10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

þ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the Quarterly Period Ended March 31, 2018

OR

¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from to

Commission File No. 001-31720

PIPER JAFFRAY COMPANIES

(Exact Name of Registrant as specified in its Charter)

DELAWARE		30-0168701
(State or Other Jurisdiction of Incorporation or Organization)		(IRS Employer Identification No.)
800 Nicollet Mall, Suite 1000 Minneapolis, Minnesota		55402
(Address of Principal Executive Offices)		(Zip Code)
	(612) 303-6000
(Registrant's Telephone Number, Including Area Code)

Indicate by check mark whether the registrant: (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes  þ No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes  þ No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company," and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer	þ		Accelerated filer	¨
Non-accelerated filer	¨	(Do not check if a smaller reporting company)	Smaller reporting company	¨
			Emerging growth company	¨

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act.  ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes  ¨ No  þ

As of April 30, 2018, the registrant had 15,198,317 shares of Common Stock outstanding.

Piper Jaffray Companies

Index to Quarterly Report on Form 10-Q

PART I. FINANCIAL INFORMATION
ITEM 1.	FINANCIAL STATEMENTS	3
	Consolidated Statements of Financial Condition as of March 31, 2018 (Unaudited) and December 31, 2017	3
	Consolidated Statements of Operations for the three months ended March 31, 2018 and March 31, 2017 (Unaudited)	4
	Consolidated Statements of Comprehensive Income for the three months ended March 31, 2018 and March 31, 2017 (Unaudited)	5
	Consolidated Statements of Cash Flows for the three months ended March 31, 2018 and March 31, 2017 (Unaudited)	6
	Notes to the Consolidated Financial Statements (Unaudited)	8
ITEM 2.	MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	37
ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	60
ITEM 4.	CONTROLS AND PROCEDURES	60
PART II. OTHER INFORMATION
ITEM 1.	LEGAL PROCEEDINGS	60
ITEM 1A.	RISK FACTORS	60
ITEM 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	61
ITEM 6.	EXHIBITS	61
	SIGNATURES	62

PART I.    FINANCIAL INFORMATION

ITEM 1.    FINANCIAL STATEMENTS.

Piper Jaffray Companies

Consolidated Statements of Financial Condition

	March 31,			December 31,
	2018			2017
(Amounts in thousands, except share data)	(Unaudited)
Assets
Cash and cash equivalents	$	27,642		$	33,793
Receivables from brokers, dealers and clearing organizations	46,302			145,394
Financial instruments and other inventory positions owned	529,943			663,330
Financial instruments and other inventory positions owned and pledged as collateral	503,860			720,047
Total financial instruments and other inventory positions owned	1,033,803			1,383,377
Fixed assets (net of accumulated depreciation and amortization of $58,059 and $55,944, respectively)	24,787			25,179
Goodwill	81,855			81,855
Intangible assets (net of accumulated amortization of $88,032 and $85,417, respectively)	20,219			22,834
Investments	169,739			176,212
Net deferred income tax assets	95,595			101,205
Other assets	77,424			54,834
Total assets	$	1,577,366		$	2,024,683
Liabilities and Shareholders' Equity
Short-term financing	$	186,254		$	289,937
Senior notes	125,000			125,000
Payables to brokers, dealers and clearing organizations	33,582			19,392
Financial instruments and other inventory positions sold, but not yet purchased	320,469			399,227
Accrued compensation	127,351			400,092
Other liabilities and accrued expenses	49,703			49,800
Total liabilities	842,359			1,283,448
Shareholders' equity:
Common stock, $0.01 par value:
Shares authorized: 100,000,000 at March 31, 2018 and December 31, 2017;
Shares issued: 19,513,856 at March 31, 2018 and 19,512,914 at December 31, 2017;
Shares outstanding: 13,298,825 at March 31, 2018 and 12,911,149 at December 31, 2017	195			195
Additional paid-in capital	802,566			791,970
Retained earnings (1)	152,701			176,270
Less common stock held in treasury, at cost: 6,215,031 at March 31, 2018 and 6,601,765 shares at December 31, 2017	(266,720		)	(273,824		)
Accumulated other comprehensive loss	(750		)	(1,279		)
Total common shareholders' equity	687,992			693,332
Noncontrolling interests	47,015			47,903
Total shareholders' equity	735,007			741,235
Total liabilities and shareholders' equity	$	1,577,366		$	2,024,683

(1) Includes the cumulative effect adjustment upon adoption of ASU 2014-09, as amended. See Note 2 for further discussion.

See Notes to the Consolidated Financial Statements

3

Piper Jaffray Companies

Consolidated Statements of Operations

(Unaudited)

	Three Months Ended
	March 31,
(Amounts in thousands, except per share data)	2018			2017
Revenues:
Investment banking	$	120,841		$	132,250
Institutional brokerage	27,645			39,136
Asset management	12,589			16,007
Interest	10,413			7,719
Investment income	2,912			10,375
Total revenues	174,400			205,487
Interest expense	5,338			4,958
Net revenues	169,062			200,529
Non-interest expenses:
Compensation and benefits	115,170			134,378
Outside services	8,939			10,328
Occupancy and equipment	8,578			8,462
Communications	8,626			7,616
Marketing and business development	7,299			7,547
Deal-related expenses	5,051			—
Trade execution and clearance	2,163			1,811
Intangible asset amortization	2,615			3,822
Back office conversion costs	—			866
Other operating expenses	2,583			2,890
Total non-interest expenses	161,024			177,720
Income before income tax benefit	8,038			22,809
Income tax benefit	(2,581		)	(395		)
Net income	10,619			23,204
Net income applicable to noncontrolling interests	16			2,929
Net income applicable to Piper Jaffray Companies	$	10,603		$	20,275
Net income applicable to Piper Jaffray Companies' common shareholders	$	6,435		$	16,828
Earnings per common share
Basic	$	0.47		$	1.33
Diluted	$	0.47		$	1.31
Dividends declared per common share	$	2.00		$	0.31
Weighted average number of common shares outstanding
Basic	13,096			12,594
Diluted	13,382			12,922

See Notes to the Consolidated Financial Statements

4

Piper Jaffray Companies

Consolidated Statements of Comprehensive Income

(Unaudited)

	Three Months Ended
	March 31,
(Amounts in thousands)	2018		2017
Net income	$	10,619	$	23,204
Other comprehensive income, net of tax:
Foreign currency translation adjustment	529		223
Comprehensive income	11,148		23,427
Comprehensive income applicable to noncontrolling interests	16		2,929
Comprehensive income applicable to Piper Jaffray Companies	$	11,132	$	20,498

See Notes to the Consolidated Financial Statements

5

Piper Jaffray Companies

Consolidated Statements of Cash Flows

(Unaudited)

	Three Months Ended
	March 31,
(Dollars in thousands)	2018			2017
Operating Activities:
Net income	$	10,619		$	23,204
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of fixed assets	2,003			1,703
Deferred income taxes	5,610			13,916
Stock-based compensation	8,970			4,676
Amortization of intangible assets	2,615			3,822
Amortization of forgivable loans	1,298			1,820
Decrease/(increase) in operating assets:
Receivables:
Customers	—			8,428
Brokers, dealers and clearing organizations	99,092			18,444
Securities purchased under agreements to resell	—			(71,423		)
Net financial instruments and other inventory positions owned	270,816			145,860
Investments	6,473			8,382
Other assets	(23,256		)	(14,170		)
Increase/(decrease) in operating liabilities:
Payables:
Customers	—			12,242
Brokers, dealers and clearing organizations	14,190			163,221
Securities sold under agreements to repurchase	—			(480		)
Accrued compensation	(247,363		)	(153,843		)
Other liabilities and accrued expenses	(4,619		)	(1,993		)
Net cash provided by operating activities	146,448			163,809
Investing Activities:
Purchases of fixed assets, net	(1,560		)	(1,756		)
Net cash used in investing activities	(1,560		)	(1,756		)
Continued on next page

6

Piper Jaffray Companies

Consolidated Statements of Cash Flows – Continued

(Unaudited)

	Three Months Ended
	March 31,
(Dollars in thousands)	2018			2017
Financing Activities:
Decrease in short-term financing	$	(103,683	)	$	(121,686	)
Payment of cash dividend	(30,375		)	(4,746		)
Decrease in noncontrolling interests	(904		)	(16,154		)
Repurchase of common stock	(16,797		)	(19,788		)
Proceeds from stock option exercises	—			1,703
Net cash used in financing activities	(151,759		)	(160,671		)
Currency adjustment:
Effect of exchange rate changes on cash	720			145
Net increase/(decrease) in cash, cash equivalents and restricted cash (1)	(6,151		)	1,527
Cash, cash equivalents and restricted cash at beginning of period (1)	33,793			70,374
Cash, cash equivalents and restricted cash at end of period (1)	$	27,642		$	71,901
Supplemental disclosure of cash flow information –
Cash paid during the period for:
Interest	$	5,615		$	4,464
Income taxes	$	12,474		$	7,710

(1) Upon adoption of ASU 2016-18, restricted cash includes cash and cash equivalents previously segregated for regulatory purposes. See Note 2 for further discussion.

See Notes to the Consolidated Financial Statements

7

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Index

Note 1	Organization and Basis of Presentation	9
Note 2	Accounting Policies and Pronouncements	10
Note 3	Financial Instruments and Other Inventory Positions Owned and Financial Instruments and Other Inventory Positions Sold, but Not Yet Purchased	13
Note 4	Fair Value of Financial Instruments	15
Note 5	Variable Interest Entities	21
Note 6	Receivables from and Payables to Brokers, Dealers and Clearing Organizations	22
Note 7	Investments	23
Note 8	Other Assets	24
Note 9	Short-Term Financing	24
Note 10	Contingencies, Commitments and Guarantees	25
Note 11	Shareholders' Equity	26
Note 12	Compensation Plans	28
Note 13	Earnings Per Share	33
Note 14	Segment Reporting	34
Note 15	Net Capital Requirements and Other Regulatory Matters	36
Note 16	Income Taxes	36

8

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Note 1Organization and Basis of Presentation

Organization

Piper Jaffray Companies is the parent company of Piper Jaffray & Co. ("Piper Jaffray"), a securities broker dealer and investment banking firm; Piper Jaffray Ltd., a firm providing securities brokerage and mergers and acquisitions services in Europe; Piper Jaffray Finance LLC, which facilitates corporate debt underwriting in conjunction with affiliated credit vehicles; Advisory Research, Inc. ("ARI"), which provides asset management services to separately managed accounts, closed-end and open-end funds and partnerships; Piper Jaffray Investment Group Inc. and PJC Capital Management LLC, which consist of entities providing alternative asset management services; Piper Jaffray Financial Products Inc. and Piper Jaffray Financial Products II Inc., entities that facilitate derivative transactions; and other immaterial subsidiaries.

Effective August 7, 2017, Piper Jaffray transitioned from a self clearing securities broker dealer to a fully disclosed clearing model. Pershing LLC ("Pershing") is Piper Jaffray's clearing broker dealer responsible for the clearance and settlement of firm and customer cash and security transactions.

Piper Jaffray Companies and its subsidiaries (collectively, the "Company") operate in two reporting segments: Capital Markets and Asset Management. A summary of the activities of each of the Company's business segments is as follows:

Capital Markets

The Capital Markets segment provides investment banking services and institutional sales, trading and research services. Investment banking services include financial advisory services, management of and participation in underwritings and public finance activities. Revenues are generated through the receipt of advisory and financing fees. Institutional sales, trading and research services focus on the trading of equity and fixed income products with institutions, government and non-profit entities. Revenues are generated through commissions and sales credits earned on equity and fixed income institutional sales activities, net interest revenues on trading securities held in inventory, and profits and losses from trading these securities. Also, the Company generates revenue through strategic trading and investing activities, which focus on investments in municipal bonds, U.S. government agency securities, and merchant banking activities involving equity or debt investments in late stage private companies. The Company has created alternative asset management funds in merchant banking, energy and senior living in order to invest firm capital and to manage capital from outside investors. The Company receives management and performance fees for managing these funds.

Asset Management

The Asset Management segment provides traditional asset management services with product offerings in master limited partnerships and equity securities to institutions and individuals. Revenues are generated in the form of management and performance fees. Revenues are also generated through investments in the partnerships and funds that the Company manages.

Basis of Presentation

The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") for interim financial information and the rules and regulations of the Securities and Exchange Commission ("SEC"). Pursuant to this guidance, certain information and disclosures have been omitted that are included within complete annual financial statements. Except as disclosed herein, there have been no material changes in the information reported in the financial statements and related disclosures in the Company's Annual Report on Form 10-K for the year ended December 31, 2017.

The consolidated financial statements include the accounts of Piper Jaffray Companies, its wholly owned subsidiaries, and all other entities in which the Company has a controlling financial interest. Noncontrolling interests represent equity interests in consolidated entities that are not attributable, either directly or indirectly, to Piper Jaffray Companies. Noncontrolling interests include the minority equity holders' proportionate share of the equity in the Company's alternative asset management funds. All material intercompany balances have been eliminated.

Management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Although these estimates and assumptions are based on the best information available, actual results could differ from those estimates.

9

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Note 2Accounting Policies and Pronouncements

Summary of Significant Accounting Policies

Refer to the Company's Annual Report on Form 10-K for the year ended December 31, 2017 for a full description of the Company's significant accounting policies. Changes to the Company's significant accounting policies are described below.

Revenue Recognition

Investment Banking– Investment banking revenues, which include advisory and underwriting fees, are recorded when the performance obligation for the transaction is satisfied under the terms of each engagement. Expenses associated with such transactions are deferred until the related revenue is recognized or the engagement is otherwise concluded. Investment banking revenues are presented gross of related client reimbursed deal expenses. Expenses for completed deals are reported separately in deal-related expenses on the consolidated statements of operations. Expenses related to investment banking deals not completed are recognized as non-interest expenses on the consolidated statements of operations.

The Company's advisory fees generally consist of a nonrefundable up-front fee and a success fee. The nonrefundable fee is recorded as deferred revenue upon receipt and recognized at a point in time when the performance obligation is satisfied, or when the transaction is deemed by management to be terminated. Management's judgment is required in determining when a transaction is considered to be terminated.

The substantial majority of the Company's advisory and underwriting fees (i.e., the success related advisory fee) are considered variable consideration and recognized when it is probable that the variable consideration will not be reversed in a future period. The variable consideration is considered to be constrained until satisfaction of the performance obligation. The Company's performance obligation is generally satisfied at a point in time upon the closing of a strategic transaction, completion of a financing or underwriting arrangement, or some other defined outcome. At this time, the Company has transferred control of the promised service and the customer obtains control. As these arrangements represent a single performance obligation, allocation of the transaction price is not necessary. The Company has elected to apply the following optional exemptions regarding disclosure of its remaining performance obligations: (i) the Company's performance obligation is part of a contract that has an original expected duration of one year or less and/or (ii) the variable consideration is allocated entirely to a wholly unsatisfied promise to transfer a distinct service that forms part of a single performance obligation.

Institutional Brokerage– Institutional brokerage revenues include (i) commissions received from customers for the execution of brokerage transactions in listed and over-the-counter (OTC) equity, fixed income and convertible debt securities, which are recognized at a point in time on the trade date because the customer has obtained the rights to the underlying security provided by the trade execution service, (ii) trading gains and losses, recorded on changes in the fair value of long and short security positions in the reporting period and (iii) fees received by the Company for equity research, which are generally recognized in the period received. The Company permits institutional customers to allocate a portion of their gross commissions to pay for research products and other services provided by third parties. The amounts allocated for those purposes are commonly referred to as soft dollar arrangements. As the Company is not acting as a principal in satisfying the performance obligation for these arrangements, expenses relating to soft dollars are netted against commission revenues and included in other liabilities and accrued expenses on the consolidated statements of financial condition.

Asset Management– Asset management fees include revenues the Company receives in connection with management and investment advisory services performed for separately managed accounts and various funds and partnerships. The performance obligation related to the transfer of these services is satisfied over time and the related fees are recognized under the output method, which reflects the fees that the Company has a right to invoice based on the services provided during the period. Fees are defined in client contracts as a percentage of portfolio assets under management. Amounts related to remaining performance obligations are not disclosed as the Company applies the output method.

10

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Asset management revenues may also include performance fees. Performance fees, if earned, are recognized when it is probable that such revenue will not be reversed in a future period. For the Company's alternative asset management funds, management will consider such factors as the remaining assets and residual life of the fund to conclude whether it is probable that a significant reversal of revenue will not occur in the future. For the Company's traditional asset management funds, performance fees are earned when the investment return on assets under management exceeds certain benchmark targets or other performance targets over a specified measurement period (monthly, quarterly or annually). These performance fees are typically annual performance hurdles and recognized in the fourth quarter of the applicable year, or upon client liquidation.

Adoption of New Accounting Standards

Revenue Recognition

In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2014-09, "Revenue from Contracts with Customers (Topic 606)" ("ASU 2014-09"), which supersedes previous revenue recognition guidance, including most industry-specific guidance. ASU 2014-09, as amended, requires a company to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods and services, and also requires enhanced disclosures.

The Company adopted this guidance effective as of January 1, 2018 under the modified retrospective method, in which the cumulative effect of applying the standard was recognized at the date of initial application. The cumulative effect adjustment that the Company recognized upon adoption as of January 1, 2018 was a decrease to retained earnings of $3.6 million, net of tax. The Company applied the guidance only to those contracts that were not completed at the date of initial application.

The previous broker dealer industry treatment of netting deal expenses with investment banking revenues was superseded under the new guidance. As a result of adopting ASU 2014-09, the Company now presents investment banking revenues gross of related client reimbursed deal expenses and deal-related expenses as non-interest expenses on the consolidated statements of operations, rather than the previous presentation of netting deal expenses incurred for completed investment banking deals within revenues. For the three months ended March 31, 2018, the Company reported higher investment banking revenues and higher non-compensation expenses of $5.1 million, respectively. This change did not impact earnings. In addition, the Company now defers the recognition of performance fees on its merchant banking, energy and senior living alternative asset management funds until such fees are no longer subject to reversal, which will cause a delay in the recognition of these fees as revenue. For the three months ended March 31, 2018, the amount of asset management revenue from performance fees that the Company would have recognized if not for this change was not material. With the exception of the above, the Company’s previous methods of recognizing investment banking revenues were not significantly impacted by the new guidance.

Recognition and Measurement of Financial Assets and Financial Liabilities

In January 2016, the FASB issued ASU No. 2016-01, "Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities" ("ASU 2016-01"). The amendments in ASU 2016-01 address certain aspects of the recognition, measurement, presentation and disclosure of financial instruments. ASU 2016-01 became effective for the Company as of January 1, 2018. There was no material impact to the Company's results of operations, financial position or disclosures upon adoption as the Company's financial instruments are already recorded at fair value.

Statement of Cash Flows

In August 2016, the FASB issued ASU No. 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments" ("ASU 2016-15"). ASU 2016-15 clarifies how entities should classify certain cash receipts and cash payments on the statement of cash flows. The amendments in ASU 2016-15 became effective for the Company as of January 1, 2018, with retrospective application. There was no material impact to the Company's presentation of its consolidated statements of cash flows upon adoption of ASU 2016-15.

11

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

In November 2016, the FASB issued ASU No. 2016-18, "Statement of Cash Flows (Topic 230): Restricted Cash" ("ASU 2016-18"). Under ASU 2016-18, restricted cash will be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period amounts shown on the consolidated statements of cash flows. ASU 2016-18 became effective for the Company as of January 1, 2018, with retrospective application. As a registered broker dealer, Piper Jaffray is subject to Rule 15c3-3 of the Securities Exchange Act of 1934, which requires broker dealers carrying customer accounts to maintain cash or qualified securities in a segregated reserve account for the exclusive benefit of its customers. These accounts were previously classified as cash and cash equivalents segregated for regulatory purposes on the consolidated statements of financial condition. Subsequent to transitioning to a fully disclosed clearing model in 2017, Piper Jaffray no longer carries customer accounts and is no longer subject to Rule 15c3-3. The following table provides a reconciliation of cash, cash equivalents and restricted cash for all periods presented on the consolidated statements of cash flows:

	December 31,		March 31,		December 31,
(Dollars in thousands)	2017		2017		2016
Cash and cash equivalents	$	33,793	$	18,879	$	41,359
Cash and cash equivalents segregated for regulatory purposes	—		53,022		29,015
Cash, cash equivalents and restricted cash	$	33,793	$	71,901	$	70,374

Future Adoption of New Applicable Accounting Standards

Leases

In February 2016, the FASB issued ASU No. 2016-02, "Leases (Topic 842)" ("ASU 2016-02"). ASU 2016-02 requires lessees to recognize a right-of-use asset and lease liability on the consolidated statements of financial position and disclose key information about leasing arrangements. The recognition, measurement and presentation of expenses and cash flows arising from a lease by a lessee have not significantly changed from current U.S. GAAP. ASU 2016-02 is effective for annual and interim periods beginning after December 15, 2018. As of March 31, 2018, the Company had approximately 65 operating leases for office space with aggregate minimum lease commitments of $78.7 million. Upon adoption, this lease commitment will be reflected on the statement of financial condition as a right-of-use asset and a lease commitment liability. The Company is evaluating other service contracts which may include embedded leases, however, the Company does not expect these to be material. Upon adoption of ASU 2016-02, the Company does not expect material changes to the recognition of rent expense in its consolidated statements of operations. The impact of the new guidance on Piper Jaffray's net capital is expected to be minimal.

Financial Instruments – Credit Losses

In June 2016, the FASB issued ASU No. 2016-13, "Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments" ("ASU 2016-13"). The new guidance requires an entity to measure all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts as opposed to delaying recognition until the loss was probable of occurring. ASU 2016-13 is effective for annual and interim periods beginning after December 15, 2019. Early adoption is permitted for annual and interim periods beginning after December 15, 2018. The Company does not expect the adoption of ASU 2016-13 to have a material impact on its consolidated financial statements.

12

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Note 3Financial Instruments and Other Inventory Positions Owned and Financial Instruments and Other Inventory Positions Sold, but Not Yet Purchased

	March 31,		December 31,
(Dollars in thousands)	2018		2017
Financial instruments and other inventory positions owned:
Corporate securities:
Equity securities	$	16,009	$	51,896
Convertible securities	90,841		74,456
Fixed income securities	35,582		30,145
Municipal securities:
Taxable securities	50,346		67,699
Tax-exempt securities	449,016		744,241
Short-term securities	113,775		62,251
Mortgage-backed securities	284		481
U.S. government agency securities	258,684		317,318
U.S. government securities	299		9,317
Derivative contracts	18,967		25,573
Total financial instruments and other inventory positions owned	$	1,033,803	$	1,383,377
Financial instruments and other inventory positions sold, but not yet purchased:
Corporate securities:
Equity securities	$	77,542	$	101,517
Fixed income securities	29,998		30,292
U.S. government agency securities	23,674		49,077
U.S. government securities	185,010		213,312
Derivative contracts	4,245		5,029
Total financial instruments and other inventory positions sold, but not yet purchased	$	320,469	$	399,227

At March 31, 2018 and December 31, 2017, financial instruments and other inventory positions owned in the amount of $503.9 million and $720.0 million, respectively, had been pledged as collateral for short-term financings.

Financial instruments and other inventory positions sold, but not yet purchased represent obligations of the Company to deliver the specified security at the contracted price, thereby creating a liability to purchase the security in the market at prevailing prices. The Company is obligated to acquire the securities sold short at prevailing market prices, which may exceed the amount reflected on the consolidated statements of financial condition. The Company economically hedges changes in the market value of its financial instruments and other inventory positions owned using inventory positions sold, but not yet purchased, interest rate derivatives, credit default swap index contracts, U.S. treasury bond futures and exchange traded options.

Derivative Contract Financial Instruments

The Company uses interest rate swaps, interest rate locks, credit default swap index contracts, U.S. treasury bond futures and equity option contracts as a means to manage risk in certain inventory positions. The Company also enters into interest rate swaps to facilitate customer transactions. The following describes the Company's derivatives by the type of transaction or security the instruments are economically hedging.

Customer matched-book derivatives: The Company enters into interest rate derivative contracts in a principal capacity as a dealer to satisfy the financial needs of its customers. The Company simultaneously enters into an interest rate derivative contract with a third party for the same notional amount to hedge the interest rate and credit risk of the initial client interest rate derivative contract. In certain limited instances, the Company has only hedged interest rate risk with a third party, and retains uncollateralized credit risk as described below. The instruments use interest rates based upon either the London Interbank Offer Rate ("LIBOR") index or the Securities Industry and Financial Markets Association ("SIFMA") index.

13

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Trading securities derivatives: The Company enters into interest rate derivative contracts and uses U.S. treasury bond futures to hedge interest rate and market value risks associated with its fixed income securities. These instruments use interest rates based upon either the Municipal Market Data ("MMD") index, LIBOR or the SIFMA index. The Company also enters into credit default swap index contracts to hedge credit risk associated with its taxable fixed income securities and option contracts to hedge market value risk associated with its convertible securities.

Derivatives are reported on a net basis by counterparty (i.e., the net payable or receivable for derivative assets and liabilities for a given counterparty) when a legal right of offset exists and on a net basis by cross product when applicable provisions are stated in master netting agreements. Cash collateral received or paid is netted on a counterparty basis, provided a legal right of offset exists. The total absolute notional contract amount, representing the absolute value of the sum of gross long and short derivative contracts, provides an indication of the volume of the Company's derivative activity and does not represent gains and losses. The following table presents the gross fair market value and the total absolute notional contract amount of the Company's outstanding derivative instruments, prior to counterparty netting, by asset or liability position:

	March 31, 2018						December 31, 2017
(Dollars in thousands)	Derivative		Derivative		Notional		Derivative		Derivative		Notional
Derivative Category	Assets (1)		Liabilities (2)		Amount		Assets (1)		Liabilities (2)		Amount
Interest rate
Customer matched-book	$	194,735	$	182,472	$	2,682,335	$	239,224	$	225,890	$	2,819,006
Trading securities	2,393		1,389		455,775		126		4,459		399,450
Equity options
Trading securities	—		—		—		6		—		9,635
	$	197,128	$	183,861	$	3,138,110	$	239,356	$	230,349	$	3,228,091

(1) Derivative assets are included within financial instruments and other inventory positions owned on the consolidated statements of financial condition.

(2) Derivative liabilities are included within financial instruments and other inventory positions sold, but not yet purchased on the consolidated statements of financial condition.

The Company's derivative contracts do not qualify for hedge accounting, therefore, unrealized gains and losses are recorded on the consolidated statements of operations. The gains and losses on the related economically hedged inventory positions are not disclosed below as they are not in qualifying hedging relationships. The following table presents the Company's unrealized gains/(losses) on derivative instruments:

		Three Months Ended
(Dollars in thousands)		March 31,
Derivative Category	Operations Category	2018			2017
Interest rate derivative contract	Investment banking	$	(795	)	$	(292	)
Interest rate derivative contract	Institutional brokerage	5,062			(14,738		)
Credit default swap index contract	Institutional brokerage	—			255
		$	4,267		$	(14,775	)

Credit risk associated with the Company's derivatives is the risk that a derivative counterparty will not perform in accordance with the terms of the applicable derivative contract. Credit exposure associated with the Company's derivatives is driven by uncollateralized market movements in the fair value of the contracts with counterparties and is monitored regularly by the Company's financial risk committee. The Company considers counterparty credit risk in determining derivative contract fair value. The majority of the Company's derivative contracts are substantially collateralized by its counterparties, who are major financial institutions. The Company has a limited number of counterparties who are not required to post collateral. Based on market movements, the uncollateralized amounts representing the fair value of the derivative contract can become material, exposing the Company to the credit risk of these counterparties. As of March 31, 2018, the Company had $17.0 million of uncollateralized credit exposure with these counterparties (notional contract amount of $179.9 million), including $12.9 million of uncollateralized credit exposure with one counterparty.

14

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Note 4Fair Value of Financial Instruments

Based on the nature of the Company's business and its role as a "dealer" in the securities industry or as a manager of alternative asset management funds, the fair values of its financial instruments are determined internally. The Company's processes are designed to ensure that the fair values used for financial reporting are based on observable inputs wherever possible. In the event that observable inputs are not available, unobservable inputs are developed based on an evaluation of all relevant empirical market data, including prices evidenced by market transactions, interest rates, credit spreads, volatilities and correlations and other security-specific information. Valuation adjustments related to illiquidity or counterparty credit risk are also considered. In estimating fair value, the Company may utilize information provided by third party pricing vendors to corroborate internally-developed fair value estimates.

The Company employs specific control processes to determine the reasonableness of the fair value of its financial instruments. The Company's processes are designed to ensure that the internally-estimated fair values are accurately recorded and that the data inputs and the valuation techniques used are appropriate, consistently applied, and that the assumptions are reasonable and consistent with the objective of determining fair value. Individuals outside of the trading departments perform independent pricing verification reviews as of each reporting date. The Company has established parameters which set forth when the fair value of securities are independently verified. The selection parameters are generally based upon the type of security, the level of estimation risk of a security, the materiality of the security to the Company's financial statements, changes in fair value from period to period, and other specific facts and circumstances of the Company's securities portfolio. In evaluating the initial internally-estimated fair values made by the Company's traders, the nature and complexity of securities involved (e.g., term, coupon, collateral, and other key drivers of value), level of market activity for securities, and availability of market data are considered. The independent price verification procedures include, but are not limited to, analysis of trade data (both internal and external where available), corroboration to the valuation of positions with similar characteristics, risks and components, or comparison to an alternative pricing source, such as a discounted cash flow model. The Company's valuation committee, comprised of members of senior management and risk management, provides oversight and overall responsibility for the internal control processes and procedures related to fair value measurements.

The following is a description of the valuation techniques used to measure fair value.

Cash Equivalents

Cash equivalents include highly liquid investments with original maturities of 90 days or less. Actively traded money market funds are measured at their net asset value and classified as Level I.

Financial Instruments and Other Inventory Positions Owned

The Company records financial instruments and other inventory positions owned and financial instruments and other inventory positions sold, but not yet purchased at fair value on the consolidated statements of financial condition with unrealized gains and losses reflected on the consolidated statements of operations.

Equity securities – Exchange traded equity securities are valued based on quoted prices from the exchange for identical assets or liabilities as of the period-end date. To the extent these securities are actively traded and valuation adjustments are not applied, they are categorized as Level I. Non-exchange traded equity securities (principally hybrid preferred securities) are measured primarily using broker quotations, prices observed for recently executed market transactions and internally-developed fair value estimates based on observable inputs and are categorized within Level II of the fair value hierarchy.

Convertible securities – Convertible securities are valued based on observable trades, when available. Accordingly, these convertible securities are categorized as Level II.

Corporate fixed income securities – Fixed income securities include corporate bonds which are valued based on recently executed market transactions of comparable size, internally-developed fair value estimates based on observable inputs, or broker quotations. Accordingly, these corporate bonds are categorized as Level II.

Taxable municipal securities – Taxable municipal securities are valued using recently executed observable trades or market price quotations and therefore are generally categorized as Level II.

15

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Tax-exempt municipal securities – Tax-exempt municipal securities are valued using recently executed observable trades or market price quotations and therefore are generally categorized as Level II. Certain illiquid tax-exempt municipal securities are valued using market data for comparable securities (maturity and sector) and management judgment to infer an appropriate current yield or other model-based valuation techniques deemed appropriate by management based on the specific nature of the individual security and are therefore categorized as Level III.

Short-term municipal securities – Short-term municipal securities include auction rate securities, variable rate demand notes, and other short-term municipal securities. Variable rate demand notes and other short-term municipal securities are valued using recently executed observable trades or market price quotations and therefore are generally categorized as Level II. Auction rate securities with limited liquidity are categorized as Level III and are valued using discounted cash flow models with unobservable inputs such as the Company's expected recovery rate on the securities.

Mortgage-backed securities – Mortgage-backed securities are valued using observable trades, when available. Certain mortgage-backed securities are valued using models where inputs to the model are directly observable in the market, or can be derived principally from or corroborated by observable market data. To the extent we hold, these mortgage-backed securities are categorized as Level II. Certain mortgage-backed securities collateralized by residential mortgages are valued using cash flow models that utilize unobservable inputs including credit default rates, prepayment rates, loss severity and valuation yields. As judgment is used to determine the range of these inputs, these mortgage-backed securities are categorized as Level III.

U.S. government agency securities – U.S. government agency securities include agency debt bonds and mortgage bonds. Agency debt bonds are valued by using either direct price quotes or price quotes for comparable bond securities and are categorized as Level II. Mortgage bonds include bonds secured by mortgages, mortgage pass-through securities, agency collateralized mortgage-obligation ("CMO") securities and agency interest-only securities. Mortgage pass-through securities, CMO securities and interest-only securities are valued using recently executed observable trades or other observable inputs, such as prepayment speeds and therefore are generally categorized as Level II. Mortgage bonds are valued using observable market inputs, such as market yields ranging from 293-348 basis points ("bps") on spreads over U.S. treasury securities, or models based upon prepayment expectations ranging from 0%-13% conditional prepayment rate ("CPR"). These securities are categorized as Level II.

U.S. government securities – U.S. government securities include highly liquid U.S. treasury securities which are generally valued using quoted market prices and therefore categorized as Level I. The Company does not transact in securities of countries other than the U.S. government.

Derivatives – Derivative contracts include interest rate swaps, interest rate locks, credit default swap index contracts, U.S. treasury bond futures and equity option contracts. These instruments derive their value from underlying assets, reference rates, indices or a combination of these factors. The Company's equity option derivative contracts are valued based on quoted prices from the exchange for identical assets or liabilities as of the period-end date. To the extent these contracts are actively traded and valuation adjustments are not applied, they are categorized as Level I. The Company's credit default swap index contracts are valued using market price quotations and are classified as Level II. The majority of the Company's interest rate derivative contracts, including both interest rate swaps and interest rate locks, are valued using market standard pricing models based on the net present value of estimated future cash flows. The valuation models used do not involve material subjectivity as the methodologies do not entail significant judgment and the pricing inputs are market observable, including contractual terms, yield curves and measures of volatility. These instruments are classified as Level II within the fair value hierarchy. Certain interest rate locks transact in less active markets and were valued using valuation models that included the previously mentioned observable inputs and certain unobservable inputs that required significant judgment, such as the premium over the MMD curve. These instruments are classified as Level III.

16

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Investments

The Company's investments valued at fair value include equity investments in private companies and partnerships, investments in registered mutual funds, warrants of public and private companies and private company debt. Investments in registered mutual funds are valued based on quoted prices on active markets and classified as Level I. Company-owned warrants, which have a cashless exercise option, are valued based upon the Black-Scholes option-pricing model and certain unobservable inputs. The Company applies a liquidity discount to the value of its warrants in public and private companies. For warrants in private companies, valuation adjustments, based upon management's judgment, are made to account for differences between the measured security and the stock volatility factors of comparable companies. Company-owned warrants are reported as Level III assets. Investments in private companies are valued based on an assessment of each underlying security, considering rounds of financing, third party transactions and market-based information, including comparable company transactions, trading multiples (e.g., multiples of revenue and earnings before interest, taxes, depreciation and amortization ("EBITDA")) and changes in market outlook, among other factors. These securities are generally categorized as Level III.

Fair Value Option – The fair value option permits the irrevocable fair value option election on an instrument-by-instrument basis at initial recognition of an asset or liability or upon an event that gives rise to a new basis of accounting for that instrument. The fair value option was elected for certain merchant banking and other investments at inception to reflect economic events in earnings on a timely basis. Merchant banking and other equity investments of $15.0 million and $14.1 million, included within investments on the consolidated statements of financial condition, are accounted for at fair value and are classified as Level III assets at March 31, 2018 and December 31, 2017, respectively. The realized and unrealized net gains from fair value changes included in earnings as a result of electing to apply the fair value option to certain financial assets were $0.8 million and $0.5 million for the three months ended March 31, 2018 and 2017, respectively.

The following table summarizes quantitative information about the significant unobservable inputs used in the fair value measurement of the Company's Level III financial instruments as of March 31, 2018:

	Valuation			Weighted
	Technique	Unobservable Input	Range	Average
Assets:
Financial instruments and other inventory positions owned:
Derivative contracts:
Interest rate locks	Discounted cash flow	Premium over the MMD curve (1)	2 - 38 bps	23.8 bps
Investments at fair value:
Equity securities in private companies	Market approach	Revenue multiple (2)	2 - 5 times	4.2 times
		EBITDA multiple (2)	11 - 15 times	12.4 times
Liabilities:
Financial instruments and other inventory positions sold, but not yet purchased:
Derivative contracts:
Interest rate locks	Discounted cash flow	Premium over the MMD curve (1)	2 - 36 bps	13.6 bps

Sensitivity of the fair value to changes in unobservable inputs:

(1) Significant increase/(decrease) in the unobservable input in isolation would result in a significantly lower/(higher) fair value measurement.

(2) Significant increase/(decrease) in the unobservable input in isolation would result in a significantly higher/(lower) fair value measurement.

17

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

The following table summarizes the valuation of the Company's financial instruments by pricing observability levels defined in FASB Accounting Standards Codification Topic 820, "Fair Value Measurement" ("ASC 820") as of March 31, 2018:

								Counterparty
								and Cash
								Collateral
(Dollars in thousands)	Level I		Level II		Level III			Netting (1)			Total
Assets:
Financial instruments and other inventory positions owned:
Corporate securities:
Equity securities	$	1,360	$	14,649	$	—		$	—		$	16,009
Convertible securities	—		90,841		—			—			90,841
Fixed income securities	—		35,582		—			—			35,582
Municipal securities:
Taxable securities	—		50,346		—			—			50,346
Tax-exempt securities	—		449,016		—			—			449,016
Short-term securities	—		113,056		719			—			113,775
Mortgage-backed securities	—		—		284			—			284
U.S. government agency securities	—		258,684		—			—			258,684
U.S. government securities	299		—		—			—			299
Derivative contracts	—		194,984		2,144			(178,161		)	18,967
Total financial instruments and other inventory positions owned	1,659		1,207,158		3,147			(178,161		)	1,033,803
Cash equivalents	1,896		—		—			—			1,896
Investments at fair value	39,953		—		121,637		(2)	—			161,590
Total assets	$	43,508	$	1,207,158	$	124,784		$	(178,161	)	$	1,197,289
Liabilities:
Financial instruments and other inventory positions sold, but not yet purchased:
Corporate securities:
Equity securities	$	74,239	$	3,303	$	—		$	—		$	77,542
Fixed income securities	—		29,998		—			—			29,998
U.S. government agency securities	—		23,674		—			—			23,674
U.S. government securities	185,010		—		—			—			185,010
Derivative contracts	—		182,472		1,389			(179,616		)	4,245
Total financial instruments and other inventory positions sold, but not yet purchased	$	259,249	$	239,447	$	1,389		$	(179,616	)	$	320,469

(1) Represents cash collateral and the impact of netting on a counterparty basis. The Company had no securities posted as collateral to its counterparties.

(2) Noncontrolling interests of $47.0 million are attributable to third party ownership in consolidated merchant banking and senior living funds.

18

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

The following table summarizes the valuation of the Company's financial instruments by pricing observability levels defined in ASC 820 as of December 31, 2017:

								Counterparty
								and Cash
								Collateral
(Dollars in thousands)	Level I		Level II		Level III			Netting (1)			Total
Assets:
Financial instruments and other inventory positions owned:
Corporate securities:
Equity securities	$	1,863	$	50,033	$	—		$	—		$	51,896
Convertible securities	—		74,456		—			—			74,456
Fixed income securities	—		30,145		—			—			30,145
Municipal securities:
Taxable securities	—		67,699		—			—			67,699
Tax-exempt securities	—		743,541		700			—			744,241
Short-term securities	—		61,537		714			—			62,251
Mortgage-backed securities	—		—		481			—			481
U.S. government agency securities	—		317,318		—			—			317,318
U.S. government securities	9,317		—		—			—			9,317
Derivative contracts	6		239,224		126			(213,783		)	25,573
Total financial instruments and other inventory positions owned	11,186		1,583,953		2,021			(213,783		)	1,383,377
Cash equivalents	3,782		—		—			—			3,782
Investments at fair value	39,504		—		126,060		(2)	—			165,564
Total assets	$	54,472	$	1,583,953	$	128,081		$	(213,783	)	$	1,552,723
Liabilities:
Financial instruments and other inventory positions sold, but not yet purchased:
Corporate securities:
Equity securities	$	91,934	$	9,583	$	—		$	—		$	101,517
Fixed income securities	—		30,292		—			—			30,292
U.S. government agency securities	—		49,077		—			—			49,077
U.S. government securities	213,312		—		—			—			213,312
Derivative contracts	—		225,916		4,433			(225,320		)	5,029
Total financial instruments and other inventory positions sold, but not yet purchased	$	305,246	$	314,868	$	4,433		$	(225,320	)	$	399,227

(1) Represents cash collateral and the impact of netting on a counterparty basis. The Company had no securities posted as collateral to its counterparties.

(2) Noncontrolling interests of $44.4 million are attributable to third party ownership in consolidated merchant banking and senior living funds.

The Company's Level III assets were $124.8 million and $128.1 million, or 10.4 percent and 8.2 percent of financial instruments measured at fair value at March 31, 2018 and December 31, 2017, respectively. The value of transfers between levels are recognized at the beginning of the reporting period. There were no significant transfers between Level I, Level II or Level III for the three months ended March 31, 2018.

19

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

The following tables summarize the changes in fair value associated with Level III financial instruments held at the beginning or end of the periods presented:

																						Unrealized gains/
																						(losses) for assets/
	Balance at													Realized			Unrealized			Balance at		liabilities held at
	December 31,								Transfers		Transfers			gains/			gains/			March 31,		March 31,
(Dollars in thousands)	2017		Purchases			Sales			in		out			(losses) (1)			(losses) (1)			2018		2018 (1)
Assets:
Financial instruments and other inventory positions owned:
Municipal securities:
Tax-exempt securities	$	700	$	—		$	—		$	—	$	(700	)	$	—		$	—		$	—	$	—
Short-term securities	714		—			—			—		—			—			5			719		5
Mortgage-backed securities	481		—			(5		)	—		—			—			(192		)	284		3
Derivative contracts	126		—			(1,760		)	—		—			1,760			2,018			2,144		2,144
Total financial instruments and other inventory positions owned	2,021		—			(1,765		)	—		(700		)	1,760			1,831			3,147		2,152
Investments at fair value	126,060		601			(4,154		)	—		—			3,402			(4,272		)	121,637		(869		)
Total assets	$	128,081	$	601		$	(5,919	)	$	—	$	(700	)	$	5,162		$	(2,441	)	$	124,784	$	1,283
Liabilities:
Financial instruments and other inventory positions sold, but not yet purchased:
Derivative contracts	$	4,433	$	(1,305	)	$	3,226		$	—	$	—		$	(1,921	)	$	(3,044	)	$	1,389	$	1,389
Total financial instruments and other inventory positions sold, but not yet purchased	$	4,433	$	(1,305	)	$	3,226		$	—	$	—		$	(1,921	)	$	(3,044	)	$	1,389	$	1,389

(1) Realized and unrealized gains/(losses) related to financial instruments, with the exception of customer matched-book derivatives, are reported in institutional brokerage on the consolidated statements of operations. Realized and unrealized gains/(losses) related to customer matched-book derivatives are reported in investment banking. Realized and unrealized gains/(losses) related to investments are reported in investment banking revenues or investment income on the consolidated statements of operations.

20

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

																				Unrealized gains/
																				(losses) for assets/
	Balance at												Realized		Unrealized			Balance at		liabilities held at
	December 31,								Transfers		Transfers		gains/		gains/			March 31,		March 31,
(Dollars in thousands)	2016		Purchases			Sales			in		out		(losses) (1)		(losses) (1)			2017		2017 (1)
Assets:
Financial instruments and other inventory positions owned:
Municipal securities:
Taxable securities	$	2,686	$	—		$	(2,703	)	$	—	$	—	$	716	$	(699	)	$	—	$	—
Tax-exempt securities	1,077		—			—			—		—		—		40			1,117		40
Short-term securities	744		—			—			—		—		—		—			744		—
Mortgage-backed securities	5,364		996			(790		)	—		—		314		(393		)	5,491		(71		)
Derivative contracts	13,952		240			(10,885		)	—		—		10,645		(12,319		)	1,633		(347		)
Total financial instruments and other inventory positions owned	23,823		1,236			(14,378		)	—		—		11,675		(13,371		)	8,985		(378		)
Investments at fair value	123,319		6,587			(24,469		)	—		—		8,656		(3,400		)	110,693		6,493
Total assets	$	147,142	$	7,823		$	(38,847	)	$	—	$	—	$	20,331	$	(16,771	)	$	119,678	$	6,115
Liabilities:
Financial instruments and other inventory positions sold, but not yet purchased:
Derivative contracts	$	1,487	$	(719	)	$	—		$	—	$	—	$	719	$	2,419		$	3,906	$	3,061
Total financial instruments and other inventory positions sold, but not yet purchased	$	1,487	$	(719	)	$	—		$	—	$	—	$	719	$	2,419		$	3,906	$	3,061

(1) Realized and unrealized gains/(losses) related to financial instruments, with the exception of customer matched-book derivatives, are reported in institutional brokerage on the consolidated statements of operations. Realized and unrealized gains/(losses) related to customer matched-book derivatives are reported in investment banking. Realized and unrealized gains/(losses) related to investments are reported in investment banking revenues or investment income on the consolidated statements of operations.

The carrying values of the Company's cash, receivables and payables either from or to brokers, dealers and clearing organizations and short-term financings approximate fair value due to their liquid or short-term nature.

Note 5Variable Interest Entities ("VIEs")

The Company has investments in and/or acts as the managing partner of various partnerships, limited liability companies, and registered mutual funds. These entities were established for the purpose of investing in securities of public or private companies, or municipal debt obligations, or providing financing to senior living facilities, and were initially financed through the capital commitments or seed investments of the members.

VIEs are entities in which equity investors lack the characteristics of a controlling financial interest or do not have sufficient equity at risk for the entity to finance its activities. The determination as to whether an entity is a VIE is based on the structure and nature of each entity. The Company also considers other characteristics such as the power through voting rights or similar rights to direct the activities of an entity that most significantly impact the entity's economic performance and how the entity is financed.

The Company is required to consolidate all VIEs for which it is considered to be the primary beneficiary. The determination as to whether the Company is considered to be the primary beneficiary is based on whether the Company has both the power to direct the activities of the VIE that most significantly impact the entity's economic performance and the obligation to absorb losses or the right to receive benefits of the VIE that could potentially be significant to the VIE.

21

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Consolidated VIEs

The Company's consolidated VIEs at March 31, 2018 included certain alternative asset management funds in which the Company has an investment and, as the managing partner, is deemed to have both the power to direct the most significant activities of the funds and the right to receive benefits (or the obligation to absorb losses) that could potentially be significant to these funds.

The following table presents information about the carrying value of the assets and liabilities of the VIEs which are consolidated by the Company and included on the consolidated statements of financial condition at March 31, 2018. The assets can only be used to settle the liabilities of the respective VIE, and the creditors of the VIEs do not have recourse to the general credit of the Company. One of these VIEs has $25.0 million of bank line financing available with an interest rate based on prime plus an applicable margin. The assets and liabilities are presented prior to consolidation, and thus a portion of these assets and liabilities are eliminated in consolidation.

	Alternative Asset
(Dollars in thousands)	Management Funds
Assets:
Receivables from brokers, dealers and clearing organizations	$	3,223
Financial instruments and other inventory positions owned and pledged as collateral	216,884
Investments	106,515
Other assets	6,780
Total assets	$	333,402
Liabilities:
Short-term financing	$	136,284
Payables to brokers, dealers and clearing organizations	6,169
Financial instruments and other inventory positions sold, but not yet purchased	51,531
Other liabilities and accrued expenses	8,846
Total liabilities	$	202,830

The Company has investments in a grantor trust which was established as part of a nonqualified deferred compensation plan. The Company is the primary beneficiary of the grantor trust. Accordingly, the assets and liabilities of the grantor trust are consolidated by the Company on the consolidated statements of financial condition. See Note 12 for additional information on the nonqualified deferred compensation plan.

Nonconsolidated VIEs

The Company determined it is not the primary beneficiary of certain VIEs and accordingly does not consolidate them. These VIEs had net assets approximating $0.5 billion and $0.6 billion at March 31, 2018 and December 31, 2017, respectively. The Company's exposure to loss from these VIEs is $6.4 million, which is the carrying value of its capital contributions recorded in investments on the consolidated statements of financial condition at March 31, 2018. The Company had no liabilities related to these VIEs at March 31, 2018 and December 31, 2017, respectively. Furthermore, the Company has not provided financial or other support to these VIEs that it was not previously contractually required to provide as of March 31, 2018.

Note 6Receivables from and Payables to Brokers, Dealers and Clearing Organizations

	March 31,		December 31,
(Dollars in thousands)	2018		2017
Receivable arising from unsettled securities transactions	$	3,223	$	9,218
Receivable from clearing organizations	7,991		109,270
Deposits with clearing organizations	14,745		11,019
Receivable from brokers and dealers	16,011		12,041
Other	4,332		3,846
Total receivables from brokers, dealers and clearing organizations	$	46,302	$	145,394

22

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

	March 31,		December 31,
(Dollars in thousands)	2018		2017
Payable arising from unsettled securities transactions	$	6,169	$	808
Payable to clearing organizations	25,655		—
Payable to brokers and dealers	1,758		18,584
Total payables to brokers, dealers and clearing organizations	$	33,582	$	19,392

As discussed in Note 1, Piper Jaffray transitioned from a self clearing securities broker dealer to a fully disclosed clearing model in 2017. Under the Company's fully disclosed clearing agreement, the majority of its securities inventories and all of its customer activities are held by or cleared through Pershing. The Company has also established an arrangement to obtain financing from Pershing related to the majority of its trading activities. Financing under this arrangement is secured primarily by securities, and collateral limitations could reduce the amount of funding available under this arrangement. The funding is at the discretion of Pershing and could be denied. The Company's clearing arrangement activities are recorded net from trading activity. The Company's fully disclosed clearing agreement includes a covenant requiring Piper Jaffray to maintain excess net capital of $120 million.

Note 7Investments

The Company's investments include investments in private companies and partnerships, registered mutual funds, warrants of public and private companies and private company debt.

	March 31,			December 31,
(Dollars in thousands)	2018			2017
Investments at fair value	$	161,590		$	165,564
Investments at cost	1,661			2,416
Investments accounted for under the equity method	6,488			8,232
Total investments	169,739			176,212
Less investments attributable to noncontrolling interests (1)	(47,015		)	(44,397		)
	$	122,724		$	131,815

(1) Noncontrolling interests are attributable to third party ownership in consolidated merchant banking and senior living funds.

At March 31, 2018, investments carried on a cost basis had an estimated fair market value of $3.0 million. Because valuation estimates were based upon management's judgment, investments carried at cost would be categorized as Level III assets in the fair value hierarchy, if they were carried at fair value.

Investments accounted for under the equity method include general and limited partnership interests. The carrying value of these investments is based on the investment vehicle's net asset value. The net assets of investment partnerships consist of investments in both marketable and non-marketable securities. The underlying investments held by such partnerships are valued based on the estimated fair value determined by management in the Company's capacity as general partner or investor and, in the case of investments in unaffiliated investment partnerships, are based on financial statements prepared by the unaffiliated general partners.

23

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Note 8Other Assets

	March 31,		December 31,
(Dollars in thousands)	2018		2017
Fee receivables	$	23,602	$	20,884
Income tax receivables	19,193		—
Accrued interest receivables	9,838		6,981
Forgivable loans, net	7,756		7,452
Prepaid expenses	6,439		6,769
Secured loan receivables	2,975		2,975
Other	7,621		9,773
Total other assets	$	77,424	$	54,834

Note 9Short-Term Financing

	Outstanding Balance				Weighted Average Interest Rate
	March 31,		December 31,		March 31,		December 31,
(Dollars in thousands)	2018		2017		2018		2017
Commercial paper (secured)	$	49,970	$	49,974	2.70	%	2.32	%
Prime broker arrangements	136,284		239,963		2.50	%	2.23	%
Total short-term financing	$	186,254	$	289,937

The Company issues secured commercial paper to fund a portion of its securities inventory. The commercial paper notes ("CP Notes") can be issued with maturities of 27 days to 270 days from the date of issuance. The CP Notes are currently issued under two separate programs, CP Series A and CP Series II A, and are secured by different inventory classes. As of March 31, 2018, the weighted average maturity of outstanding CP Notes was 8 days. The CP Notes are interest bearing or sold at a discount to par with an interest rate based on LIBOR plus an applicable margin. CP Series II A includes a covenant that requires the Company's U.S. broker dealer subsidiary to maintain excess net capital of $100 million.

The Company has established arrangements to obtain financing with prime brokers related to its municipal bond fund and convertible securities. Financing under these arrangements is primarily secured by municipal and convertible securities, and collateral limitations could reduce the amount of funding available under the arrangements. Prime broker financing activities are recorded net of receivables from trading activity. The funding is at the discretion of the prime brokers subject to a notice period.

The Company has both committed and uncommitted short-term bank line financing available on a secured basis. The Company uses these credit facilities in the ordinary course of business to fund a portion of its daily operations and the amount borrowed under these credit facilities varies daily based on the Company's funding needs.

The Company's committed short-term bank line financing at March 31, 2018 consisted of a one-year $200 million committed revolving credit facility with U.S. Bank, N.A., which was renewed in December 2017. Advances under this facility are secured by certain marketable securities. The facility includes a covenant that requires the Company's U.S. broker dealer subsidiary to maintain minimum net capital of $120 million, and the unpaid principal amount of all advances under this facility will be due on December 14, 2018. The Company pays a nonrefundable commitment fee on the unused portion of the facility on a quarterly basis. At March 31, 2018, the Company had no advances against this line of credit.

The Company's uncommitted secured line at March 31, 2018 totaled $85 million and is dependent on having appropriate collateral, as determined by the bank agreement, to secure an advance under the line. The availability of the Company's uncommitted line is subject to approval by the bank each time an advance is requested and may be denied. At March 31, 2018, the Company had no advances against this line of credit.

24

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Note 10Contingencies, Commitments and Guarantees

The Company has been named as a defendant in various legal actions, including complaints and litigation and arbitration claims, arising from its business activities. Such actions include claims related to securities brokerage and investment banking activities, and certain class actions that primarily allege violations of securities laws and seek unspecified damages, which could be substantial. Also, the Company is involved from time to time in investigations and proceedings by governmental agencies and self-regulatory organizations ("SROs") which could result in adverse judgments, settlement, penalties, fines or other relief.

The Company has established reserves for potential losses that are probable and reasonably estimable that may result from pending and potential legal actions, investigations and regulatory proceedings. Reasonably possible losses in excess of amounts accrued at March 31, 2018 are not material. In many cases, however, it is inherently difficult to determine whether any loss is probable or even possible or to estimate the amount or range of any potential loss, particularly where proceedings may be in relatively early stages or where plaintiffs are seeking substantial or indeterminate damages. Matters frequently need to be more developed before a loss or range of loss can reasonably be estimated.

Given uncertainties regarding the timing, scope, volume and outcome of pending and potential legal actions, investigations and regulatory proceedings and other factors, the amounts of reserves and ranges of reasonably possible losses are difficult to determine and of necessity subject to future revision. Subject to the foregoing, management of the Company believes, based on currently available information, after consultation with outside legal counsel and taking into account its established reserves, that pending legal actions, investigations and regulatory proceedings will be resolved with no material adverse effect on the consolidated statements of financial condition, results of operations or cash flows of the Company. However, if during any period a potential adverse contingency should become probable or resolved for an amount in excess of the established reserves, the results of operations and cash flows in that period and the financial condition as of the end of that period could be materially adversely affected. In addition, there can be no assurance that material losses will not be incurred from claims that have not yet been brought to the Company's attention or are not yet determined to be reasonably possible.

Operating Lease Commitments

The Company leases office space throughout the United States and in a limited number of foreign countries where the Company's international operations reside. Aggregate minimum lease commitments under operating leases as of March 31, 2018 are as follows:

(Dollars in thousands)
Remainder of 2018	$	11,352
2019	13,748
2020	13,569
2021	9,245
2022	7,902
Thereafter	22,859
Total	$	78,675

Investment Commitments

As of March 31, 2018, the Company had commitments to invest approximately $80.3 million in limited partnerships or limited liability companies that make direct or indirect equity or debt investments in companies or provide financing for senior living facilities.

25

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Note 11Shareholders' Equity

Share Repurchases

Effective September 30, 2017, the Company's board of directors authorized the repurchase of up to $150.0 million in common shares through September 30, 2019. No repurchases have been made in conjunction with this authorization through March 31, 2018.

Effective August 14, 2015, the Company's board of directors authorized the repurchase of up to $150.0 million in common shares through September 30, 2017. During the three months ended March 31, 2017, the Company repurchased 27,530 shares at an average price of $72.63 per share for an aggregate purchase price of $2.0 million related to this authorization.

The Company also purchases shares of common stock from restricted stock award recipients upon the award vesting as recipients sell shares to meet their employment tax obligations. The Company purchased 187,860 shares and 230,097 shares, or $16.8 million and $17.8 million of the Company's common stock for this purpose during the three months ended March 31, 2018 and 2017, respectively.

Issuance of Shares

The Company issues common shares out of treasury stock as a result of employee restricted share vesting and exercise transactions as discussed in Note 12. During the three months ended March 31, 2018 and 2017, the Company issued 574,594 shares and 650,155 shares, respectively, related to these obligations.

Dividends

Beginning in 2017, the Company initiated the payment of a quarterly cash dividend to holders of its common stock, which includes unvested restricted shares. In addition, the Company's board of directors approved a dividend policy with the intention of returning a metric based on net income from the previous fiscal year. This includes an annual special cash dividend, payable in the first quarter of each year, beginning in 2018.

During the three months ended March 31, 2018, the Company declared and paid both a quarterly and annual special cash dividend on its common stock of $0.375 and $1.62 per share, respectively, totaling $30.6 million.

On April 27, 2018, the board of directors declared a cash dividend of $0.375 per share to be paid on June 15, 2018, to shareholders of record as of the close of business on May 25, 2018.

Noncontrolling Interests

The consolidated financial statements include the accounts of Piper Jaffray Companies, its wholly owned subsidiaries and other entities in which the Company has a controlling financial interest. Noncontrolling interests represent equity interests in consolidated entities that are not attributable, either directly or indirectly, to Piper Jaffray Companies. Noncontrolling interests include the minority equity holders' proportionate share of the equity in merchant banking funds of $41.8 million and a senior living fund aggregating $5.2 million as of March 31, 2018. As of December 31, 2017, noncontrolling interests included the minority equity holders' proportionate share of the equity in merchant banking funds of $42.7 million and a senior living fund aggregating $5.2 million.

Ownership interests in entities held by parties other than the Company's common shareholders are presented as noncontrolling interests within shareholders' equity, separate from the Company's own equity. Revenues, expenses and net income or loss are reported on the consolidated statements of operations on a consolidated basis, which includes amounts attributable to both the Company's common shareholders and noncontrolling interests. Net income or loss is then allocated between the Company and noncontrolling interests based upon their relative ownership interests. Net income applicable to noncontrolling interests is deducted from consolidated net income to determine net income applicable to the Company. There was no other comprehensive income or loss attributed to noncontrolling interests for the three months ended March 31, 2018 and 2017, respectively.

26

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

The following table presents the changes in shareholders' equity for the three months ended March 31, 2018:

	Common		Common						Total
	Shares		Shareholders'			Noncontrolling			Shareholders'
(Amounts in thousands, except share amounts)	Outstanding		Equity			Interests			Equity
Balance at December 31, 2017	12,911,149		$	693,332		$	47,903		$	741,235
Net income	—		10,603			16			10,619
Dividends	—		(30,575		)	—			(30,575		)
Amortization/issuance of restricted stock	—		34,416			—			34,416
Issuance of treasury shares for restricted stock vestings	574,594		—			—			—
Repurchase of common stock for employee tax withholding	(187,860	)	(16,797		)	—			(16,797		)
Shares reserved/issued for director compensation	942		81			—			81
Other comprehensive income	—		529			—			529
Cumulative effect upon adoption of new accounting standard, net of tax (1)	—		(3,597		)	—			(3,597		)
Fund capital distributions, net	—		—			(904		)	(904		)
Balance at March 31, 2018	13,298,825		$	687,992		$	47,015		$	735,007

(1) Cumulative effect adjustment upon adoption of ASU 2014-09, as amended. See Note 2 for further discussion.

27

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Note 12Compensation Plans

Stock-Based Compensation Plans

The Company maintains two stock-based compensation plans, the Piper Jaffray Companies Amended and Restated 2003 Annual and Long-Term Incentive Plan (the "Incentive Plan") and the 2016 Employment Inducement Award Plan (the "Inducement Plan"). The Company's equity awards are recognized on the consolidated statements of operations at grant date fair value over the service period of the award, less forfeitures.

The following table provides a summary of the Company's outstanding equity awards (in shares or units) as of March 31, 2018:

Incentive Plan
Restricted Stock
Annual grants	666,665
Sign-on grants	216,105
	882,770
Inducement Plan
Restricted Stock	260,231
Total restricted stock related to compensation	1,143,001
Simmons Deal Consideration (1)	783,529
Total restricted stock outstanding	1,926,530
Incentive Plan
Restricted Stock Units
Leadership grants	298,568
Incentive Plan
Stock Options	81,667

(1) The Company issued restricted stock with service conditions as part of deal consideration for the acquisition of Simmons & Company International ("Simmons") on February 26, 2016.

Incentive Plan

The Incentive Plan permits the grant of equity awards, including restricted stock, restricted stock units and non-qualified stock options, to the Company's employees and directors for up to 8.2 million shares of common stock (0.7 million shares remained available for future issuance under the Incentive Plan as of March 31, 2018). The Company believes that such awards help align the interests of employees and directors with those of shareholders and serve as an employee retention tool. The Incentive Plan provides for accelerated vesting of awards if there is a severance event, a change in control of the Company (as defined in the Incentive Plan), in the event of a participant's death, and at the discretion of the compensation committee of the Company's board of directors.

Restricted Stock Awards

Restricted stock grants are valued at the market price of the Company's common stock on the date of grant and are amortized over the requisite service period. The Company grants shares of restricted stock to employees as part of year-end compensation ("Annual Grants") and upon initial hiring or as a retention award ("Sign-on Grants").

The Company's Annual Grants are made each year in February. Annual Grants vest ratably over three years in equal installments. The Annual Grants provide for continued vesting after termination of employment, so long as the employee does not violate certain post-termination restrictions set forth in the award agreement or any agreements entered into upon termination. The Company determined the service inception date precedes the grant date for the Annual Grants, and that the post-termination restrictions do not meet the criteria for an in-substance service condition, as defined by FASB Accounting Standards Codification Topic 718,

28

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

"Compensation — Stock Compensation." Accordingly, restricted stock granted as part of the Annual Grants is expensed in the one-year period in which those awards are deemed to be earned, which is generally the calendar year preceding the February grant date. For example, the Company recognized compensation expense during fiscal 2017 for its February 2018 Annual Grant. If an equity award related to the Annual Grants is forfeited as a result of violating the post-termination restrictions, the lower of the fair value of the award at grant date or the fair value of the award at the date of forfeiture is recorded within the consolidated statements of operations as a reversal of compensation expense.

Sign-on Grants are used as a recruiting tool for new employees and are issued to current employees as a retention tool. These awards have both cliff and ratable vesting terms, and the employees must fulfill service requirements in exchange for rights to the awards. Compensation expense is amortized on a straight-line basis from the grant date over the requisite service period, generally one to five years. Employees forfeit unvested shares upon termination of employment and a reversal of compensation expense is recorded.

Annually, the Company grants stock to its non-employee directors. The stock-based compensation paid to non-employee directors is fully expensed on the grant date and included within outside services expense on the consolidated statements of operations.

Restricted Stock Units

The Company grants restricted stock units to its leadership team ("Leadership Grants").

2018 and 2017 Leadership Grants

Restricted stock units granted in 2018 and 2017 will vest and convert to shares of common stock at the end of each 36-month performance period only if the Company satisfies predetermined performance and/or market conditions over the performance period. Under the terms of these awards, the number of units that will actually vest and convert to shares will be based on the extent to which the Company achieves specified targets during each performance period. The maximum payout leverage under these grants is 150 percent.

Up to 75 percent of the award can be earned based on the Company achieving certain average adjusted return on equity targets, as defined in the terms of the award agreements. The fair value of this portion of the award was based on the closing price of the Company's common stock on the grant date. If the Company determines that it is probable that the performance condition will be achieved, compensation expense is amortized on a straight-line basis over the 36-month performance period. The probability that the performance condition will be achieved is reevaluated each reporting period with changes in estimated outcomes accounted for using a cumulative effect adjustment to compensation expense. Compensation expense will be recognized only if the performance condition is met. Employees forfeit unvested restricted stock units upon termination of employment with a corresponding reversal of compensation expense. As of March 31, 2018, the Company has determined that the performance condition is probable of achieving 50 percent of the 2018 award and 75 percent of the 2017 award.

Up to 75 percent of the award can be earned based on the Company's total shareholder return relative to members of a predetermined peer group. The market condition must be met for the awards to vest and compensation cost will be recognized regardless if the market condition is satisfied. Compensation expense is amortized on a straight-line basis over the 36-month requisite service period. Employees forfeit unvested restricted stock units upon termination of employment with a corresponding reversal of compensation expense. For this portion of the awards, the fair value on the grant date was determined using a Monte Carlo simulation with the following assumptions:

	Risk-free	Expected Stock
Grant Year	Interest Rate	Price Volatility
2018	2.40%	34.8%
2017	1.62%	35.9%

29

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Because the market condition portion of the awards vesting depend on the Company's total shareholder return relative to a peer group, the valuation modeled the performance of the peer group as well as the correlation between the Company and the peer group. The expected stock price volatility assumptions were determined using historical volatility, as correlation coefficients can only be developed through historical volatility. The risk-free interest rates were determined based on three-year U.S. Treasury bond yields.

In the fourth quarter of 2017, the compensation committee of the Company's board of directors included defined retirement provisions in its Leadership Grants, beginning with the February 2018 grant. Certain grantees meeting defined age and service requirements will be fully vested in the awards as long as performance and post-termination obligations are met throughout the performance period. These retirement-eligible grants are expensed in the period in which those awards are deemed to be earned, which is the calendar year preceding the February grant date. For example, the Company recognized compensation expense for retirement-eligible grantees in fiscal 2017 for its February 2018 Leadership Grant.

Leadership Grants Prior to 2017

Restricted stock units granted prior to 2017 contain market condition criteria and will vest and convert to shares of common stock at the end of each 36-month performance period only if the Company's stock performance satisfies predetermined market conditions over the performance period. Under the terms of the grants, the number of units that will vest and convert to shares will be based on the Company's stock performance achieving specified targets during each performance period. Compensation expense is recognized over each 36-month performance period.

Up to 50 percent of these awards can be earned based on the Company's total shareholder return relative to members of a predetermined peer group and up to 50 percent of the awards can be earned based on the Company's total shareholder return. The fair value of the awards on the grant date was determined using a Monte Carlo simulation with the following assumptions pursuant to the methodology above:

	Risk-free	Expected Stock
Grant Year	Interest Rate	Price Volatility
2016	0.98%	34.9%
2015	0.90%	29.8%

Stock Options

On February 15, 2018, the Company granted options to certain executive officers. These options are expensed on a straight-line basis over the required service period of five years, based on the estimated fair value of the award on the date of grant. The exercise price per share is equal to the closing price on the date of grant plus ten percent. These options are subject to graded vesting, beginning on the third anniversary of the grant date, so long as the employee remains continuously employed by the Company. The maximum term of these stock options is ten years.

The fair value of this stock option award was estimated on the date of grant using the Black-Scholes option-pricing model with the following assumptions:

Risk-free interest rate	2.82%
Dividend yield	3.22%
Expected stock price volatility	37.20%
Expected life of options (in years)	7.0
Fair value of options granted	$24.49

The risk-free interest rate assumption was based on the U.S. Treasury bond yield with a maturity equal to the expected life of the options. The dividend yield assumption was based on the assumed dividend payout over the expected life of the options. The expected stock price volatility assumption was determined using historical volatility, as correlation coefficients can only be developed through historical volatility.

30

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Inducement Plan

The Company established the Inducement Plan in conjunction with the acquisition of Simmons. The Company granted $11.6 million (286,776 shares) in restricted stock under the Inducement Plan on May 16, 2016. These shares cliff vest on May 16, 2019. Inducement Plan awards are amortized as compensation expense on a straight-line basis over the vesting period. Employees forfeit unvested Inducement Plan shares upon termination of employment and a reversal of compensation expense is recorded.

Stock-Based Compensation Activity

The Company recorded stock-based compensation expense of $8.9 million and $0.1 million for the three months ended March 31, 2018 and 2017, respectively. Forfeitures were immaterial for the three months ended March 31, 2018, and $1.7 million for the three months ended March 31, 2017. The tax benefit related to stock-based compensation expense totaled $1.2 million for the three months ended March 31, 2018, and tax expense totaled $0.6 million for the three months ended March 31, 2017.

The following table summarizes the changes in the Company's unvested restricted stock:

	Unvested		Weighted Average
	Restricted Stock		Grant Date
	(in Shares)		Fair Value
December 31, 2017	2,225,617		$	46.40
Granted	276,437		90.00
Vested	(574,594	)	50.58
Canceled	(930	)	35.86
March 31, 2018	1,926,530		$	51.41

The following table summarizes the changes in the Company's unvested restricted stock units:

	Unvested	Weighted Average
	Restricted	Grant Date
	Stock Units	Fair Value
December 31, 2017	244,772	$	27.89
Granted	53,796	92.93
Vested	—	—
Canceled	—	—
March 31, 2018	298,568	$	39.61

As of March 31, 2018, there was $18.5 million of total unrecognized compensation cost related to restricted stock and restricted stock units expected to be recognized over a weighted average period of 1.2 years.

The following table summarizes the changes in the Company's outstanding stock options:

				Weighted Average
		Weighted		Remaining
	Options	Average		Contractual Term	Aggregate
	Outstanding	Exercise Price		(in Years)	Intrinsic Value
December 31, 2017	—	$	—	0.0	$	—
Granted	81,667	99.00
Exercised	—	—
Canceled	—	—
March 31, 2018	81,667	$	99.00	9.9	$	—

As of March 31, 2018, there was $2.0 million of unrecognized compensation cost related to stock options expected to be recognized over a weighted average period of 4.9 years. There were no options exercised during the three months ended March 31, 2018.

31

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Acquisition-related Compensation Arrangements

The Company entered into acquisition-related compensation arrangements with certain employees for retention purposes. Additional cash compensation may be available to certain investment banking employees subject to exceeding an investment banking revenue threshold during the three year Simmons post-acquisition period to the extent they are employed by the Company at the time of payment. Amounts estimated to be payable related to this performance award plan will be recorded as compensation expense on the consolidated statements of operations over the requisite performance period of three years. As of March 31, 2018, the Company had accrued $35.1 million related to this performance award plan, of which $4.3 million and $1.3 million was recorded as compensation expense for the three months ended March 31, 2018 and 2017, respectively.

Deferred Compensation Plans

The Company maintains various deferred compensation arrangements for employees.

The nonqualified deferred compensation plan is an unfunded plan which allows certain highly compensated employees, at their election, to defer a percentage of their base salary, commissions and/or cash bonuses. The deferrals vest immediately and are non-forfeitable. The amounts deferred under this plan are held in a grantor trust. The Company invests, as a principal, in investments to economically hedge its obligation under the nonqualified deferred compensation plan. Investments in the grantor trust, consisting of mutual funds, totaled $32.1 million and $31.5 million as of March 31, 2018 and December 31, 2017, respectively, and are included in investments on the consolidated statements of financial condition. The compensation deferred by the employees is expensed in the period earned. The deferred compensation liability was $32.2 million and $31.6 million as of March 31, 2018 and December 31, 2017, respectively. Changes in the fair value of the investments made by the Company are reported in investment income and changes in the corresponding deferred compensation liability are reflected as compensation and benefits expense on the consolidated statements of operations. On August 9, 2017, the Company's board of directors approved the discontinuance of future deferral elections by participants for performance periods beginning after December 31, 2017.

The Piper Jaffray Companies Mutual Fund Restricted Share Investment Plan is a fully funded deferred compensation plan which allows eligible employees to elect to receive a portion of the incentive compensation they would otherwise receive in the form of restricted stock, instead in restricted mutual fund shares ("MFRS Awards") of investment funds. MFRS Awards are awarded to qualifying employees in February of each year, and represent a portion of their compensation for performance in the preceding year similar to the Company's Annual Grants. MFRS Awards vest ratably over three years in equal installments and provide for continued vesting after termination of employment so long as the employee does not violate certain post-termination restrictions set forth in the award agreement or any agreement entered into upon termination. Forfeitures are recorded as a reduction of compensation and benefits expense within the consolidated statements of operations. MFRS Awards are owned by employee recipients (subject to aforementioned vesting restrictions) and as such are not included on the consolidated statements of financial condition.

The Company has also granted MFRS Awards to new employees as a recruiting tool. Employees must fulfill service requirements in exchange for rights to the awards. Compensation expense from these awards are amortized on a straight-line basis over the requisite service period of two to five years.

32

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Note 13Earnings Per Share ("EPS")

The Company calculates earnings per share using the two-class method. Basic earnings per common share is computed by dividing net income applicable to Piper Jaffray Companies' common shareholders by the weighted average number of common shares outstanding for the period. Net income applicable to Piper Jaffray Companies' common shareholders represents net income applicable to Piper Jaffray Companies reduced by the allocation of earnings to participating securities. No allocation of undistributed earnings is made for periods in which a loss is incurred, or for periods in which cash dividends exceed net income resulting in an undistributed loss. Distributed earnings (e.g., dividends) are allocated to participating securities. All of the Company's unvested restricted shares are deemed to be participating securities as they are eligible to share in the profits (e.g., receive dividends) of the Company. The Company's restricted stock units are not participating securities as they are not eligible to receive dividends, or the dividends are forfeitable until vested. Diluted earnings per common share is calculated by adjusting the weighted average outstanding shares to assume conversion of all potentially dilutive stock options and restricted stock units.

The computation of earnings per share is as follows:

	Three Months Ended
	March 31,
(Amounts in thousands, except per share data)	2018				2017
Net income applicable to Piper Jaffray Companies	$	10,603			$	20,275
Earnings allocated to participating securities (1)	(4,168		)		(3,447		)
Net income applicable to Piper Jaffray Companies' common shareholders (2)	$	6,435			$	16,828
Shares for basic and diluted calculations:
Average shares used in basic computation	13,096				12,594
Stock options	—				1
Restricted stock units	286				327
Average shares used in diluted computation	13,382			(3)	12,922
Earnings per common share:
Basic	$	0.47			$	1.33
Diluted	$	0.47		(3)	$	1.31

(1) Represents the allocation of distributed and undistributed earnings to participating securities. No allocation of undistributed earnings is made for periods in which a loss is incurred, or for periods in which cash dividends exceed net income resulting in an undistributed loss. Distributed earnings (e.g., dividends) are allocated to participating securities. Participating securities include all of the Company's unvested restricted shares. The weighted average participating shares outstanding were 2,089,155 and 2,630,742 for the three months ended March 31, 2018 and 2017, respectively.

(2) Net income applicable to Piper Jaffray Companies' common shareholders for diluted and basic EPS may differ under the two-class method as a result of adding the effect of the assumed exercise of stock options and restricted stock units to dilutive shares outstanding, which alters the ratio used to allocate earnings to Piper Jaffray Companies' common shareholders and participating securities for purposes of calculating diluted and basic EPS.

(3) Earnings per diluted common share is calculated using the basic weighted average number of common shares outstanding for periods in which a loss is incurred, or for periods in which cash dividends exceed net income resulting in an undistributed loss. Common shares of 1,926,530 were excluded from diluted EPS at March 31, 2018, as the Company had an undistributed loss for the period.

The anti-dilutive effects from stock options and restricted stock units were immaterial for the three months ended March 31, 2018 and 2017, respectively.

33

Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Note 14Segment Reporting

Basis for Presentation

The Company structures its segments primarily based upon the nature of the financial products and services provided to customers and the Company's management organization. The Company evaluates performance and allocates resources based on segment pre-tax operating income or loss and segment pre-tax operating margin. Revenues and expenses directly associated with each respective segment are included in determining their operating results. Other revenues and expenses that are not directly attributable to a particular segment are allocated based upon the Company's allocation methodologies, including each segment's respective net revenues, use of shared resources, headcount or other relevant measures. Segment assets are based on those directly associated with each segment, and include an allocation of certain assets based on the most relevant measures applicable, including headcount and other factors. The substantial majority of the Company's net revenues and long-lived assets are located in the U.S.

Reportable segment financial results are as follows:

	Three Months Ended
	March 31,
(Dollars in thousands)	2018			2017
Capital Markets
Investment banking
Advisory services	$	75,329		$	92,882
Financing
Equities	37,642			23,382
Debt	7,686			16,408
Total investment banking	120,657			132,672
Institutional sales and trading
Equities	18,006			20,106
Fixed income	16,334			23,240
Total institutional sales and trading	34,340			43,346
Management and performance fees	1,388			1,997
Investment income	3,298			10,508
Long-term financing expenses	(1,787		)	(2,238		)
Net revenues	157,896			186,285
Operating expenses (1)	148,860			164,060
Segment pre-tax operating income	$	9,036		$	22,225
Segment pre-tax operating margin	5.7		%	11.9		%
Continued on next page

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Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

	Three Months Ended
	March 31,
(Dollars in thousands)	2018			2017
Asset Management
Management and performance fees
Management fees	$	11,193		$	14,010
Performance fees	8			—
Total management and performance fees	11,201			14,010
Investment income/(loss)	(35		)	234
Net revenues	11,166			14,244
Operating expenses (1)	12,164			13,660
Segment pre-tax operating income/(loss)	$	(998	)	$	584
Segment pre-tax operating margin	(8.9		)%	4.1		%
Total
Net revenues	$	169,062		$	200,529
Operating expenses	161,024			177,720
Pre-tax operating income	$	8,038		$	22,809
Pre-tax operating margin	4.8		%	11.4		%

(1)Operating expenses include intangible asset amortization as set forth in the table below:

	Three Months Ended
	March 31,
(Dollars in thousands)	2018		2017
Capital Markets	$	1,214	$	2,544
Asset Management	1,401		1,278
Total intangible asset amortization	$	2,615	$	3,822

Reportable segment assets are as follows:

	March 31,		December 31,
(Dollars in thousands)	2018		2017
Capital Markets	$	1,495,768	$	1,933,050
Asset Management	81,598		91,633
Total assets	$	1,577,366	$	2,024,683

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Piper Jaffray Companies

Notes to the Consolidated Financial Statements

(Unaudited)

Note 15Net Capital Requirements and Other Regulatory Matters

Piper Jaffray is registered as a securities broker dealer with the SEC and is a member of various SROs and securities exchanges. The Financial Industry Regulatory Authority, Inc. ("FINRA") serves as Piper Jaffray's primary SRO. Piper Jaffray is subject to the uniform net capital rule of the SEC and the net capital rule of FINRA. Piper Jaffray has elected to use the alternative method permitted by the SEC rule which requires that it maintain minimum net capital of $1.0 million. Advances to affiliates, repayment of subordinated debt, dividend payments and other equity withdrawals by Piper Jaffray are subject to certain approvals, notifications and other provisions of SEC and FINRA rules.

At March 31, 2018, net capital calculated under the SEC rule was $185.8 million, and exceeded the minimum net capital required under the SEC rule by $184.8 million.

The Company's committed short-term credit facility and its senior notes include covenants requiring Piper Jaffray to maintain minimum net capital of $120 million. CP Notes issued under CP Series II A include a covenant that requires Piper Jaffray to maintain excess net capital of $100 million. The Company's fully disclosed clearing agreement with Pershing also includes a covenant requiring Piper Jaffray to maintain excess net capital of $120 million.

Piper Jaffray Ltd., a broker dealer subsidiary registered in the United Kingdom, is subject to the capital requirements of the Prudential Regulation Authority and the Financial Conduct Authority. As of March 31, 2018, Piper Jaffray Ltd. was in compliance with the capital requirements of the Prudential Regulation Authority and the Financial Conduct Authority.

Piper Jaffray Hong Kong Limited is licensed by the Hong Kong Securities and Futures Commission, which is subject to the liquid capital requirements of the Securities and Futures (Financial Resources) Rule promulgated under the Securities and Futures Ordinance. At March 31, 2018, Piper Jaffray Hong Kong Limited was in compliance with the liquid capital requirements of the Hong Kong Securities and Futures Commission.

Note 16Income Taxes

The Company recorded an income tax benefit of $2.6 million and $0.4 million for the three months ended March 31, 2018 and 2017, respectively. Income tax expense was reduced by a tax benefit of $5.0 million and $7.0 million for the three months ended March 31, 2018 and 2017, respectively, related to stock-based compensation awards vesting at values greater than the grant price.

SEC Staff Accounting Bulletin No. 118, "Income Tax Accounting Implications of the Tax Cuts and Jobs Act" ("SAB 118") permitted companies to report a provisional amount in the financial statements if the accounting for income tax effects of the Tax Cuts and Jobs Act was incomplete as of December 31, 2017. This provisional amount would be subject to adjustment during a defined measurement period.  Pursuant to SAB 118, the Company recorded an additional $1.0 million of income tax expense for the three months ended March 31, 2018.

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ITEM 2. MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.

The following information should be read in conjunction with the accompanying unaudited consolidated financial statements and related notes and exhibits included elsewhere in this report. Certain statements in this report may be considered forward-looking. Statements that are not historical or current facts, including statements about beliefs and expectations, are forward-looking statements. These forward-looking statements include, among other things, statements other than historical information or statements of current condition and may relate to our future plans and objectives and results, and also may include our belief regarding the effect of various legal proceedings, as set forth under "Legal Proceedings" in Part I, Item 3 of our Annual Report on Form 10-K for the year ended December 31, 2017 and in our subsequent reports filed with the SEC. Forward-looking statements involve inherent risks and uncertainties, and important factors could cause actual results to differ materially from those anticipated, including those factors discussed below under "External Factors Impacting Our Business" as well as the factors identified under "Risk Factors" in Part I, Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2017, as updated in our subsequent reports filed with the SEC and under "Risk Factors" in Part II, Item 1A of this Quarterly Report on Form 10-Q. These reports are available at our Web site at www.piperjaffray.com and at the SEC Web site at www.sec.gov. Forward-looking statements speak only as of the date they are made, and we undertake no obligation to update them in light of new information or future events.

Explanation of Non-GAAP Financial Measures

We have included financial measures that are not prepared in accordance with U.S. generally accepted accounting principles ("GAAP"). These non-GAAP financial measures include adjustments to exclude (1) revenues and expenses related to noncontrolling interests, (2) amortization of intangible assets related to acquisitions, (3) compensation and non-compensation expenses from acquisition-related agreements, (4) the impact from remeasuring deferred tax assets resulting from changes to the U.S. federal tax code and (5) the impact of the annual special cash dividend paid in the first quarter of 2018 resulting in an undistributed loss on earnings per diluted common share. These adjustments affect the following financial measures: net revenues, compensation expenses, non-compensation expenses, income tax benefit, net income applicable to Piper Jaffray Companies, earnings per diluted common share, return on average common shareholders' equity, segment net revenues, segment operating expenses, segment pre-tax operating income/(loss) and segment pre-tax operating margin. Management believes that presenting these results and measures on an adjusted basis in conjunction with the corresponding U.S. GAAP measures provides the most meaningful basis for comparison of our operating results across periods, and enhances the overall understanding of our current financial performance by excluding certain items that may not be indicative of our core operating results. The non-GAAP financial measures should be considered in addition to, not as a substitute for, measures of financial performance prepared in accordance with U.S. GAAP.

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Executive Overview

Our business principally consists of providing investment banking, institutional brokerage, asset management and related financial services to corporations, private equity groups, public entities, non-profit entities and institutional investors in the United States and Europe. We operate through two reportable business segments: Capital Markets and Asset Management. Refer to our Annual Report on Form 10-K for the year ended December 31, 2017 for a full description of our business, including our strategic growth initiatives.

Financial Highlights

	Three Months Ended
(Amounts in thousands, except per share data)	Mar. 31,		Mar. 31,		Percent
	2018		2017		Inc/(Dec)
U.S. GAAP
Net revenues	$	169,062	$	200,529	(15.7	)%
Compensation and benefits expenses	115,170		134,378		(14.3	)
Non-compensation expenses	45,854		43,342		5.8
Net income applicable to Piper Jaffray Companies	10,603		20,275		(47.7	)
Earnings per diluted common share	$	0.47	$	1.31	(64.1	)
Non-GAAP(1)
Adjusted net revenues	$	168,143	$	196,632	(14.5	)%
Adjusted compensation and benefits expenses	104,966		126,477		(17.0	)
Adjusted non-compensation expenses	42,167		38,466		9.6
Adjusted net income applicable to Piper Jaffray Companies	21,322		27,481		(22.4	)
Adjusted earnings per diluted common share	$	1.38	$	1.77	(22.0	)

N/M – Not meaningful

For the three months ended March 31, 2018

• Net revenues were down 15.7 percent from the year-ago period as increased equity financing revenues were more than offset by decreased revenues in our other businesses. Our results reflect the variability in advisory services revenues and challenging market conditions for our municipal-related businesses.

• Compensation and benefits expenses decreased 14.3 percent compared with the prior-year period due to lower compensation expenses resulting from decreased revenues.

• Non-compensation expenses, up 5.8 percent compared to the year-ago period, include $5.1 million of deal-related expenses in the first quarter of 2018. This reflects the adoption of new revenue recognition accounting guidance which required the presentation of investment banking deal expenses on a gross basis on the consolidated statements of operations, rather than the previous presentation of netting deal expenses within revenues. Excluding this change, non-compensation expenses were $40.8 million, down 5.9 percent compared to the first quarter of 2017, reflecting our focus on cost management. See further discussion on this change within the "Results of Operations" section below.

• For the three months ended March 31, 2018 and 2017, we recorded a tax benefit of $5.0 million and $7.0 million, respectively, related to restricted stock vesting at values greater than the grant price. The tax benefit increased earnings per diluted common share by $0.39 in the first quarter of2018, compared with $0.45 in the first quarter of2017.

• For the twelve months ended March 31, 2018, our rolling twelve month return on average common shareholders' equity was a negative 9.6 percent, compared with a negative 0.5 percent for the rolling twelve months ended March 31, 2017. On an adjusted basis, we generated a rolling twelve month return on average common shareholders' equity of 13.7 percent⁽²⁾ for the twelve months ended March 31, 2018, compared with 11.5 percent⁽²⁾ for the rolling twelve months ended March 31, 2017.

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(1) Reconciliation of U.S. GAAP to adjusted non-GAAP financial information

	Three Months Ended
	March 31,
(Amounts in thousands, except per share data)	2018			2017
Net revenues:
Net revenues – U.S. GAAP basis	$	169,062		$	200,529
Adjustments:
Revenue related to noncontrolling interests	(919		)	(3,897		)
Adjusted net revenues	$	168,143		$	196,632
Compensation and benefits:
Compensation and benefits – U.S. GAAP basis	$	115,170		$	134,378
Adjustments:
Compensation from acquisition-related agreements	(10,204		)	(7,901		)
Adjusted compensation and benefits	$	104,966		$	126,477
Non-compensation expenses:
Non-compensation expenses – U.S. GAAP basis	$	45,854		$	43,342
Adjustments:
Non-compensation expenses related to noncontrolling interests	(903		)	(968		)
Amortization of intangible assets related to acquisitions	(2,615		)	(3,822		)
Non-compensation expenses from acquisition-related agreements	(169		)	(86		)
Adjusted non-compensation expenses	$	42,167		$	38,466
Net income applicable to Piper Jaffray Companies:
Net income applicable to Piper Jaffray Companies – U.S. GAAP basis	$	10,603		$	20,275
Adjustments:
Compensation from acquisition-related agreements	7,673			4,806
Amortization of intangible assets related to acquisitions	1,967			2,347
Non-compensation expenses from acquisition-related agreements	127			53
Impact of the Tax Cuts and Jobs Act legislation	952			—
Adjusted net income applicable to Piper Jaffray Companies	$	21,322		$	27,481
Earnings per diluted common share:
Earnings per diluted common share – U.S. GAAP basis	$	0.47		$	1.31
Adjustment for undistributed loss allocated to participating shares (3)	0.21			—
	0.68			1.31
Adjustments:
Compensation from acquisition-related agreements	0.50			0.31
Amortization of intangible assets related to acquisitions	0.13			0.15
Non-compensation expenses from acquisition-related agreements	0.01			—
Impact of the Tax Cuts and Jobs Act legislation	0.06			—
Adjusted earnings per diluted common share	$	1.38		$	1.77

(2) Adjusted return on average common shareholders' equity, a non-GAAP measure, is computed by dividing adjusted net income applicable to Piper Jaffray Companies for the last 12 months by average monthly common shareholders' equity. For a detailed explanation of the components of adjusted net income, see "Reconciliation of U.S. GAAP to adjusted non-GAAP financial information" in footnote (1).

(3) Piper Jaffray Companies calculates earnings per common share using the two-class method, which requires the allocation of consolidated adjusted net income between common shareholders and participating security holders, which in the case of Piper Jaffray Companies, represents unvested stock with dividend rights. No allocation of undistributed earnings is made for periods in which a loss is incurred, or for periods in which the special cash dividend exceeds adjusted net income resulting in an undistributed loss.

External Factors Impacting Our Business

Performance in the financial services industry in which we operate is highly correlated to the overall strength of economic conditions and financial market activity. Overall market conditions are a product of many factors, which are beyond our control, often unpredictable and at times inherently volatile. These factors may affect the financial decisions made by investors, including their level of participation in the financial markets. In turn, these decisions may affect our business results. With respect to financial market activity, our profitability is sensitive to a variety of factors, including the demand for investment banking services as reflected by the number and size of merger and acquisition transactions and equity and debt financings, the relative level of volatility of the equity and fixed income markets, changes in interest rates and credit spreads (especially rapid and extreme changes), overall market liquidity, the level and shape of various yield curves, the volume and value of trading in securities, overall equity valuations, and the demand for active asset management services.

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Factors that differentiate our business within the financial services industry also may affect our financial results. For example, our capital markets business focuses on specific industry sectors while serving principally middle-market clientele. If the business environment for our focus sectors is impacted adversely, our business and results of operations could reflect these impacts. In addition, our business, with its specific areas of focus and investment, may not track overall market trends. Given the variability of the capital markets and securities businesses, our earnings may fluctuate significantly from period to period, and results for any individual period should not be considered indicative of future results.

Outlook for the remainder of 2018

We expect the U.S. economy to continue to grow at a moderate pace for the remainder of 2018. The recently passed tax reform legislation, increased fiscal spending, actions to reduce regulatory costs on businesses, and broad growth across most major global economies should be supportive to growth in the U.S. Risks to this outlook include geopolitical risks or economic instability internationally, including any escalation of trade disputes, which may pose consequences for the global economy and inject periods of heightened volatility into the U.S. equity and debt markets, as experienced in the first quarter of 2018.

U.S. monetary policy will continue to impact the economy and financial markets in 2018. The U.S. Federal Reserve increased short-term interest rates again in the first quarter of 2018 as its economic outlook and confidence in the economy hitting its inflation target strengthened. Long-term interest rates, however, have not moved in step with increases in short-term interest rates resulting in a flattening of the yield curve. We anticipate that the U.S. Federal Reserve will continue to pursue a gradual and steady path to rate normalization, although this path could be slightly steeper than previously thought if the pace of inflation accelerates. A faster rise in interest rates than the market expects could trigger a sell-off in equities which may negatively impact our equity capital raising and advisory businesses.

Although we have experienced heightened volatility in early 2018, we expect conditions in the equity markets to remain constructive for our advisory and equity capital raising activities. If we experience sustained bouts of higher volatility or a material market correction, our equity brokerage business may benefit while our advisory and equity capital raising businesses may suffer. We believe our advisory services business will continue to perform well in 2018 on the strength of our market position, long-term investments and diversity in our practice. Advisory services revenues for any given quarter are impacted by the timing and size of the deals closing, which can result in fluctuations in revenues period over period.

We expect that secular challenges to our equity brokerage business, including the shift from active to passive managers, will persist for the remainder of 2018. These challenges may be exacerbated by the implementation of MiFID II, a European regulation which may be adopted by some of our U.S. clients. This regulation, which governs how buy-side clients (e.g., asset managers) pay for services performed by brokerage businesses, may lead to revenue declines for U.S brokerage businesses, and we would not be immune from this impact.

We would expect the low interest rate environment and flat yield curve to persist for the remainder of 2018. This would continue to subdue customer flow activity for our fixed income institutional brokerage business. Additionally, given our significant presence in the municipal market, negative investor sentiment towards the municipal space may adversely impact our fixed income brokerage revenues. While higher interest rates across the yield curve would be favorable to this business, the move to higher rates could adversely impact our public finance business in the short-term as the level of refunding activity eases while greater economic growth has not yet spurred a ramp in new money issuance volumes. Irrespective of the interest rate levels, we believe that municipal debt underwriting activity will be down meaningfully in 2018 compared to 2017 as some issuances were accelerated to the end of 2017 due to changes from the tax reform legislation, and also due to a lower level of refunding activity. Despite a slow start to 2018, we would expect the new issuance market to gradually improve as the year progresses, with a stronger market in the second half of 2018.

As economic growth continues we would expect rising market valuations, which would have a positive impact on our asset management business. However, market valuations may be negatively impacted by significant declines and volatility in the financial markets, as experienced in the first quarter of 2018. We further expect that active asset managers, ourselves included, will remain under pressure to create alpha for their clients and to maintain or grow AUM.

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Results of Operations

Financial Summary for the three months ended March 31, 2018 and March 31, 2017

The following table provides a summary of the results of our operations on a U.S. GAAP basis and the results of our operations as a percentage of net revenues for the periods indicated.

									As a Percentage of
									Net Revenues for the
	Three Months Ended								Three Months Ended
	March 31,								March 31,
							2018
(Dollars in thousands)	2018			2017			v2017		2018		2017
Revenues:
Investment banking	$	120,841		$	132,250		(8.6	)%	71.5	%	66.0	%
Institutional brokerage	27,645			39,136			(29.4	)	16.4		19.5
Asset management	12,589			16,007			(21.4	)	7.4		8.0
Interest	10,413			7,719			34.9		6.2		3.8
Investment income	2,912			10,375			(71.9	)	1.7		5.2
Total revenues	174,400			205,487			(15.1	)	103.2		102.5
Interest expense	5,338			4,958			7.7		3.2		2.5
Net revenues	169,062			200,529			(15.7	)	100.0		100.0
Non-interest expenses:
Compensation and benefits	115,170			134,378			(14.3	)	68.1		67.0
Outside services	8,939			10,328			(13.4	)	5.3		5.2
Occupancy and equipment	8,578			8,462			1.4		5.1		4.2
Communications	8,626			7,616			13.3		5.1		3.8
Marketing and business development	7,299			7,547			(3.3	)	4.3		3.8
Deal-related expenses	5,051			—			N/M		3.0		—
Trade execution and clearance	2,163			1,811			19.4		1.3		0.9
Intangible asset amortization	2,615			3,822			(31.6	)	1.5		1.9
Back office conversion costs	—			866			(100.0	)	—		0.4
Other operating expenses	2,583			2,890			(10.6	)	1.5		1.4
Total non-interest expenses	161,024			177,720			(9.4	)	95.2		88.6
Income before income tax benefit	8,038			22,809			(64.8	)	4.8		11.4
Income tax benefit	(2,581		)	(395		)	N/M		(1.5	)	(0.2	)
Net income	10,619			23,204			(54.2	)	6.3		11.6
Net income applicable to noncontrolling interests	16			2,929			(99.5	)	—		1.5
Net income applicable to Piper Jaffray Companies	$	10,603		$	20,275		(47.7	)	6.3	%	10.1	%

N/M – Not meaningful

For the three months ended March 31, 2018, we recorded net income applicable to Piper Jaffray Companies of $10.6 million. Net revenues for the three months ended March 31, 2018 were $169.1 million, a 15.7 percent decrease compared to $200.5 million in the year-ago period. In the first quarter of2018, investment banking revenues were $120.8 million, down 8.6 percent compared with $132.3 million in the prior-year period, as lower advisory services and debt financing revenues were partially offset by higher equity financing revenues. For the three months ended March 31, 2018, institutional brokerage revenues decreased 29.4 percent to $27.6 million, compared with $39.1 millionin the first quarter of2017, due to lower fixed income and equity institutional

41

brokerage revenues. In the first quarter of2018, asset management fees of $12.6 million were down 21.4 percent compared with $16.0 millionin the first quarter of2017 due to lower management fees from both our master limited partnership ("MLP") and equity product offerings. For the three months ended March 31, 2018, net interest income was $5.1 million, up from $2.8 million in the prior-year period. The increase was attributable to higher average inventory balances in the first quarter of 2018. We recorded investment income of $2.9 million in the first quarter of 2018, compared with $10.4 million in the prior-year period. In the first quarter of 2017, we recorded higher gains on our investment and the noncontrolling interests in the merchant banking fund that we manage, as well as higher gains on our firm investments. Non-interest expenses were $161.0 million for the three months ended March 31, 2018, down 9.4 percent compared to $177.7 million in the prior-year period, due primarily to lower compensation expenses from decreased revenues.

New Revenue Recognition Guidance

As discussed in Note 2 to our unaudited consolidated financial statements, we adopted new revenue recognition guidance effective as of January 1, 2018. The previous broker dealer industry treatment of netting deal expenses with investment banking revenues was superseded under the new guidance. As a result of adopting the new guidance, we now present investment banking revenues gross of related client reimbursed deal expenses and deal-related expenses as non-interest expenses on the consolidated statements of operations, rather than the previous presentation of netting deal expenses incurred for completed investment banking deals within revenues. This change did not impact net income, however the financial measures for the three months ended March 31, 2018 were impacted as follows:

• Higher net revenues,

• Decreased compensation ratio,

• Higher non-compensation expenses,

• Higher non-compensation ratio, and

• Lower pre-tax operating margin.

Deal-related expenses are deferred until completion of an investment banking transaction and are now reported separately on the consolidated statements of operations. For the three months ended March 31, 2018, we reported higher investment banking revenues and higher non-compensation expenses of $5.1 million, respectively, as a result of this change.

In addition, we now defer the recognition of performance fees on our merchant banking, energy and senior living alternative asset management funds until such fees are no longer subject to reversal, which will cause a delay in the recognition of these fees as revenue. With the exception of the above, our previous methods of recognizing investment banking revenues were not significantly impacted by the new guidance.

Consolidated Non-Interest Expenses

Compensation and Benefits – Compensation and benefits expenses, which are the largest component of our expenses, include salaries, incentive compensation, benefits, stock-based compensation, employment taxes, income associated with the forfeiture of stock-based compensation and other employee-related costs. A portion of compensation expense is comprised of variable incentive arrangements, including discretionary incentive compensation, the amount of which fluctuates in proportion to the level of business activity, increasing with higher revenues and operating profits. Other compensation costs, primarily base salaries and benefits, are more fixed in nature. The timing of incentive compensation payments, which generally occur in February, has a greater impact on our cash position and liquidity than is reflected on our consolidated statements of operations. We have granted restricted stock with service conditions as a component of our acquisition deal consideration, which is amortized to compensation expense over the service period.

For the three months ended March 31, 2018, compensation and benefits expenses decreased to $115.2 million, compared with $134.4 million in the corresponding period of 2017, due to lower revenues. Compensation and benefits expenses as a percentage of net revenues was 68.1 percentin the first quarter of2018, compared with 67.0 percentin the first quarter of2017. The increased compensation ratio was primarily attributable to higher acquisition-related compensation costs, which were driven by incremental compensation expenses related to a Simmons & Company International ("Simmons") performance award plan implemented at the time of acquisition.

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Outside Services – Outside services expenses include securities processing expenses, outsourced technology functions, outside legal fees, fund expenses associated with our consolidated alternative asset management funds and other professional fees. Outside services expenses decreased 13.4 percent to $8.9 millionin the first quarter of2018, compared with $10.3 million in the corresponding period of 2017. Excluding the portion of expenses from non-controlled equity interests in our consolidated alternative asset management funds, outside services expenses decreased 7.5 percent due primarily to a reduction in securities processing costs as there are services we no longer use following our migration to a fully disclosed clearing model in the third quarter of 2017.

Occupancy and Equipment – For the three months ended March 31, 2018, occupancy and equipment expenses increased slightly to $8.6 million, compared with $8.5 million for the three months ended March 31, 2017.

Communications – Communication expenses include costs for telecommunication and data communication, primarily consisting of expenses for obtaining third party market data information. For the three months ended March 31, 2018, communication expenses increased 13.3 percent to $8.6 million, compared with $7.6 million for the three months ended March 31, 2017. The increase was primarily due to higher market data services.

Marketing and Business Development – Marketing and business development expenses include travel and entertainment costs, advertising and third party marketing fees. For the three months ended March 31, 2018, marketing and business development expenses decreased slightly to $7.3 million, compared with $7.5 million in the corresponding period of 2017. The decline was attributable to lower travel expenses, partially offset by an increase in third party marketing fees associated with our asset management business.

Deal-Related Expenses – Deal-related expenses include costs we incurred over the course of a completed investment banking deal, which primarily consist of offering expenses, travel and entertainment costs and market data services. For the three months ended March 31, 2018, deal-related expenses were $5.1 million. Effective January 1, 2018, new revenue recognition guidance required us to present deal expenses on a gross basis under non-interest expenses on the consolidated statements of operations, rather than netting deal expenses incurred for completed investment banking deals within revenues. The amount of deal-related expenses for the year will principally be dependent on the level of deal activity and may vary from quarter to quarter as the recognition of deal-related costs typically coincides with the closing of a transaction. Based upon prior years' experience, we would expect approximately $20.0 million to $25.0 million of annual deal-related expenses.

Trade Execution and Clearance – For the three months ended March 31, 2018, trade execution and clearance expenses increased to $2.2 million, compared with $1.8 million in the corresponding period of 2017, due to higher trading execution expenses, partially offset by a decrease from reduced trading volumes. As a result of migrating to a fully disclosed clearing model, securities processing expenses that were previously recorded under Outside Services, are now reflected as trade execution charges due to Pershing LLC ("Pershing"), our clearing broker dealer.

Intangible Asset Amortization – Intangible asset amortization includes the amortization of definite-lived intangible assets consisting of customer relationships and the Simmons trade name. For the three months ended March 31, 2018, intangible asset amortization was $2.6 million, compared with $3.8 million in the corresponding period of 2017.

Back Office Conversion Costs – In the third quarter of 2017, we migrated to a fully disclosed clearing model and are no longer self clearing. Back office conversion costs included costs incurred to transition to a fully disclosed clearing model, such as contract termination fees, vendor migration fees, professional fees, and severance benefits for impacted personnel. For the three months ended March 31, 2017, we incurred back office conversion costs of $0.9 million.

Other Operating Expenses – Other operating expenses include insurance costs, license and registration fees, expenses related to our charitable giving program and litigation-related expenses, which consist of the amounts we reserve and/or pay out related to legal and regulatory matters. Other operating expenses decreased 10.6 percent to $2.6 millionin the first quarter of2018, compared with $2.9 millionin the first quarter of2017. The decrease was primarily due to lower expense related to our charitable giving program driven by our lower profitability.

Income Taxes– The Tax Cuts and Jobs Act reduced the corporate federal rate from 35 percent to 21 percent effective January 1, 2018. SEC Staff Accounting Bulletin No. 118, "Income Tax Accounting Implications of the Tax Cuts and Jobs Act" ("SAB 118") permitted companies to report a provisional amount in the financial statements if the accounting for income tax effects of the Tax Cuts and Jobs Act was incomplete as of December 31, 2017. This provisional amount would be subject to adjustment during a defined measurement period. 

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For the three months ended March 31, 2018, our benefit from income taxes was $2.6 million. In the first quarter of 2018, we recorded a $5.0 million tax benefit related to stock-based compensation awards vesting at values greater than grant price. Additionally, pursuant to SAB 118, the Company recorded an additional $1.0 million of income tax expense for the three months ended March 31, 2018. Excluding the impact of these two items, our effective tax rate was 18.45 percent due to the impact of tax-exempt interest income representing a larger portion of our pre-tax income.

For the three months ended March 31, 2017, our benefit from income taxes was $0.4 million. In the first quarter of 2017, we recorded a $7.0 million tax benefit related to stock-based compensation awards vesting at values greater than the grant price.

In the second quarter of 2018, we estimate recording a tax benefit of approximately $1.4 million related to performance share units vesting as values greater than the grant price.

Segment Performance

We measure financial performance by business segment. Our two reportable segments are Capital Markets and Asset Management. We determined these segments based upon the nature of the financial products and services provided to customers and our management organization. Segment pre-tax operating income and segment pre-tax operating margin are used to evaluate and measure segment performance by our chief operating decision maker in deciding how to allocate resources and in assessing performance in relation to our competitors. Revenues and expenses directly associated with each respective segment are included in determining segment operating results. Revenues and expenses that are not directly attributable to a particular segment are allocated based upon our allocation methodologies, generally based on each segment's respective net revenues, use of shared resources, headcount or other relevant measures.

Throughout this section, we have presented segment results on both a U.S. GAAP and non-GAAP basis. Management believes that presenting adjusted segment pre-tax operating income and adjusted segment pre-tax operating margin in conjunction with the U.S. GAAP measures provides a more meaningful basis for comparison of its operating results and underlying trends between periods, and enhances the overall understanding of our current financial performance by excluding certain items that may not be indicative of our core operating results. The non-GAAP segment results should be considered in addition to, not as a substitute for, the segment results prepared in accordance with U.S. GAAP.

Adjusted segment pre-tax operating income and adjusted segment pre-tax operating margin exclude (1) revenues and expenses related to noncontrolling interests, (2) amortization of intangible assets related to acquisitions and (3) compensation and non-compensation expenses from acquisition-related agreements. For U.S. GAAP purposes, these items are included in each of their respective line items on the consolidated statements of operations.

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Capital Markets

The following table sets forth the Capital Markets adjusted segment financial results and adjustments necessary to reconcile to our consolidated U.S. GAAP pre-tax operating income and pre-tax operating margin for the periods presented:

	Three Months Ended March 31,
	2018											2017
				Adjustments (1)											Adjustments (1)
	Total			Noncontrolling		Other			U.S.			Total			Noncontrolling		Other			U.S.
(Dollars in thousands)	Adjusted			Interests		Adjustments			GAAP			Adjusted			Interests		Adjustments			GAAP
Investment banking
Advisory services	$	75,329		$	—	$	—		$	75,329		$	92,882		$	—	$	—		$	92,882
Financing
Equities	37,642			—		—			37,642			23,382			—		—			23,382
Debt	7,686			—		—			7,686			16,408			—		—			16,408
Total investment banking	120,657			—		—			120,657			132,672			—		—			132,672
Institutional sales and trading
Equities	18,006			—		—			18,006			20,106			—		—			20,106
Fixed income	16,334			—		—			16,334			23,240			—		—			23,240
Total institutional sales and trading	34,340			—		—			34,340			43,346			—		—			43,346
Management and performance fees	1,388			—		—			1,388			1,997			—		—			1,997
Investment income	2,379			919		—			3,298			6,611			3,897		—			10,508
Long-term financing expenses	(1,787		)	—		—			(1,787		)	(2,238		)	—		—			(2,238		)
Net revenues	156,977			919		—			157,896			182,388			3,897		—			186,285
Operating expenses	136,370			903		11,587			148,860			152,561			968		10,531			164,060
Segment pre-tax operating income	$	20,607		$	16	$	(11,587	)	$	9,036		$	29,827		$	2,929	$	(10,531	)	$	22,225
Segment pre-tax operating margin	13.1		%						5.7		%	16.4		%						11.9		%

(1) The following is a summary of the adjustments needed to reconcile our consolidated U.S. GAAP segment pre-tax operating income and segment pre-tax operating margin to the adjusted segment pre-tax operating income and adjusted segment pre-tax operating margin:

Noncontrolling interests – The impacts of consolidating noncontrolling interests in our alternative asset management funds are not included in adjusted segment pre-tax operating income and adjusted segment pre-tax operating margin.

Other adjustments – The following table sets forth the items not included in adjusted segment pre-tax operating income and adjusted segment pre-tax operating margin for the periods presented:

	Three Months Ended March 31,
(Dollars in thousands)	2018		2017
Compensation from acquisition-related agreements	$	10,204	$	7,901
Amortization of intangible assets related to acquisitions	1,214		2,544
Non-compensation expenses from acquisition-related agreements	169		86
	$	11,587	$	10,531

Capital Markets net revenues on a U.S. GAAP basis were $157.9 million for the three months ended March 31, 2018, compared with $186.3 million in the prior-year period. For the three months ended March 31, 2018, adjusted net revenues were $157.0 million, compared with $182.4 million in the first quarter of 2017. The variance explanations for net revenues and adjusted net revenues are consistent on both a U.S. GAAP and non-GAAP basis.

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Investment banking revenues comprise all of the revenues generated through advisory services activities, which includes mergers and acquisitions, equity private placements, debt advisory, and municipal financial advisory transactions, as well as equity and debt financing activities. To assess the profitability of investment banking, we aggregate investment banking fees with the net interest income or expense associated with these activities.

In the first quarter of2018, investment banking revenues decreased 9.1 percent to $120.7 million, compared with $132.7 million in the corresponding period of the prior year. For the three months ended March 31, 2018, advisory services revenues were $75.3 million, down 18.9 percent compared to $92.9 millionin the first quarter of2017, due to lower revenue per transaction. Our advisory services revenues can be impacted by the number and size of deals, which results in fluctuations in revenues from period to period. We completed 36 transactions with an aggregate enterprise value of $5.2 billionin the first quarter of2018, compared with 29 transactions with an aggregate enterprise value of $8.4 billionin the first quarter of2017. For the three months ended March 31, 2018, equity financing revenues were $37.6 million, up 61.0 percent compared with $23.4 millionin the first quarter of2017, due to higher revenue per transaction. Despite large swings in volatility in the first quarter of 2018, market conditions were reasonably constructive for equity capital raising. The volatility did not reach levels where it disintermediated capital raising. We outperformed our target market where the overall fee pool was down compared to the prior-year period. The number of deals in which we were book runner increased approximately 13 percent compared to the first quarter of 2017. During the first quarter of2018, we completed 25 equity financings (of which eight were initial public offerings), raising $4.5 billion for our clients, compared with 27 equity financings (of which four were initial public offerings), raising $6.2 billion for our clients in the comparable year-ago period. Debt financing revenues for the three months ended March 31, 2018 were $7.7 million, down 53.2 percent compared with $16.4 million in the year-ago period, driven by a significant decline in municipal market issuance volume and activity. The decline in the current quarter primarily resulted from record municipal issuance volume in the fourth quarter of 2017 as issuers accelerated financings before the implementation of federal tax law changes in 2018. This pulled forward activity that we would have expected to occur in the first half of 2018. During the first quarter of2018, we completed 53 negotiated municipal issues with a total par value of $1.3 billion, compared with 123 negotiated municipal issues with a total par value of $3.4 billion during the prior-year period.

Institutional sales and trading revenues comprise all of the revenues generated through trading activities, which consist of facilitating customer trades, executing competitive municipal underwritings and our strategic trading activities in municipal bonds and U.S. government agency securities. To assess the profitability of institutional brokerage activities, we aggregate institutional brokerage revenues with the net interest income or expense associated with financing, economically hedging and holding long or short inventory positions. Our results may vary from quarter to quarter as a result of changes in trading margins, trading gains and losses, net interest spreads, trading volumes and the timing of transactions based on market opportunities.

For the three months ended March 31, 2018, institutional brokerage revenues were $34.3 million, a decrease of 20.8 percent compared with $43.3 million in the prior-year period, due to lower equity and fixed income institutional brokerage revenues. Equity institutional brokerage revenues were $18.0 millionin the first quarter of2018, down 10.4 percent compared with $20.1 million in the corresponding period of 2017, due to lower client trading volumes. Although equity volatility increased during the current quarter, a large percentage of the trading flow resulting from the volatility was centered in passive management vehicles where we do not compete. For the three months ended March 31, 2018, fixed income institutional brokerage revenues were $16.3 million, down 29.7 percent compared with $23.2 million in the prior-year period, due to a decline in customer flow activity and fewer trading opportunities. Industry returns for municipal bonds in the first quarter of 2018 were the worst in nearly a decade, resulting in a decline in the value of municipal securities. Also, customer demand was muted due to the impact of tax reform on the municipal asset class. As we have a meaningful presence in the municipal market, this negatively impacted our customer flow and trading results, which reduced our revenues. These unfavorable market conditions were exacerbated by low interest rates and the flat yield curve.

Management and performance fees include the fees generated from our merchant banking, energy and senior living funds with outside investors. For the three months ended March 31, 2018, management and performance fees were $1.4 million, compared with $2.0 million in the prior-year period. Upon adopting new revenue recognition guidance effective as of January 1, 2018, we now defer the recognition of performance fees on our merchant banking, energy and senior living funds until such fees are no longer subject to reversal, which will cause a delay in the recognition of these fees as revenue.

Investment income includes realized and unrealized gains and losses on investments, including amounts attributable to noncontrolling interests, in our merchant banking, energy and senior living funds, and other firm investments. For the three months ended March 31, 2018, investment income was $3.3 million compared to $10.5 million in the corresponding period of 2017. In the first quarter of 2017, we recorded higher gains on the merchant banking fund that we manage. Excluding the impact of noncontrolling interests, adjusted investment income was $2.4 million for the three months ended March 31, 2018.

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Long-term financing expenses primarily represent interest paid on our senior notes. For the three months ended March 31, 2018, long-term financing expenses decreased to $1.8 million, from $2.2 million in the prior-year period. We repaid the $50 million of Class A senior notes upon maturity on May 31, 2017.

Capital Markets segment pre-tax operating margin for the three months ended March 31, 2018 was 5.7 percent, compared with 11.9 percent for the corresponding period of 2017. Pre-tax operating margin decreased compared to the first quarter of 2017 due to lower net revenues. Adjusted segment pre-tax operating margin for the three months ended March 31, 2018 was 13.1 percent, compared with 16.4 percent for the corresponding period of 2017.

Asset Management

The following table sets forth the Asset Management segment financial results and adjustments necessary to reconcile to our consolidated U.S. GAAP pre-tax operating income and pre-tax operating margin for the periods presented:

	Three Months Ended March 31,
	2018											2017
				Adjustments (1)											Adjustments (1)
	Total			Noncontrolling		Other			U.S.			Total			Noncontrolling		Other			U.S.
(Dollars in thousands)	Adjusted			Interests		Adjustments			GAAP			Adjusted			Interests		Adjustments			GAAP
Management fees
MLP	$	6,304		$	—	$	—		$	6,304		$	7,349		$	—	$	—		$	7,349
Equity	4,889			—		—			4,889			6,661			—		—			6,661
Total management fees	11,193			—		—			11,193			14,010			—		—			14,010
Performance fees
MLP	—			—		—			—			—			—		—			—
Equity	8			—		—			8			—			—		—			—
Total performance fees	8			—		—			8			—			—		—			—
Total management and performance fees	11,201			—		—			11,201			14,010			—		—			14,010
Investment income/(loss)	(35		)	—		—			(35		)	234			—		—			234
Total net revenues	11,166			—		—			11,166			14,244			—		—			14,244
Operating expenses	10,763			—		1,401			12,164			12,382			—		1,278			13,660
Segment pre-tax operating income/(loss)	$	403		$	—	$	(1,401	)	$	(998	)	$	1,862		$	—	$	(1,278	)	$	584
Segment pre-tax operating margin	3.6		%						(8.9		)%	13.1		%						4.1		%

(1) Other Adjustments – Consists of amortization of acquisition-related intangible assets of $1.4 million and $1.3 million for the three months ended March 31, 2018 and 2017, respectively.

Management and performance fee revenues comprise the revenues generated from management and investment advisory services performed for separately managed accounts, registered funds and partnerships. Client asset inflows and outflows and investment performance have a direct effect on management and performance fee revenues. Management fees are generally based on the level of assets under management ("AUM") measured monthly or quarterly, and an increase or reduction in AUM, due to market price fluctuations or net client asset flows, will result in a corresponding increase or decrease in management fees. Fees vary with the type of assets managed and the vehicle in which they are managed. Performance fees are earned when the investment return on AUM exceeds certain benchmark targets or other performance targets over a specified measurement period. These performance fees are typically annual performance hurdles and recognized in the fourth quarter of the applicable year, or upon withdrawal of client assets. The level of performance fees earned can vary significantly from period to period and these fees may not necessarily be correlated to changes in total AUM. At March 31, 2018, approximately five percent of our AUM was eligible to earn performance fees.

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For the three months ended March 31, 2018, management fees were $11.2 million, a decrease of 20.1 percent, compared with $14.0 million in the prior-year period, due to lower management fees from both our MLP and equity product offerings. Management fees from our MLP strategies decreased 14.2 percentin the first quarter of2018 to $6.3 million, compared with $7.3 millionin the first quarter of2017 as lower average AUM was partially offset by a higher average effective revenue yield. The average effective revenue yield (total annualized management fees as a percentage of our average month-end AUM) for our MLP strategies was 68 basis points for the first quarter of 2018, compared with 63 basis points for the first quarter of 2017. In the first quarter of2018, management fees related to our equity strategies were $4.9 million, down 26.6 percent compared to $6.7 million in the corresponding period of 2017. The decrease was due to lower average AUM from net client outflows in 2017, as well as a lower average effective revenue yield. The average effective revenue yield for our equity strategies was 55 basis points for the first quarter of 2018, compared with 67 basis points for the prior-year period.

Investment income/(loss) includes gains and losses from our investments in registered funds and private funds or partnerships that we manage. We recorded investment income of $0.2 million for the three months ended March 31, 2017.

Segment pre-tax operating margin for the three months ended March 31, 2018 was a negative 8.9 percent due to declining profitability in the business. Adjusted segment pre-tax operating margin declined from 13.1 percent in the first quarter of 2017 to 3.6 percent in the first quarter of 2018.

The following table summarizes the changes in our AUM for the periods presented:

							Twelve
	Three Months Ended						Months Ended
	March 31,						March 31,
(Dollars in millions)	2018			2017			2018
MLP
Beginning of period	$	3,790		$	4,616		$	4,681
Net inflows/(outflows)	6			(21		)	(397		)
Net market appreciation/(depreciation)	(397		)	86			(885		)
End of period	$	3,399		$	4,681		$	3,399
Equity
Beginning of period	$	3,556		$	4,115		$	4,081
Net outflows	(47		)	(143		)	(907		)
Net market appreciation/(depreciation)	(31		)	109			304
End of period	$	3,478		$	4,081		$	3,478
Total
Beginning of period	$	7,346		$	8,731		$	8,762
Net outflows	(41		)	(164		)	(1,304		)
Net market appreciation/(depreciation)	(428		)	195			(581		)
End of period	$	6,877		$	8,762		$	6,877

Recent Accounting Pronouncements

Recent accounting pronouncements are set forth in Note 2 to our unaudited consolidated financial statements, and are incorporated herein by reference.

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Critical Accounting Policies

Our accounting and reporting policies comply with GAAP and conform to practices within the securities industry. The preparation of financial statements in compliance with GAAP and industry practices requires us to make estimates and assumptions that could materially affect amounts reported in our consolidated financial statements. Critical accounting policies are those policies that we believe to be the most important to the portrayal of our financial condition and results of operations and that require us to make estimates that are difficult, subjective or complex. Most accounting policies are not considered by us to be critical accounting policies. Several factors are considered in determining whether or not a policy is critical, including whether the estimates are significant to the consolidated financial statements taken as a whole, the nature of the estimates, the ability to readily validate the estimates with other information (e.g., third party or independent sources), the sensitivity of the estimates to changes in economic conditions and whether alternative accounting methods may be used under GAAP.

We believe that of our significant accounting policies, the following are our critical accounting policies:

• Valuation of Financial Instruments

• Goodwill and Intangible Assets

• Compensation Plans

• Income Taxes

See the "Critical Accounting Policies" section and Note 2, "Summary of Significant Accounting Policies" to our consolidated financial statements included in our Annual Report on Form 10-K for the year ended December 31, 2017 for further information on our critical accounting policies. See also Note 2, "Accounting Policies and Pronouncements" in the notes to our unaudited consolidated financial statements included in this Quarterly Report on Form 10-Q for changes to our significant accounting policies, as well as the impact from the adoption of new accounting standards.

Liquidity, Funding and Capital Resources

Liquidity is of critical importance to us given the nature of our business. Insufficient liquidity resulting from adverse circumstances contributes to, and may be the cause of, financial institution failure. Accordingly, we regularly monitor our liquidity position and maintain a liquidity strategy designed to enable our business to continue to operate even under adverse circumstances, although there can be no assurance that our strategy will be successful under all circumstances.

The majority of our tangible assets consist of assets readily convertible into cash. Financial instruments and other inventory positions owned are stated at fair value and are generally readily marketable in most market conditions. Receivables and payables with brokers, dealers and clearing organizations usually settle within a few days. As part of our liquidity strategy, we emphasize diversification of funding sources to the extent possible while considering tenor and cost. Our assets are financed by our cash flows from operations, equity capital, and our funding arrangements. The fluctuations in cash flows from financing activities are directly related to daily operating activities from our various businesses. One of our most important risk management disciplines is our ability to manage the size and composition of our balance sheet. While our asset base changes due to client activity, market fluctuations and business opportunities, the size and composition of our balance sheet reflect our overall risk tolerance, our ability to access stable funding sources and the amount of equity capital we hold.

Certain market conditions can impact the liquidity of our inventory positions, requiring us to hold larger inventory positions for longer than expected or requiring us to take other actions that may adversely impact our results.

A significant component of our employees' compensation is paid in annual discretionary incentive compensation. The timing of these incentive compensation payments, which generally are made in February, has a significant impact on our cash position and liquidity.

Beginning in 2017, we initiated the payment of a quarterly cash dividend to holders of our common stock, which includes unvested restricted shares. Our board of directors also approved a dividend policy intended to return between 30 percent and 50 percent of our adjusted net income from the previous fiscal year to shareholders. This includes an annual special cash dividend, payable in the first quarter of each year. Our board of directors determines the declaration and payment of dividends on a quarterly basis, and is free to change our dividend policy at any time.

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Our board of directors declared the following dividends:

Declaration Date	Dividend Per Share		Record Date	Payment Date
February 2, 2017	$	0.3125	February 20, 2017	March 13, 2017
April 27, 2017	$	0.3125	May 26, 2017	June 15, 2017
July 27, 2017	$	0.3125	August 28, 2017	September 15, 2017
October 26, 2017	$	0.3125	November 29, 2017	December 15, 2017
February 1, 2018 (1)	$	1.6200	February 26, 2018	March 15, 2018
February 1, 2018	$	0.3750	February 26, 2018	March 15, 2018
April 27, 2018	$	0.3750	May 25, 2018	June 15, 2018

(1) Represents the annual special cash dividend based on fiscal year 2017 results.

Effective September 30, 2017, our board of directors authorized the repurchase of up to $150.0 million in common shares through September 30, 2019. No repurchases have been made in conjunction with this authorization through March 31, 2018.

We also purchase shares of common stock from restricted stock award recipients upon the award vesting as recipients sell shares to meet their employment tax obligations. During the first quarter of2018, we purchased 187,860 shares or $16.8 million of our common stock for this purpose.

Leverage

The following table presents total assets, adjusted assets, total shareholders' equity and tangible shareholders' equity with the resulting leverage ratios as of:

	March 31,			December 31,
(Dollars in thousands)	2018			2017
Total assets	$	1,577,366		$	2,024,683
Deduct: Goodwill and intangible assets	(102,074		)	(104,689		)
Deduct: Assets from noncontrolling interests	(52,408		)	(54,917		)
Adjusted assets	$	1,422,884		$	1,865,077
Total shareholders' equity	$	735,007		$	741,235
Deduct: Goodwill and intangible assets	(102,074		)	(104,689		)
Deduct: Noncontrolling interests	(47,015		)	(47,903		)
Tangible common shareholders' equity	$	585,918		$	588,643
Leverage ratio (1)	2.1			2.7
Adjusted leverage ratio (2)	2.4			3.2

(1) Leverage ratio equals total assets divided by total shareholders' equity.

(2) Adjusted leverage ratio equals adjusted assets divided by tangible common shareholders' equity.

Adjusted assets and tangible common shareholders' equity are non-GAAP financial measures. Goodwill and intangible assets are subtracted from total assets and total shareholders' equity in determining adjusted assets and tangible common shareholders' equity, respectively, as we believe that goodwill and intangible assets do not constitute operating assets which can be deployed in a liquid manner. Amounts attributed to noncontrolling interests are subtracted from total assets and total shareholders' equity in determining adjusted assets and tangible common shareholders' equity, respectively, as they represent assets and equity interests in consolidated entities that are not attributable, either directly or indirectly, to Piper Jaffray Companies. We view the resulting measure of adjusted leverage, also a non-GAAP financial measure, as a more relevant measure of financial risk when comparing financial services companies. Our adjusted leverage ratio decreased from December 31, 2017 due to lower inventory balances.

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Funding and Capital Resources

The primary goal of our funding activities is to ensure adequate funding over a wide range of market conditions. Given the mix of our business activities, funding requirements are fulfilled through a diversified range of short-term and long-term financing. We attempt to ensure that the tenor of our borrowing liabilities equals or exceeds the expected holding period of the assets being financed. Our ability to support increases in total assets is largely a function of our ability to obtain funding from external sources. Access to these external sources, as well as the cost of that financing, is dependent upon various factors, including market conditions, the general availability of credit and credit ratings. We currently do not have a credit rating, which could adversely affect our liquidity and competitive position by increasing our financing costs and limiting access to sources of liquidity that require a credit rating as a condition to providing the funds.

In 2017, we migrated to a fully disclosed clearing model and are no longer self clearing. Pershing is our clearing broker dealer. The conversion provided us with a new funding source through Pershing and, as a result, changed our mix of funding sources.

Our day-to-day funding and liquidity is obtained primarily through the use of our clearing arrangement with Pershing, commercial paper issuance, prime broker agreements, and bank lines of credit, and is typically collateralized by our securities inventory. These funding sources are critical to our ability to finance and hold inventory, which is a necessary part of our institutional brokerage business. The majority of our inventory is liquid and is therefore funded by short-term facilities. Certain of these short-term facilities (i.e., committed line and commercial paper) have been established to mitigate changes in the liquidity of our inventory based on changing market conditions. In the case of our committed line, it is available to us regardless of changes in market liquidity conditions through the end of its term, although there may be limitations on the type of securities available to pledge. Our commercial paper program helps mitigate changes in market liquidity conditions given it is not an overnight facility, but provides funding with a term of 27 to 270 days. Our funding sources are also dependent on the types of inventory that our counterparties are willing to accept as collateral and the number of counterparties available. Funding is generally obtained at rates based upon the federal funds rate or the London Interbank Offer Rate.

Pershing Clearing Arrangement – We have established an arrangement to obtain financing from Pershing related to the majority of our trading activities. Under our fully disclosed clearing agreement, the majority of our securities inventories and all of our customer activities are held by or cleared through Pershing. Financing under this arrangement is secured primarily by securities, and collateral limitations could reduce the amount of funding available under this arrangement. Our clearing arrangement activities are recorded net from trading activity and reported within receivables from or payables to brokers, dealers and clearing organizations. The funding is at the discretion of Pershing and could be denied. Our fully disclosed clearing agreement includes a covenant requiring Piper Jaffray & Co. to maintain excess net capital of $120 million. At March 31, 2018, we had $141.0 million of financing outstanding under this arrangement.

Commercial Paper Program – Our U.S. broker dealer subsidiary, Piper Jaffray & Co., issues secured commercial paper to fund a portion of its securities inventory. This commercial paper is currently issued under two separate programs, CP Series A and CP Series II A, and is secured by different inventory classes, which is reflected in the interest rate paid on the respective program. The programs can issue commercial paper with maturities of 27 to 270 days. CP Series II A includes a covenant that requires Piper Jaffray & Co. to maintain excess net capital of $100 million. The following table provides information about our commercial paper programs at March 31, 2018:

(Dollars in millions)	CP Series A		CP Series II A
Maximum amount that may be issued	$	300.0	$	200.0
Amount outstanding	—		50.0
Weighted average maturity, in days	—		8
Weighted average maturity at issuance, in days	—		31

Prime Broker Arrangements – We have established an arrangement to obtain overnight financing by a single prime broker related to certain strategic trading activities in municipal securities. Additionally, we have established a second overnight financing arrangement with another broker dealer related to our convertible securities inventories. Financing under these arrangements is secured primarily by securities, and collateral limitations could reduce the amount of funding available under these arrangements. Our prime broker financing activities are recorded net of receivables from trading activity. The funding is at the discretion of the prime brokers and could be denied subject to a notice period. At March 31, 2018, we had $136.3 million of financing outstanding under these prime broker arrangements.

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Committed Lines – Our committed line is a one-year $200 million revolving secured credit facility. We use our committed credit facility in the ordinary course of business to fund a portion of our daily operations, and the amount borrowed under the facility varies daily based on our funding needs. Advances under this facility are secured by certain marketable securities. The facility includes a covenant that requires Piper Jaffray & Co. to maintain minimum net capital of $120 million, and the unpaid principal amount of all advances under the facility will be due on December 14, 2018. This credit facility has been in place since 2008 and we renewed the facility for another one-year term in the fourth quarter of 2017. At March 31, 2018, we had no advances against this line of credit.

Uncommitted Line – We use this uncommitted line in the ordinary course of business to fund a portion of our daily operations, and the amount borrowed under our uncommitted line varies daily based on our funding needs. Our $85 million uncommitted secured line is dependent on having appropriate collateral, as determined by the bank agreement, to secure an advance under the line. Collateral limitations could reduce the amount of funding available under this secured line. Our uncommitted line is discretionary and is not a commitment by the bank to provide an advance under the line. More specifically, the line is subject to approval by the bank each time an advance is requested and advances may be denied, which may be particularly true during times of market stress or market perceptions of our exposures. We manage our relationship with the bank that provides this uncommitted facility in order to have appropriate levels of funding for our business. At March 31, 2018, we had no advances against this line of credit.

The following tables present the average balances outstanding for our various funding sources by quarter for 2018 and 2017, respectively.

	Average Balance for the Three Months Ended
(Dollars in millions)	Mar. 31, 2018		Dec. 31, 2017		Sept. 30, 2017		June 30, 2017		Mar. 31, 2017
Funding source:
Pershing clearing arrangement	$	47.1	$	20.6	$	26.3	$	—	$	—
Commercial paper	50.0		49.5		30.3		117.1		137.7
Prime broker arrangements	328.6		221.1		175.2		192.6		204.9
Short-term bank loans	—		—		6.0		67.1		2.5
Total	$	425.7	$	291.2	$	237.8	$	376.8	$	345.1

The average funding in the first quarter of2018increased to $425.7 million, compared with $345.1 million and $291.2 million during the first and fourth quarters of 2017, due to an increase in average inventory balances during the current quarter.

The following table presents the maximum daily funding amount by quarter for 2018 and 2017, respectively.

(Dollars in millions)	2018		2017
First Quarter	$	707.8	$	543.4
Second Quarter			$	538.3
Third Quarter			$	418.7
Fourth Quarter			$	569.9

Senior Notes

We have entered into variable and fixed rate senior notes with certain entities advised by Pacific Investment Management Company ("PIMCO"). At March 31, 2018 and December 31, 2017, we carried an outstanding senior notes balance of $125.0 million.

On October 8, 2015, we entered into a second amended and restated note purchase agreement ("Second Amended and Restated Note Purchase Agreement") under which we issued $125 million of fixed rate Class C Notes. The Class C Notes bear interest at an annual fixed rate of 5.06 percent, are payable semi-annually and mature on October 9, 2018. The unpaid principal amount is due in full on the maturity date and may not be prepaid. The $50 million of variable rate Class A Notes issued in 2014 were repaid in full on the May 31, 2017 maturity date.

The Second Amended and Restated Note Purchase Agreement includes customary events of default and covenants that, among other things, require us to maintain a minimum consolidated tangible net worth and minimum regulatory net capital, limit our leverage ratio and require maintenance of a minimum ratio of operating cash flow to fixed charges. At March 31, 2018, we were in compliance with all covenants.

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Contractual Obligations

Our contractual obligations have not materially changed from those reported in Part II, Item 7 of our Annual Report on Form 10-K for the year ended December 31, 2017, except for our operating lease obligations. On April 3, 2018, we entered into a new lease agreement for our Houston, Texas office location.

	Remainder of		2019		2021		2023 and
(Dollars in millions)	2018		- 2020		- 2022		thereafter		Total
Operating lease obligations	$	11.4	$	27.3	$	17.1	$	22.9	$	78.7

New Leases Guidance

As discussed in Note 2 to our unaudited consolidated financial statements, we will adopt new accounting guidance related to leases effective as of January 1, 2019. The guidance requires lessees to recognize all leases, including operating leases, with a term greater than 12 months on the statements of financial position. As of March 31, 2018, we had approximately 65 operating leases for office space with aggregate minimum lease commitments of $78.7 million. Upon adoption of the new guidance, this lease commitment will be reflected on our statement of financial condition as a right-of-use asset and a lease commitment liability. The impact of the new guidance on Piper Jaffray & Co.'s net capital is expected to be minimal.

Capital Requirements

As a registered broker dealer and member firm of the Financial Industry Regulatory Authority, Inc. ("FINRA"), Piper Jaffray & Co., our U.S. broker dealer subsidiary, is subject to the uniform net capital rule of the SEC and the net capital rule of FINRA. We have elected to use the alternative method permitted by the uniform net capital rule which requires that we maintain minimum net capital of $1.0 million. Advances to affiliates, repayment of subordinated liabilities, dividend payments and other equity withdrawals are subject to certain approvals, notifications and other provisions of the uniform net capital rules. We expect that these provisions will not impact our ability to meet current and future obligations. At March 31, 2018, our net capital under the SEC's uniform net capital rule was $185.8 million, and exceeded the minimum net capital required under the SEC rule by $184.8 million.

Although we operate with a level of net capital substantially greater than the minimum thresholds established by FINRA and the SEC, a substantial reduction of our capital would curtail many of our Capital Markets revenue producing activities.

Our committed short-term credit facility and our senior notes with PIMCO include covenants requiring Piper Jaffray & Co. to maintain minimum net capital of $120 million. Secured commercial paper issued under CP Series II A includes a covenant that requires Piper Jaffray & Co. to maintain excess net capital of $100 million. Our fully disclosed clearing agreement with Pershing also includes a covenant requiring Piper Jaffray & Co. to maintain excess net capital of $120 million.

At March 31, 2018, Piper Jaffray Ltd., our broker dealer subsidiary registered in the United Kingdom, was subject to, and was in compliance with, the capital requirements of the Prudential Regulation Authority and the Financial Conduct Authority pursuant to the Financial Services Act of 2012.

Piper Jaffray Hong Kong Limited is licensed by the Hong Kong Securities and Futures Commission, which is subject to the liquid capital requirements of the Securities and Futures (Financial Resources) Rule promulgated under the Securities and Futures Ordinance. At March 31, 2018, Piper Jaffray Hong Kong Limited was in compliance with the liquid capital requirements of the Hong Kong Securities and Trade Commission.

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Off-Balance Sheet Arrangements

In the ordinary course of business we enter into various types of off-balance sheet arrangements. The following table summarizes the notional contract value of our off-balance sheet arrangements for the periods presented:

	Expiration Per Period at December 31,												Total Contractual Amount
							2021		2023				March 31,		December 31,
(Dollars in thousands)	2018		2019		2020		- 2022		- 2024		Later		2018		2017
Customer matched-book derivative contracts (1) (2)	$	—	$	32,850	$	23,850	$	50,450	$	165,020	$	2,410,165	$	2,682,335	$	2,819,006
Trading securities derivative contracts (2)	436,900		9,500		—		—		—		9,375		455,775		399,450
Equity option derivative contracts (2)	—		—		—		—		—		—		—		9,635
Investment commitments (3)	—		—		—		—		—		—		80,301		72,467

(1) Consists of interest rate swaps. We have minimal market risk related to these matched-book derivative contracts; however, we do have counterparty risk with one major financial institution, which is mitigated by collateral deposits. In addition, we have a limited number of counterparties (contractual amount of $179.9 million at March 31, 2018) who are not required to post collateral. The uncollateralized amounts, representing the fair value of the derivative contracts, expose us to the credit risk of these counterparties. At March 31, 2018, we had $17.0 million of credit exposure with these counterparties, including $12.9 million of credit exposure with one counterparty.

(2) We believe the fair value of these derivative contracts is a more relevant measure of the obligations because we believe the notional or contract amount overstates the expected payout. At March 31, 2018 and December 31, 2017, the net fair value of these derivative contracts approximated $14.7 million and $20.5 million, respectively.

(3) The investment commitments have no specified call dates. The timing of capital calls is based on market conditions and investment opportunities.

Derivatives

Derivatives' notional or contract amounts are not reflected as assets or liabilities on our consolidated statements of financial condition. Rather, the fair value of the derivative transactions are reported on the consolidated statements of financial condition as assets or liabilities in financial instruments and other inventory positions owned and financial instruments and other inventory positions sold, but not yet purchased, as applicable. For a discussion of our activities related to derivative products, see Note 3, "Financial Instruments and Other Inventory Positions Owned and Financial Instruments and Other Inventory Positions Sold, but Not Yet Purchased," in the notes to our unaudited consolidated financial statements.

Investment Commitments

We have investments, including those made as part of our merchant banking activities, in various limited partnerships or limited liability companies that provide financing or make investments in companies. We commit capital and/or act as the managing partner of these entities. We have committed capital of $80.3 million to certain entities and these commitments generally have no specified call dates.

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Risk Management

Risk is an inherent part of our business. The principal risks we face in operating our business include: strategic risk, market risk, liquidity risk, credit risk, operational risk, human capital risk, and legal and regulatory risks. The extent to which we properly identify and effectively manage each of these risks is critical to our financial condition and profitability. We have a formal risk management process to identify, assess and monitor each risk and mitigating controls in accordance with defined policies and procedures. The risk management functions are independent of our business lines. Our management takes an active role in the risk management process, and the results are reported to senior management and the Board of Directors.

The audit committee of the Board of Directors oversees management's processes for identifying and evaluating our major risks, and the policies, procedures and practices employed by management to govern its risk assessment and risk management processes. The nominating and governance committee of the Board of Directors oversees the Board of Directors' committee structures and functions as they relate to the various committees' responsibilities with respect to oversight of our major risk exposures. With respect to these major risk exposures, the audit committee is responsible for overseeing management's monitoring and control of our major risk exposures relating to market risk, credit risk, liquidity risk, legal and regulatory risk, operational risk (including cybersecurity), and human capital risk relating to misconduct, fraud, and legal and compliance matters. Our compensation committee is responsible for overseeing management's monitoring and control of our major risk exposures relating to compensation, organizational structure, and succession. Our Board of Directors is responsible for overseeing management's monitoring and control of our major risk exposures related to our corporate strategy. Our Chief Executive Officer and Chief Financial Officer meet with the audit committee on a quarterly basis to discuss our market, liquidity, and legal and regulatory risks, and provide updates to the Board of Directors, audit committee, and compensation committee concerning the other major risk exposures on a regular basis.

We use internal committees to assist in governing risk and ensure that our business activities are properly assessed, monitored and managed. Our financial risk committees manage our market, liquidity and credit risks, and oversee risk management practices related to these risks, including defining acceptable risk tolerances and approving risk management policies. Membership is comprised of senior leadership, including but not limited to, our Chief Executive Officer, President, Chief Financial Officer, General Counsel, Treasurer, Head of Market and Credit Risk, Head of Public Finance and Head of Fixed Income Services and Firm Investments and Trading. Other committees that help evaluate and monitor risk include underwriting, leadership team and operating committees. These committees help manage risk by ensuring that business activities are properly managed and within a defined scope of activity. Our valuation committee, comprised of members of senior management and risk management, provide oversight and overall responsibility for the internal control processes and procedures related to fair value measurements. Additionally, our operational risk committees address and monitor risk related to information systems and security, legal, regulatory and compliance matters, and third parties such as vendors and service providers.

With respect to market risk and credit risk, the cornerstone of our risk management process is daily communication among traders, trading department management and senior management concerning our inventory positions, including those associated with our strategic trading activities, and overall risk profile. Our risk management functions supplement this communication process by providing their independent perspectives on our market and credit risk profile on a daily basis. The broader objectives of our risk management functions are to understand the risk profile of each trading area, to consolidate risk monitoring company-wide, to assist in implementing effective hedging strategies, to articulate large trading or position risks to senior management, and to ensure accurate fair values of our financial instruments.

Risk management techniques, processes and strategies may not be fully effective in mitigating our risk exposure in all market environments or against all types of risk, and any risk management failures could expose us to material unanticipated losses.

Strategic Risk

Strategic risk represents the risk associated with executive management failing to develop and execute on the appropriate strategic vision which demonstrates a commitment to our culture, leverages our core competencies, appropriately responds to external factors in the marketplace, and is in the best interests of our clients, employees and shareholders.

Our leadership team is responsible for managing our strategic risks. The Board of Directors oversees the leadership team in setting and executing our strategic plan.

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Market Risk

Market risk represents the risk of losses, or financial volatility that may result from the change in value of a financial instrument due to fluctuations in its market price. Our exposure to market risk is directly related to our role as a financial intermediary for our clients, to our market-making activities and our strategic trading activities. Market risks are inherent to both cash and derivative financial instruments. The scope of our market risk management policies and procedures includes all market-sensitive financial instruments.

Our different types of market risk include:

Interest Rate Risk — Interest rate risk represents the potential volatility from changes in market interest rates. We are exposed to interest rate risk arising from changes in the level and volatility of interest rates, changes in the slope of the yield curve, changes in credit spreads, and the rate of prepayments on our interest-earning assets (e.g., inventories) and our funding sources (e.g., short-term financing) which finance these assets. Interest rate risk is managed by selling short U.S. government securities, agency securities, corporate debt securities and derivative contracts. See Note 3 of our accompanying unaudited consolidated financial statements for additional information on our derivative contracts. Our interest rate hedging strategies may not work in all market environments and as a result may not be effective in mitigating interest rate risk. Also, we establish limits on the notional level of our fixed income securities inventory and manage net positions within those limits.

Equity Price Risk — Equity price risk represents the potential loss in value due to adverse changes in the level or volatility of equity prices. We are exposed to equity price risk through our trading activities in the U.S. market. We attempt to reduce the risk of loss inherent in our market-making and in our inventory of equity securities by establishing limits on the notional level of our inventory and by managing net position levels within those limits.

Foreign Exchange Risk — Foreign exchange risk represents the potential volatility to earnings or capital arising from movement in foreign exchange rates. A modest portion of our business is conducted in currencies other than the U.S. dollar, and changes in foreign exchange rates relative to the U.S. dollar can therefore affect the value of non-U.S. dollar net assets, revenues and expenses. A change in the foreign currency rates could create either a foreign currency transaction gain/loss (recorded in our consolidated statements of operations) or a foreign currency translation adjustment (recorded to accumulated other comprehensive income/ (loss) within the shareholders'equity section of our consolidated statements of financial condition and other comprehensive income/ (loss) within the consolidated statements of comprehensive income).

Value-at-Risk ("VaR")

We use the statistical technique known as VaR to measure, monitor and review the market risk exposures in our trading portfolios. VaR is the potential loss in value of our trading positions, excluding noncontrolling interests, due to adverse market movements over a defined time horizon with a specified confidence level. We perform a daily VaR analysis on substantially all of our trading positions, including fixed income, equities, convertible bonds, mortgage-backed securities and all associated economic hedges. These positions encompass both customer-related and strategic trading activities. A VaR model provides a common metric for assessing market risk across business lines and products. Changes in VaR between reporting periods are generally due to changes in levels of risk exposure, volatilities and/or correlations among asset classes and individual securities.

We use a Monte Carlo simulation methodology for VaR calculations. We believe this methodology provides VaR results that properly reflect the risk profile of all our instruments, including those that contain optionality, and also accurately models correlation movements among all of our asset classes. In addition, it provides improved tail results as there are no assumptions of distribution, and can provide additional insight for scenario shock analysis.

Model-based VaR derived from simulation has inherent limitations including: reliance on historical data to predict future market risk; VaR calculated using a one-day time horizon does not fully capture the market risk of positions that cannot be liquidated or offset with hedges within one day; and published VaR results reflect past trading positions while future risk depends on future positions.

The modeling of the market risk characteristics of our trading positions involves a number of assumptions and approximations. While we believe that these assumptions and approximations are reasonable, different assumptions and approximations could produce materially different VaR estimates. When comparing our VaR numbers to those of other firms, it is important to remember that different methodologies, assumptions and approximations could produce significantly different results.

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The following table quantifies the model-based VaR simulated for each component of market risk for the periods presented, which are computed using the past 250 days of historical data. When calculating VaR we use a 95 percent confidence level and a one-day time horizon. This means that, over time, there is a one in 20 chance that daily trading net revenues will fall below the expected daily trading net revenues by an amount at least as large as the reported VaR. Shortfalls on a single day can exceed reported VaR by significant amounts. Shortfalls can also accumulate over a longer time horizon, such as a number of consecutive trading days. Therefore, there can be no assurance that actual losses occurring on any given day arising from changes in market conditions will not exceed the VaR amounts shown below or that such losses will not occur more than once in a 20-day trading period.

	March 31,			December 31,
(Dollars in thousands)	2018			2017
Interest Rate Risk	$	801		$	965
Equity Price Risk	62			62
Diversification Effect (1)	(40		)	(40		)
Total Value-at-Risk	$	823		$	987

(1) Equals the difference between total VaR and the sum of the VaRs for the two risk categories. This effect arises because the two market risk categories are not perfectly correlated.

The aggregate VaR as of March 31, 2018 was lower than the reported VaR on December 31, 2017. The decrease in VaR was due to lower inventory levels compared to the end of 2017.

We view average VaR over a period of time as more representative of trends in the business than VaR at any single point in time. The table below illustrates the daily high, low and average VaR calculated for each component of market risk during the three months ended March 31, 2018 and the year ended December 31, 2017, respectively.

(Dollars in thousands)	High		Low		Average
For the Three Months Ended March 31, 2018
Interest Rate Risk	$	1,084	$	771	$	938
Equity Price Risk	69		39		56
Diversification Effect (1)					(36		)
Total Value-at-Risk	$	1,101	$	788	$	958

(Dollars in thousands)	High		Low		Average
For the Year Ended December 31, 2017
Interest Rate Risk	$	1,235	$	480	$	785
Equity Price Risk	178		28		81
Diversification Effect (1)					(57		)
Total Value-at-Risk	$	1,244	$	506	$	809

(1) Equals the difference between total VaR and the sum of the VaRs for the two risk categories. This effect arises because the two market risk categories are not perfectly correlated. Because high and low VaR numbers for these risk categories may have occurred on different days, high and low numbers for diversification benefit would not be meaningful.

Trading losses exceeded our one-day VaR on one occasion during the first quarter of2018.

In addition to VaR, we also employ additional measures to monitor and manage market risk exposure including net market position, duration exposure, option sensitivities, and inventory turnover. All metrics are aggregated by asset concentration and are used for monitoring limits and exception approvals. In times of market volatility, we also perform ad hoc stress tests and scenario analysis as market conditions dictate. Unlike our VaR, which measures potential losses within a given confidence level, stress scenarios do not have an associated implied probability. Rather, stress testing is used to estimate the potential loss from market moves outside our VaR confidence levels.

Liquidity Risk

Liquidity risk is the risk that we are unable to timely access necessary funding sources in order to operate our business, as well as the risk that we are unable to timely divest securities that we hold in connection with our market-making, sales and trading, and strategic trading activities. We are exposed to liquidity risk in our day-to-day funding activities, by holding potentially illiquid inventory positions and in our role as a remarketing agent for variable rate demand notes.

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See the section entitled "Liquidity, Funding and Capital Resources" for information regarding our liquidity and how we manage liquidity risk.

Our inventory positions, including those associated with strategic trading activities, subject us to potential financial losses from the reduction in value of illiquid positions. Market risk can be exacerbated in times of trading illiquidity when market participants refrain from transacting in normal quantities and/or at normal bid-offer spreads. Depending on the specific security, the structure of the financial product, and/or overall market conditions, we may be forced to hold a security for substantially longer than we had planned or forced to liquidate into a challenging market if funding becomes unavailable.

Credit Risk

Credit risk refers to the potential for loss due to the default or deterioration in credit quality of a counterparty, customer, borrower or issuer of securities we hold in our trading inventory. The nature and amount of credit risk depends on the type of transaction, the structure and duration of that transaction and the parties involved. Credit risk also results from an obligor's failure to meet the terms of any contract with us or otherwise fail to perform as agreed. This may be reflected through issues such as settlement obligations or payment collections.

Our different types of credit risk include:

Credit Spread Risk — Credit spread risk arises from the possibility that changes in credit spreads will affect the value of financial instruments. Credit spreads represent the credit risk premiums required by market participants for a given credit quality (e.g., the additional yield that a debt instrument issued by a AA-rated entity must produce over a risk-free alternative). Changes in credit spreads result from potential changes in an issuer's credit rating or the market's perception of the issuer's credit worthiness. We are exposed to credit spread risk with the debt instruments held in our trading inventory, including those held for strategic trading activites. We enter into transactions to hedge our exposure to credit spread risk through the use of derivatives and certain other financial instruments. These hedging strategies may not work in all market environments and as a result may not be effective in mitigating credit spread risk.

Deterioration/Default Risk — Deterioration/default risk represents the risk due to an issuer, counterparty or borrower failing to fulfill its obligations. We are exposed to deterioration/default risk in our role as a trading counterparty to dealers and customers, as a holder of securities, and as a member of exchanges. The risk of default depends on the creditworthiness of the counterparty and/or issuer of the security. We mitigate this risk by establishing and monitoring individual and aggregate position limits for each counterparty relative to potential levels of activity, holding and marking to market collateral on certain transactions. Our risk management functions also evaluate the potential risk associated with institutional counterparties with whom we hold derivatives, TBAs and other documented institutional counterparty agreements that may give rise to credit exposure.

Collections Risk — Collections risk arises from ineffective management and monitoring of collecting outstanding debts and obligations, including those related to our customer trading activities and margin lending. Our client activities involve the execution, settlement and financing of various transactions. Client activities are transacted on a delivery versus payment, cash or margin basis. Our credit exposure to institutional client business is mitigated by the use of industry-standard delivery versus payment through depositories and clearing banks. Credit exposure associated with our customer margin accounts in the U.S. is monitored daily. Our risk management functions have credit risk policies establishing appropriate credit limits and collateralization thresholds for our customers utilizing margin lending.

Concentration Risk— Concentration risk is the risk due to concentrated exposure to a particular product; individual issuer, borrower or counterparty; financial instrument; or geographic area. We are subject to concentration risk if we hold large individual securities positions, execute large transactions with individual counterparties or groups of related counterparties, or make substantial underwriting commitments. Concentration risk can occur by industry, geographic area or type of client. Securities purchased under agreements to resell consist primarily of securities issued by the U.S. government or its agencies. The counterparties to these agreements typically are primary dealers of U.S. government securities and major financial institutions. Inventory and investment positions taken and commitments made, including underwritings, may result in exposure to individual issuers and businesses. Potential concentration risk is carefully monitored through review of counterparties and borrowers and is managed through the use of policies and limits established by senior management.

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We have concentrated counterparty credit exposure with five non-publicly rated entities totaling $17.0 million at March 31, 2018. This counterparty credit exposure is part of our matched-book derivative program related to our public finance business, consisting primarily of interest rate swaps. One derivative counterparty represents 75.9 percent, or $12.9 million, of this exposure. Credit exposure associated with our derivative counterparties is driven by uncollateralized market movements in the fair value of the interest rate swap contracts and is monitored regularly by our financial risk committee. We attempt to minimize the credit (or repayment) risk in derivative instruments by entering into transactions with high-quality counterparties that are reviewed periodically by senior management.

Operational Risk

Operational risk is the risk of loss, or damage to our reputation, resulting from inadequate or failed processes, people and systems or from external events. We rely on the ability of our employees and our systems, both internal and at computer centers operated by third parties, to process a large number of transactions. Our systems may fail to operate properly or become disabled as a result of events that are wholly or partially beyond our control. In the event of a breakdown or improper operation of our systems or improper action by our employees or third party vendors, we could suffer financial loss, a disruption of our businesses, regulatory sanctions and damage to our reputation. We also face the risk of operational failure or termination of any of the exchanges, fully disclosed clearing firms, or other financial intermediaries we use to facilitate our securities transactions. Any such failure or termination could adversely affect our ability to effect transactions and manage our exposure to risk.

Our operations rely on secure processing, storage and transmission of confidential and other information in our internal and outsourced computer systems and networks. Our computer systems, software and networks may be vulnerable to unauthorized access, computer viruses or other malicious code, internal misconduct or inadvertent errors and other events that could have an information security impact. The occurrence of one or more of these events, which we have experienced, could jeopardize our or our clients' or counterparties' confidential and other information processed and stored in, and transmitted through, our computer systems and networks, or otherwise cause interruptions or malfunctions in our, our clients', our counterparties' or third parties' operations. We take protective measures and endeavor to modify them as circumstances warrant.

In order to mitigate and control operational risk, we have developed and continue to enhance policies and procedures that are designed to identify and manage operational risk at appropriate levels throughout the organization. We also have business continuity plans in place that we believe will cover critical processes on a company-wide basis, and redundancies are built into our systems as we have deemed appropriate. These control mechanisms attempt to ensure that operational policies and procedures are being followed and that our various businesses are operating within established corporate policies and limits.

In 2017, we migrated to a fully disclosed clearing model for all of our clearing operations. In a fully disclosed clearing model, we act as an introducing broker for client transactions and rely on Pershing, our clearing broker dealer, to facilitate clearance and settlement of our clients' securities transactions. Subsequent to transitioning to a fully disclosed clearing model, the clearing services provided by Pershing are critical to our business operations, and similar to other services performed by third party vendors, any failure by Pershing with respect to the services we rely upon Pershing to provide could cause financial loss, significantly disrupt our business, damage our reputation, and adversely affect our ability to serve our clients and manage our exposure to risk.

Human Capital Risk

Our business is a human capital business and our success is dependent upon the skills, expertise and performance of our employees. Human capital risks represent the risks posed if we fail to attract and retain qualified individuals who are motivated to serve the best interests of our clients, thereby serving the best interests of our company. Attracting and retaining employees depends, among other things, on our company's culture, management, work environment, geographic locations and compensation. There are risks associated with the proper recruitment, development and rewards of our employees to ensure quality performance and retention.

Legal and Regulatory Risk

Legal and regulatory risk includes the risk of non-compliance with applicable legal and regulatory requirements and loss to our reputation we may suffer as a result of failure to comply with laws, regulations, rules, related self-regulatory organization standards and codes of conduct applicable to our business activities. We are generally subject to extensive regulation in the various jurisdictions in which we conduct our business. We have established procedures that are designed to ensure compliance with applicable statutory and regulatory requirements, such as public company reporting obligations, regulatory net capital requirements, sales and trading practices, potential conflicts of interest, anti-money laundering, privacy and recordkeeping. We have also established procedures

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that are designed to require that our policies relating to ethics and business conduct are followed. The legal and regulatory focus on the financial services industry presents a continuing business challenge for us.

Our business also subjects us to the complex income tax laws of the jurisdictions in which we have business operations, and these tax laws may be subject to different interpretations by the taxpayer and the relevant governmental taxing authorities. We must make judgments and interpretations about the application of these inherently complex tax laws when determining the provision for income taxes.

Effects of Inflation

Because our assets are liquid and generally short-term in nature, they are not significantly affected by inflation. However, the rate of inflation affects our expenses, such as employee compensation, office space leasing costs and communications charges, which may not be readily recoverable in the price of services we offer to our clients. To the extent inflation results in rising interest rates and has adverse effects upon the securities markets, it may adversely affect our financial position and results of operations.

ITEM 3.    QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

The information under the caption "Risk Management" in Part I, Item 2, "Management's Discussion and Analysis of Financial Condition and Results of Operations," in this Quarterly Report on Form 10-Q is incorporated herein by reference.

ITEM 4.    CONTROLS AND PROCEDURES.

As of the end of the period covered by this report, we conducted an evaluation, under the supervision and with the participation of our principal executive officer and principal financial officer, of our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934). Based on this evaluation, our principal executive officer and principal financial officer concluded that our disclosure controls and procedures are effective to ensure that information required to be disclosed by us in reports that we file or submit under the Securities Exchange Act of 1934 is (a) recorded, processed, summarized and reported within the time periods specified in Securities and Exchange Commission rules and forms and (b) accumulated and communicated to our management, including our principal executive officer and principal financial officer to allow timely decisions regarding disclosure.

During the first quarter of our fiscal year ending December 31, 2018, there was no change in our system of internal control over financial reporting (as defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934) that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

PART II.    OTHER INFORMATION

ITEM 1.    LEGAL PROCEEDINGS.

The discussion of our business and operations should be read together with the legal proceedings contained in Part I, Item 3 "Legal Proceedings" in our Annual Report on Form 10-K for the fiscal year ended December 31, 2017.

ITEM 1A.    RISK FACTORS.

The discussion of our business and operations should be read together with the risk factors contained in Part I, Item 1A of our Annual Report on Form 10-K for the fiscal year ended December 31, 2017. These risk factors describe various risks and uncertainties to which we are or may become subject. These risks and uncertainties have the potential to affect our business, financial condition, results of operations, cash flows, strategies or prospects in a material and adverse manner. 

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ITEM 2.    UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS.

The table below sets forth the information with respect to purchases made by or on behalf of Piper Jaffray Companies or any "affiliated purchaser" (as defined in Rule 10b-18(a)(3) under the Securities Exchange Act of 1934), of our common stock during the quarter ended March 31, 2018.

				Total Number of Shares	Approximate Dollar
				Purchased as Part of	Value of Shares Yet to be
	Total Number of	Average Price		Publicly Announced	Purchased Under the
Period	Shares Purchased	Paid per Share		Plans or Programs	Plans or Programs (1)
Month #1
(January 1, 2018 to January 31, 2018)	71	$	92.00	—	$	150	million
Month #2
(February 1, 2018 to February 28, 2018)	187,789	$	89.41	—	$	150	million
Month #3
(March 1, 2018 to March 31, 2018)	—	$	—	—	$	150	million
Total	187,860	$	89.41	—	$	150	million

(1) Effective September 30, 2017, our board of directors authorized the repurchase of up to $150.0 million of common stock through September 30, 2019.

ITEM 6.    EXHIBITS.

Exhibit		Method
Number	Description	of Filing
31.1	Rule 13a-14(a)/15d-14(a) Certification of Chief Executive Officer.	Filed herewith
31.2	Rule 13a-14(a)/15d-14(a) Certification of Chief Financial Officer.	Filed herewith
32.1	Section 1350 Certifications.	Filed herewith
101	Interactive data files pursuant to Rule 405 Registration S-T: (i) the Consolidated Statements of Financial Condition as of March 31, 2018 and December 31, 2017, (ii) the Consolidated Statements of Operations for the three months ended March 31, 2018 and 2017, (iii) the Consolidated Statements of Comprehensive Income for the three months ended March 31, 2018 and 2017, (iv) the Consolidated Statements of Cash Flows for the three months ended March 31, 2018 and 2017 and (v) the notes to the Consolidated Financial Statements.	Filed herewith

61

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

		PIPER JAFFRAY COMPANIES
Date:	May 4, 2018	By	/s/ Chad R. Abraham
		Its	Chief Executive Officer
Date:	May 4, 2018	By	/s/ Timothy L. Carter
		Its	Chief Financial Officer

EX-31.1

Exhibit 31.1

CERTIFICATIONS

I, Chad R. Abraham, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Piper Jaffray Companies;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: May 4, 2018

/s/ Chad R. Abraham

Chad R. Abraham

Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATIONS

I, Timothy L. Carter, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Piper Jaffray Companies;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of the registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

Date: May 4, 2018

/s/ Timothy L. Carter

Timothy L. Carter

Chief Financial Officer

EX-32.1

Exhibit 32.1

Certification Under Section 906 of the Sarbanes-Oxley Act of 2002

Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, each of the undersigned certifies that this periodic report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934 and that information contained in this periodic report fairly presents, in all material respects, the financial condition and results of operations of Piper Jaffray Companies.

Dated: May 4, 2018

/s/ Chad R. Abraham

Chad R. Abraham

Chief Executive Officer

/s/ Timothy L. Carter

Timothy L. Carter

Chief Financial Officer

XML

Document and Entity Information - shares	3 Months Ended
	Mar. 31, 2018	Apr. 30, 2018
Document and Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q1
Trading Symbol	PJC
Entity Registrant Name	Piper Jaffray Companies
Entity Central Index Key	0001230245
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		15,198,317

XML

Consolidated Statements of Financial Condition - USD ($) $ in Thousands		Mar. 31, 2018		Dec. 31, 2017
Assets
Cash and cash equivalents	[1]	$ 27,642		$ 33,793
Receivables from brokers, dealers and clearing organizations		46,302		145,394
Financial instruments and other inventory positions owned		529,943		663,330
Financial instruments and other inventory positions owned and pledged as collateral		503,860		720,047
Total financial instruments and other inventory positions owned		1,033,803		1,383,377
Fixed assets (net of accumulated depreciation and amortization of $58,059 and $55,944, respectively)		24,787		25,179
Goodwill		81,855		81,855
Intangible assets (net of accumulated amortization of $88,032 and $85,417, respectively)		20,219		22,834
Investments		169,739		176,212
Net deferred income tax assets		95,595		101,205
Other assets		77,424		54,834
Total assets		1,577,366		2,024,683
Liabilities and Shareholders’ Equity
Short-term financing		186,254		289,937
Senior notes		125,000		125,000
Payables to brokers, dealers and clearing organizations		33,582		19,392
Financial instruments and other inventory positions sold, but not yet purchased		320,469		399,227
Accrued compensation		127,351		400,092
Other liabilities and accrued expenses		49,703		49,800
Total liabilities		842,359		1,283,448
Shareholders’ equity:
Common stock, $0.01 par value: Shares authorized: 100,000,000 at March 31, 2018 and December 31, 2017; Shares issued: 19,513,856 at March 31, 2018 and 19,512,914 at December 31, 2017; Shares outstanding: 13,298,825 at March 31, 2018 and 12,911,149 at December 31, 2017		195		195
Additional paid-in capital		802,566		791,970
Retained earnings (1)		152,701	[2]	176,270
Less common stock held in treasury, at cost: 6,215,031 at March 31, 2018 and 6,601,765 shares at December 31, 2017		(266,720)		(273,824)
Accumulated other comprehensive loss		(750)		(1,279)
Total common shareholders’ equity		687,992		693,332
Noncontrolling interests		47,015		47,903
Total shareholders’ equity		735,007		741,235
Total liabilities and shareholders’ equity		$ 1,577,366		$ 2,024,683

[1] Upon adoption of ASU 2016-18, restricted cash includes cash and cash equivalents previously segregated for regulatory purposes. See Note 2 for further discussion.

[2] Includes the cumulative effect adjustment upon adoption of ASU 2014-09, as amended. See Note 2 for further discussion.

XML

Consolidated Statements of Financial Condition (Parenthetical) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Statement of Financial Position [Abstract]
Accumulated depreciation and amortization on fixed assets	$ 58,059	$ 55,944
Accumulated amortization on intangible assets	$ 88,032	$ 85,417
Common stock, par value	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	19,513,856	19,512,914
Common stock, shares outstanding	13,298,825	12,911,149
Common stock held in treasury, shares	6,215,031	6,601,765

XML

Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Revenues:
Investment banking	$ 120,841	$ 132,250
Institutional brokerage	27,645	39,136
Asset management	12,589	16,007
Interest	10,413	7,719
Investment income	2,912	10,375
Total revenues	174,400	205,487
Interest expense	5,338	4,958
Net revenues	169,062	200,529
Non-interest expenses:
Compensation and benefits	115,170	134,378
Outside services	8,939	10,328
Occupancy and equipment	8,578	8,462
Communications	8,626	7,616
Marketing and business development	7,299	7,547
Deal-related expenses	5,051	0
Trade execution and clearance	2,163	1,811
Intangible asset amortization	2,615	3,822
Back office conversion costs	0	866
Other operating expenses	2,583	2,890
Total non-interest expenses	161,024	177,720
Income before income tax benefit	8,038	22,809
Income tax benefit	(2,581)	(395)
Net income	10,619	23,204
Net income applicable to noncontrolling interests	16	2,929
Net income applicable to Piper Jaffray Companies	10,603	20,275
Net income applicable to Piper Jaffray Companies' common shareholders	$ 6,435	$ 16,828
Earnings per common share
Basic	$ 0.47	$ 1.33
Diluted	0.47	1.31
Dividends declared per common share	$ 1.995	$ 0.3125
Weighted average number of common shares outstanding
Basic	13,096	12,594
Diluted	13,382	12,922

XML

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Statement of Comprehensive Income [Abstract]
Net income	$ 10,619	$ 23,204
Other comprehensive income, net of tax:
Foreign currency translation adjustment	529	223
Comprehensive income	11,148	23,427
Comprehensive income applicable to noncontrolling interests	16	2,929
Comprehensive income applicable to Piper Jaffray Companies	$ 11,132	$ 20,498

XML

Consolidated Statements of Cash Flows - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2018	Mar. 31, 2017
Operating Activities:
Net income		$ 10,619	$ 23,204
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization of fixed assets		2,003	1,703
Deferred income taxes		5,610	13,916
Stock-based compensation		8,970	4,676
Amortization of intangible assets		2,615	3,822
Amortization of forgivable loans		1,298	1,820
Receivables:
Customers		0	8,428
Brokers, dealers and clearing organizations		99,092	18,444
Securities purchased under agreements to resell		0	(71,423)
Net financial instruments and other inventory positions owned		270,816	145,860
Investments		6,473	8,382
Other assets		(23,256)	(14,170)
Payables:
Customers		0	12,242
Brokers, dealers and clearing organizations		14,190	163,221
Securities sold under agreements to repurchase		0	(480)
Accrued compensation		(247,363)	(153,843)
Other liabilities and accrued expenses		(4,619)	(1,993)
Net cash provided by operating activities		146,448	163,809
Investing Activities:
Purchases of fixed assets, net		(1,560)	(1,756)
Net cash used in investing activities		(1,560)	(1,756)
Financing Activities:
Decrease in short-term financing		(103,683)	(121,686)
Payment of cash dividend		(30,375)	(4,746)
Decrease in noncontrolling interests		(904)	(16,154)
Repurchase of common stock		(16,797)	(19,788)
Proceeds from stock option exercises		0	1,703
Net cash used in financing activities		(151,759)	(160,671)
Currency adjustment:
Effect of exchange rate changes on cash		720	145
Net increase/(decrease) in cash, cash equivalents and restricted cash (1)	[1]	(6,151)	1,527
Cash, cash equivalents and restricted cash at beginning of period (1)	[1]	33,793	70,374
Cash, cash equivalents and restricted cash at end of period (1)	[1]	27,642	71,901
Supplemental disclosure of cash flow information –
Interest		5,615	4,464
Income taxes		$ 12,474	$ 7,710

[1] Upon adoption of ASU 2016-18, restricted cash includes cash and cash equivalents previously segregated for regulatory purposes. See Note 2 for further discussion.

XML

Organization and Basis of Presentation

3 Months Ended

Mar. 31, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Basis of Presentation

Organization and Basis of Presentation

Organization

Piper Jaffray Companies is the parent company of Piper Jaffray & Co. ("Piper Jaffray"), a securities broker dealer and investment banking firm; Piper Jaffray Ltd., a firm providing securities brokerage and mergers and acquisitions services in Europe; Piper Jaffray Finance LLC, which facilitates corporate debt underwriting in conjunction with affiliated credit vehicles; Advisory Research, Inc. ("ARI"), which provides asset management services to separately managed accounts, closed-end and open-end funds and partnerships; Piper Jaffray Investment Group Inc. and PJC Capital Management LLC, which consist of entities providing alternative asset management services; Piper Jaffray Financial Products Inc. and Piper Jaffray Financial Products II Inc., entities that facilitate derivative transactions; and other immaterial subsidiaries.

Effective August 7, 2017, Piper Jaffray transitioned from a self clearing securities broker dealer to a fully disclosed clearing model. Pershing LLC ("Pershing") is Piper Jaffray's clearing broker dealer responsible for the clearance and settlement of firm and customer cash and security transactions.

Piper Jaffray Companies and its subsidiaries (collectively, the "Company") operate in two reporting segments: Capital Markets and Asset Management. A summary of the activities of each of the Company's business segments is as follows:

Capital Markets

The Capital Markets segment provides investment banking services and institutional sales, trading and research services. Investment banking services include financial advisory services, management of and participation in underwritings and public finance activities. Revenues are generated through the receipt of advisory and financing fees. Institutional sales, trading and research services focus on the trading of equity and fixed income products with institutions, government and non-profit entities. Revenues are generated through commissions and sales credits earned on equity and fixed income institutional sales activities, net interest revenues on trading securities held in inventory, and profits and losses from trading these securities. Also, the Company generates revenue through strategic trading and investing activities, which focus on investments in municipal bonds, U.S. government agency securities, and merchant banking activities involving equity or debt investments in late stage private companies. The Company has created alternative asset management funds in merchant banking, energy and senior living in order to invest firm capital and to manage capital from outside investors. The Company receives management and performance fees for managing these funds.

Asset Management

The Asset Management segment provides traditional asset management services with product offerings in master limited partnerships and equity securities to institutions and individuals. Revenues are generated in the form of management and performance fees. Revenues are also generated through investments in the partnerships and funds that the Company manages.

Basis of Presentation

The accompanying consolidated financial statements have been prepared in accordance with U.S. generally accepted accounting principles ("U.S. GAAP") for interim financial information and the rules and regulations of the Securities and Exchange Commission ("SEC"). Pursuant to this guidance, certain information and disclosures have been omitted that are included within complete annual financial statements. Except as disclosed herein, there have been no material changes in the information reported in the financial statements and related disclosures in the Company's Annual Report on Form 10-K for the year ended December 31, 2017.

The consolidated financial statements include the accounts of Piper Jaffray Companies, its wholly owned subsidiaries, and all other entities in which the Company has a controlling financial interest. Noncontrolling interests represent equity interests in consolidated entities that are not attributable, either directly or indirectly, to Piper Jaffray Companies. Noncontrolling interests include the minority equity holders' proportionate share of the equity in the Company's alternative asset management funds. All material intercompany balances have been eliminated.

Management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Although these estimates and assumptions are based on the best information available, actual results could differ from those estimates.

XML

Accounting Policies and Pronouncements

3 Months Ended

Mar. 31, 2018

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Accounting Policies and Pronouncements

Accounting Policies and Pronouncements

Summary of Significant Accounting Policies

Refer to the Company's Annual Report on Form 10-K for the year ended December 31, 2017 for a full description of the Company's significant accounting policies. Changes to the Company's significant accounting policies are described below.

Revenue Recognition

Investment Banking– Investment banking revenues, which include advisory and underwriting fees, are recorded when the performance obligation for the transaction is satisfied under the terms of each engagement. Expenses associated with such transactions are deferred until the related revenue is recognized or the engagement is otherwise concluded. Investment banking revenues are presented gross of related client reimbursed deal expenses. Expenses for completed deals are reported separately in deal-related expenses on the consolidated statements of operations. Expenses related to investment banking deals not completed are recognized as non-interest expenses on the consolidated statements of operations.

The Company's advisory fees generally consist of a nonrefundable up-front fee and a success fee. The nonrefundable fee is recorded as deferred revenue upon receipt and recognized at a point in time when the performance obligation is satisfied, or when the transaction is deemed by management to be terminated. Management's judgment is required in determining when a transaction is considered to be terminated.

The substantial majority of the Company's advisory and underwriting fees (i.e., the success related advisory fee) are considered variable consideration and recognized when it is probable that the variable consideration will not be reversed in a future period. The variable consideration is considered to be constrained until satisfaction of the performance obligation. The Company's performance obligation is generally satisfied at a point in time upon the closing of a strategic transaction, completion of a financing or underwriting arrangement, or some other defined outcome. At this time, the Company has transferred control of the promised service and the customer obtains control. As these arrangements represent a single performance obligation, allocation of the transaction price is not necessary. The Company has elected to apply the following optional exemptions regarding disclosure of its remaining performance obligations: (i) the Company's performance obligation is part of a contract that has an original expected duration of one year or less and/or (ii) the variable consideration is allocated entirely to a wholly unsatisfied promise to transfer a distinct service that forms part of a single performance obligation.

Institutional Brokerage– Institutional brokerage revenues include (i) commissions received from customers for the execution of brokerage transactions in listed and over-the-counter (OTC) equity, fixed income and convertible debt securities, which are recognized at a point in time on the trade date because the customer has obtained the rights to the underlying security provided by the trade execution service, (ii) trading gains and losses, recorded on changes in the fair value of long and short security positions in the reporting period and (iii) fees received by the Company for equity research, which are generally recognized in the period received. The Company permits institutional customers to allocate a portion of their gross commissions to pay for research products and other services provided by third parties. The amounts allocated for those purposes are commonly referred to as soft dollar arrangements. As the Company is not acting as a principal in satisfying the performance obligation for these arrangements, expenses relating to soft dollars are netted against commission revenues and included in other liabilities and accrued expenses on the consolidated statements of financial condition.

Asset Management– Asset management fees include revenues the Company receives in connection with management and investment advisory services performed for separately managed accounts and various funds and partnerships. The performance obligation related to the transfer of these services is satisfied over time and the related fees are recognized under the output method, which reflects the fees that the Company has a right to invoice based on the services provided during the period. Fees are defined in client contracts as a percentage of portfolio assets under management. Amounts related to remaining performance obligations are not disclosed as the Company applies the output method.

Asset management revenues may also include performance fees. Performance fees, if earned, are recognized when it is probable that such revenue will not be reversed in a future period. For the Company's alternative asset management funds, management will consider such factors as the remaining assets and residual life of the fund to conclude whether it is probable that a significant reversal of revenue will not occur in the future. For the Company's traditional asset management funds, performance fees are earned when the investment return on assets under management exceeds certain benchmark targets or other performance targets over a specified measurement period (monthly, quarterly or annually). These performance fees are typically annual performance hurdles and recognized in the fourth quarter of the applicable year, or upon client liquidation.

Adoption of New Accounting Standards

Revenue Recognition

In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2014-09, "Revenue from Contracts with Customers (Topic 606)" ("ASU 2014-09"), which supersedes previous revenue recognition guidance, including most industry-specific guidance. ASU 2014-09, as amended, requires a company to recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods and services, and also requires enhanced disclosures.

The Company adopted this guidance effective as of January 1, 2018 under the modified retrospective method, in which the cumulative effect of applying the standard was recognized at the date of initial application. The cumulative effect adjustment that the Company recognized upon adoption as of January 1, 2018 was a decrease to retained earnings of $3.6 million, net of tax. The Company applied the guidance only to those contracts that were not completed at the date of initial application.

The previous broker dealer industry treatment of netting deal expenses with investment banking revenues was superseded under the new guidance. As a result of adopting ASU 2014-09, the Company now presents investment banking revenues gross of related client reimbursed deal expenses and deal-related expenses as non-interest expenses on the consolidated statements of operations, rather than the previous presentation of netting deal expenses incurred for completed investment banking deals within revenues. For the three months ended March 31, 2018, the Company reported higher investment banking revenues and higher non-compensation expenses of $5.1 million, respectively. This change did not impact earnings. In addition, the Company now defers the recognition of performance fees on its merchant banking, energy and senior living alternative asset management funds until such fees are no longer subject to reversal, which will cause a delay in the recognition of these fees as revenue. For the three months ended March 31, 2018, the amount of asset management revenue from performance fees that the Company would have recognized if not for this change was not material. With the exception of the above, the Company’s previous methods of recognizing investment banking revenues were not significantly impacted by the new guidance.

Recognition and Measurement of Financial Assets and Financial Liabilities

In January 2016, the FASB issued ASU No. 2016-01, "Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities" ("ASU 2016-01"). The amendments in ASU 2016-01 address certain aspects of the recognition, measurement, presentation and disclosure of financial instruments. ASU 2016-01 became effective for the Company as of January 1, 2018. There was no material impact to the Company's results of operations, financial position or disclosures upon adoption as the Company's financial instruments are already recorded at fair value.

Statement of Cash Flows

In August 2016, the FASB issued ASU No. 2016-15, "Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments" ("ASU 2016-15"). ASU 2016-15 clarifies how entities should classify certain cash receipts and cash payments on the statement of cash flows. The amendments in ASU 2016-15 became effective for the Company as of January 1, 2018, with retrospective application. There was no material impact to the Company's presentation of its consolidated statements of cash flows upon adoption of ASU 2016-15.

In November 2016, the FASB issued ASU No. 2016-18, "Statement of Cash Flows (Topic 230): Restricted Cash" ("ASU 2016-18"). Under ASU 2016-18, restricted cash will be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period amounts shown on the consolidated statements of cash flows. ASU 2016-18 became effective for the Company as of January 1, 2018, with retrospective application. As a registered broker dealer, Piper Jaffray is subject to Rule 15c3-3 of the Securities Exchange Act of 1934, which requires broker dealers carrying customer accounts to maintain cash or qualified securities in a segregated reserve account for the exclusive benefit of its customers. These accounts were previously classified as cash and cash equivalents segregated for regulatory purposes on the consolidated statements of financial condition. Subsequent to transitioning to a fully disclosed clearing model in 2017, Piper Jaffray no longer carries customer accounts and is no longer subject to Rule 15c3-3. The following table provides a reconciliation of cash, cash equivalents and restricted cash for all periods presented on the consolidated statements of cash flows:

	December 31,		March 31,		December 31,
(Dollars in thousands)	2017		2017		2016
Cash and cash equivalents	$	33,793	$	18,879	$	41,359
Cash and cash equivalents segregated for regulatory purposes	—		53,022		29,015
Cash, cash equivalents and restricted cash	$	33,793	$	71,901	$	70,374

Future Adoption of New Applicable Accounting Standards

Leases

In February 2016, the FASB issued ASU No. 2016-02, "Leases (Topic 842)" ("ASU 2016-02"). ASU 2016-02 requires lessees to recognize a right-of-use asset and lease liability on the consolidated statements of financial position and disclose key information about leasing arrangements. The recognition, measurement and presentation of expenses and cash flows arising from a lease by a lessee have not significantly changed from current U.S. GAAP. ASU 2016-02 is effective for annual and interim periods beginning after December 15, 2018. As of March 31, 2018, the Company had approximately 65 operating leases for office space with aggregate minimum lease commitments of $78.7 million. Upon adoption, this lease commitment will be reflected on the statement of financial condition as a right-of-use asset and a lease commitment liability. The Company is evaluating other service contracts which may include embedded leases, however, the Company does not expect these to be material. Upon adoption of ASU 2016-02, the Company does not expect material changes to the recognition of rent expense in its consolidated statements of operations. The impact of the new guidance on Piper Jaffray's net capital is expected to be minimal.

Financial Instruments – Credit Losses

In June 2016, the FASB issued ASU No. 2016-13, "Financial Instruments – Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments" ("ASU 2016-13"). The new guidance requires an entity to measure all expected credit losses for financial assets held at the reporting date based on historical experience, current conditions, and reasonable and supportable forecasts as opposed to delaying recognition until the loss was probable of occurring. ASU 2016-13 is effective for annual and interim periods beginning after December 15, 2019. Early adoption is permitted for annual and interim periods beginning after December 15, 2018. The Company does not expect the adoption of ASU 2016-13 to have a material impact on its consolidated financial statements.

XML

Financial Instruments and Other Inventory Positions Owned and Financial Instruments and Other Inventory Positions Sold, but Not Yet Purchased

3 Months Ended

Mar. 31, 2018

Financial Instruments Owned and Sold, Not yet Purchased [Abstract]

Financial Instruments and Other Inventory Positions Owned and Financial Instruments and Other Inventory Positions Sold, but Not Yet Purchased

Financial Instruments and Other Inventory Positions Owned and Financial Instruments and Other Inventory Positions Sold, but Not Yet Purchased

	March 31,		December 31,
(Dollars in thousands)	2018		2017
Financial instruments and other inventory positions owned:
Corporate securities:
Equity securities	$	16,009	$	51,896
Convertible securities	90,841		74,456
Fixed income securities	35,582		30,145
Municipal securities:
Taxable securities	50,346		67,699
Tax-exempt securities	449,016		744,241
Short-term securities	113,775		62,251
Mortgage-backed securities	284		481
U.S. government agency securities	258,684		317,318
U.S. government securities	299		9,317
Derivative contracts	18,967		25,573
Total financial instruments and other inventory positions owned	$	1,033,803	$	1,383,377
Financial instruments and other inventory positions sold, but not yet purchased:
Corporate securities:
Equity securities	$	77,542	$	101,517
Fixed income securities	29,998		30,292
U.S. government agency securities	23,674		49,077
U.S. government securities	185,010		213,312
Derivative contracts	4,245		5,029
Total financial instruments and other inventory positions sold, but not yet purchased	$	320,469	$	399,227

At March 31, 2018 and December 31, 2017, financial instruments and other inventory positions owned in the amount of $503.9 million and $720.0 million, respectively, had been pledged as collateral for short-term financings.

Financial instruments and other inventory positions sold, but not yet purchased represent obligations of the Company to deliver the specified security at the contracted price, thereby creating a liability to purchase the security in the market at prevailing prices. The Company is obligated to acquire the securities sold short at prevailing market prices, which may exceed the amount reflected on the consolidated statements of financial condition. The Company economically hedges changes in the market value of its financial instruments and other inventory positions owned using inventory positions sold, but not yet purchased, interest rate derivatives, credit default swap index contracts, U.S. treasury bond futures and exchange traded options.

Derivative Contract Financial Instruments

The Company uses interest rate swaps, interest rate locks, credit default swap index contracts, U.S. treasury bond futures and equity option contracts as a means to manage risk in certain inventory positions. The Company also enters into interest rate swaps to facilitate customer transactions. The following describes the Company's derivatives by the type of transaction or security the instruments are economically hedging.

Customer matched-book derivatives: The Company enters into interest rate derivative contracts in a principal capacity as a dealer to satisfy the financial needs of its customers. The Company simultaneously enters into an interest rate derivative contract with a third party for the same notional amount to hedge the interest rate and credit risk of the initial client interest rate derivative contract. In certain limited instances, the Company has only hedged interest rate risk with a third party, and retains uncollateralized credit risk as described below. The instruments use interest rates based upon either the London Interbank Offer Rate ("LIBOR") index or the Securities Industry and Financial Markets Association ("SIFMA") index.

Trading securities derivatives: The Company enters into interest rate derivative contracts and uses U.S. treasury bond futures to hedge interest rate and market value risks associated with its fixed income securities. These instruments use interest rates based upon either the Municipal Market Data ("MMD") index, LIBOR or the SIFMA index. The Company also enters into credit default swap index contracts to hedge credit risk associated with its taxable fixed income securities and option contracts to hedge market value risk associated with its convertible securities.

Derivatives are reported on a net basis by counterparty (i.e., the net payable or receivable for derivative assets and liabilities for a given counterparty) when a legal right of offset exists and on a net basis by cross product when applicable provisions are stated in master netting agreements. Cash collateral received or paid is netted on a counterparty basis, provided a legal right of offset exists. The total absolute notional contract amount, representing the absolute value of the sum of gross long and short derivative contracts, provides an indication of the volume of the Company's derivative activity and does not represent gains and losses. The following table presents the gross fair market value and the total absolute notional contract amount of the Company's outstanding derivative instruments, prior to counterparty netting, by asset or liability position:

	March 31, 2018						December 31, 2017
(Dollars in thousands)	Derivative		Derivative		Notional		Derivative		Derivative		Notional
Derivative Category	Assets (1)		Liabilities (2)		Amount		Assets (1)		Liabilities (2)		Amount
Interest rate
Customer matched-book	$	194,735	$	182,472	$	2,682,335	$	239,224	$	225,890	$	2,819,006
Trading securities	2,393		1,389		455,775		126		4,459		399,450
Equity options
Trading securities	—		—		—		6		—		9,635
	$	197,128	$	183,861	$	3,138,110	$	239,356	$	230,349	$	3,228,091

(1) Derivative assets are included within financial instruments and other inventory positions owned on the consolidated statements of financial condition.

(2) Derivative liabilities are included within financial instruments and other inventory positions sold, but not yet purchased on the consolidated statements of financial condition.

The Company's derivative contracts do not qualify for hedge accounting, therefore, unrealized gains and losses are recorded on the consolidated statements of operations. The gains and losses on the related economically hedged inventory positions are not disclosed below as they are not in qualifying hedging relationships. The following table presents the Company's unrealized gains/(losses) on derivative instruments:

		Three Months Ended
(Dollars in thousands)		March 31,
Derivative Category	Operations Category	2018			2017
Interest rate derivative contract	Investment banking	$	(795	)	$	(292	)
Interest rate derivative contract	Institutional brokerage	5,062			(14,738		)
Credit default swap index contract	Institutional brokerage	—			255
		$	4,267		$	(14,775	)

Credit risk associated with the Company's derivatives is the risk that a derivative counterparty will not perform in accordance with the terms of the applicable derivative contract. Credit exposure associated with the Company's derivatives is driven by uncollateralized market movements in the fair value of the contracts with counterparties and is monitored regularly by the Company's financial risk committee. The Company considers counterparty credit risk in determining derivative contract fair value. The majority of the Company's derivative contracts are substantially collateralized by its counterparties, who are major financial institutions. The Company has a limited number of counterparties who are not required to post collateral. Based on market movements, the uncollateralized amounts representing the fair value of the derivative contract can become material, exposing the Company to the credit risk of these counterparties. As of March 31, 2018, the Company had $17.0 million of uncollateralized credit exposure with these counterparties (notional contract amount of $179.9 million), including $12.9 million of uncollateralized credit exposure with one counterparty.

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Fair Value of Financial Instruments

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Fair Value of Financial Instruments

Fair Value of Financial Instruments

Based on the nature of the Company's business and its role as a "dealer" in the securities industry or as a manager of alternative asset management funds, the fair values of its financial instruments are determined internally. The Company's processes are designed to ensure that the fair values used for financial reporting are based on observable inputs wherever possible. In the event that observable inputs are not available, unobservable inputs are developed based on an evaluation of all relevant empirical market data, including prices evidenced by market transactions, interest rates, credit spreads, volatilities and correlations and other security-specific information. Valuation adjustments related to illiquidity or counterparty credit risk are also considered. In estimating fair value, the Company may utilize information provided by third party pricing vendors to corroborate internally-developed fair value estimates.

The Company employs specific control processes to determine the reasonableness of the fair value of its financial instruments. The Company's processes are designed to ensure that the internally-estimated fair values are accurately recorded and that the data inputs and the valuation techniques used are appropriate, consistently applied, and that the assumptions are reasonable and consistent with the objective of determining fair value. Individuals outside of the trading departments perform independent pricing verification reviews as of each reporting date. The Company has established parameters which set forth when the fair value of securities are independently verified. The selection parameters are generally based upon the type of security, the level of estimation risk of a security, the materiality of the security to the Company's financial statements, changes in fair value from period to period, and other specific facts and circumstances of the Company's securities portfolio. In evaluating the initial internally-estimated fair values made by the Company's traders, the nature and complexity of securities involved (e.g., term, coupon, collateral, and other key drivers of value), level of market activity for securities, and availability of market data are considered. The independent price verification procedures include, but are not limited to, analysis of trade data (both internal and external where available), corroboration to the valuation of positions with similar characteristics, risks and components, or comparison to an alternative pricing source, such as a discounted cash flow model. The Company's valuation committee, comprised of members of senior management and risk management, provides oversight and overall responsibility for the internal control processes and procedures related to fair value measurements.

The following is a description of the valuation techniques used to measure fair value.

Cash Equivalents

Cash equivalents include highly liquid investments with original maturities of 90 days or less. Actively traded money market funds are measured at their net asset value and classified as Level I.

Financial Instruments and Other Inventory Positions Owned

The Company records financial instruments and other inventory positions owned and financial instruments and other inventory positions sold, but not yet purchased at fair value on the consolidated statements of financial condition with unrealized gains and losses reflected on the consolidated statements of operations.

Equity securities – Exchange traded equity securities are valued based on quoted prices from the exchange for identical assets or liabilities as of the period-end date. To the extent these securities are actively traded and valuation adjustments are not applied, they are categorized as Level I. Non-exchange traded equity securities (principally hybrid preferred securities) are measured primarily using broker quotations, prices observed for recently executed market transactions and internally-developed fair value estimates based on observable inputs and are categorized within Level II of the fair value hierarchy.

Convertible securities – Convertible securities are valued based on observable trades, when available. Accordingly, these convertible securities are categorized as Level II.

Corporate fixed income securities – Fixed income securities include corporate bonds which are valued based on recently executed market transactions of comparable size, internally-developed fair value estimates based on observable inputs, or broker quotations. Accordingly, these corporate bonds are categorized as Level II.

Taxable municipal securities – Taxable municipal securities are valued using recently executed observable trades or market price quotations and therefore are generally categorized as Level II.

Tax-exempt municipal securities – Tax-exempt municipal securities are valued using recently executed observable trades or market price quotations and therefore are generally categorized as Level II. Certain illiquid tax-exempt municipal securities are valued using market data for comparable securities (maturity and sector) and management judgment to infer an appropriate current yield or other model-based valuation techniques deemed appropriate by management based on the specific nature of the individual security and are therefore categorized as Level III.

Short-term municipal securities – Short-term municipal securities include auction rate securities, variable rate demand notes, and other short-term municipal securities. Variable rate demand notes and other short-term municipal securities are valued using recently executed observable trades or market price quotations and therefore are generally categorized as Level II. Auction rate securities with limited liquidity are categorized as Level III and are valued using discounted cash flow models with unobservable inputs such as the Company's expected recovery rate on the securities.

Mortgage-backed securities – Mortgage-backed securities are valued using observable trades, when available. Certain mortgage-backed securities are valued using models where inputs to the model are directly observable in the market, or can be derived principally from or corroborated by observable market data. To the extent we hold, these mortgage-backed securities are categorized as Level II. Certain mortgage-backed securities collateralized by residential mortgages are valued using cash flow models that utilize unobservable inputs including credit default rates, prepayment rates, loss severity and valuation yields. As judgment is used to determine the range of these inputs, these mortgage-backed securities are categorized as Level III.

U.S. government agency securities – U.S. government agency securities include agency debt bonds and mortgage bonds. Agency debt bonds are valued by using either direct price quotes or price quotes for comparable bond securities and are categorized as Level II. Mortgage bonds include bonds secured by mortgages, mortgage pass-through securities, agency collateralized mortgage-obligation ("CMO") securities and agency interest-only securities. Mortgage pass-through securities, CMO securities and interest-only securities are valued using recently executed observable trades or other observable inputs, such as prepayment speeds and therefore are generally categorized as Level II. Mortgage bonds are valued using observable market inputs, such as market yields ranging from 293-348 basis points ("bps") on spreads over U.S. treasury securities, or models based upon prepayment expectations ranging from 0%-13% conditional prepayment rate ("CPR"). These securities are categorized as Level II.

U.S. government securities – U.S. government securities include highly liquid U.S. treasury securities which are generally valued using quoted market prices and therefore categorized as Level I. The Company does not transact in securities of countries other than the U.S. government.

Derivatives – Derivative contracts include interest rate swaps, interest rate locks, credit default swap index contracts, U.S. treasury bond futures and equity option contracts. These instruments derive their value from underlying assets, reference rates, indices or a combination of these factors. The Company's equity option derivative contracts are valued based on quoted prices from the exchange for identical assets or liabilities as of the period-end date. To the extent these contracts are actively traded and valuation adjustments are not applied, they are categorized as Level I. The Company's credit default swap index contracts are valued using market price quotations and are classified as Level II. The majority of the Company's interest rate derivative contracts, including both interest rate swaps and interest rate locks, are valued using market standard pricing models based on the net present value of estimated future cash flows. The valuation models used do not involve material subjectivity as the methodologies do not entail significant judgment and the pricing inputs are market observable, including contractual terms, yield curves and measures of volatility. These instruments are classified as Level II within the fair value hierarchy. Certain interest rate locks transact in less active markets and were valued using valuation models that included the previously mentioned observable inputs and certain unobservable inputs that required significant judgment, such as the premium over the MMD curve. These instruments are classified as Level III.

Investments

The Company's investments valued at fair value include equity investments in private companies and partnerships, investments in registered mutual funds, warrants of public and private companies and private company debt. Investments in registered mutual funds are valued based on quoted prices on active markets and classified as Level I. Company-owned warrants, which have a cashless exercise option, are valued based upon the Black-Scholes option-pricing model and certain unobservable inputs. The Company applies a liquidity discount to the value of its warrants in public and private companies. For warrants in private companies, valuation adjustments, based upon management's judgment, are made to account for differences between the measured security and the stock volatility factors of comparable companies. Company-owned warrants are reported as Level III assets. Investments in private companies are valued based on an assessment of each underlying security, considering rounds of financing, third party transactions and market-based information, including comparable company transactions, trading multiples (e.g., multiples of revenue and earnings before interest, taxes, depreciation and amortization ("EBITDA")) and changes in market outlook, among other factors. These securities are generally categorized as Level III.

Fair Value Option – The fair value option permits the irrevocable fair value option election on an instrument-by-instrument basis at initial recognition of an asset or liability or upon an event that gives rise to a new basis of accounting for that instrument. The fair value option was elected for certain merchant banking and other investments at inception to reflect economic events in earnings on a timely basis. Merchant banking and other equity investments of $15.0 million and $14.1 million, included within investments on the consolidated statements of financial condition, are accounted for at fair value and are classified as Level III assets at March 31, 2018 and December 31, 2017, respectively. The realized and unrealized net gains from fair value changes included in earnings as a result of electing to apply the fair value option to certain financial assets were $0.8 million and $0.5 million for the three months ended March 31, 2018 and 2017, respectively.

The following table summarizes quantitative information about the significant unobservable inputs used in the fair value measurement of the Company's Level III financial instruments as of March 31, 2018:

	Valuation			Weighted
	Technique	Unobservable Input	Range	Average
Assets:
Financial instruments and other inventory positions owned:
Derivative contracts:
Interest rate locks	Discounted cash flow	Premium over the MMD curve (1)	2 - 38 bps	23.8 bps
Investments at fair value:
Equity securities in private companies	Market approach	Revenue multiple (2)	2 - 5 times	4.2 times
		EBITDA multiple (2)	11 - 15 times	12.4 times
Liabilities:
Financial instruments and other inventory positions sold, but not yet purchased:
Derivative contracts:
Interest rate locks	Discounted cash flow	Premium over the MMD curve (1)	2 - 36 bps	13.6 bps

Sensitivity of the fair value to changes in unobservable inputs:

(1) Significant increase/(decrease) in the unobservable input in isolation would result in a significantly lower/(higher) fair value measurement.

(2) Significant increase/(decrease) in the unobservable input in isolation would result in a significantly higher/(lower) fair value measurement.

The following table summarizes the valuation of the Company's financial instruments by pricing observability levels defined in FASB Accounting Standards Codification Topic 820, "Fair Value Measurement" ("ASC 820") as of March 31, 2018:

								Counterparty
								and Cash
								Collateral
(Dollars in thousands)	Level I		Level II		Level III			Netting (1)			Total
Assets:
Financial instruments and other inventory positions owned:
Corporate securities:
Equity securities	$	1,360	$	14,649	$	—		$	—		$	16,009
Convertible securities	—		90,841		—			—			90,841
Fixed income securities	—		35,582		—			—			35,582
Municipal securities:
Taxable securities	—		50,346		—			—			50,346
Tax-exempt securities	—		449,016		—			—			449,016
Short-term securities	—		113,056		719			—			113,775
Mortgage-backed securities	—		—		284			—			284
U.S. government agency securities	—		258,684		—			—			258,684
U.S. government securities	299		—		—			—			299
Derivative contracts	—		194,984		2,144			(178,161		)	18,967
Total financial instruments and other inventory positions owned	1,659		1,207,158		3,147			(178,161		)	1,033,803
Cash equivalents	1,896		—		—			—			1,896
Investments at fair value	39,953		—		121,637		(2)	—			161,590
Total assets	$	43,508	$	1,207,158	$	124,784		$	(178,161	)	$	1,197,289
Liabilities:
Financial instruments and other inventory positions sold, but not yet purchased:
Corporate securities:
Equity securities	$	74,239	$	3,303	$	—		$	—		$	77,542
Fixed income securities	—		29,998		—			—			29,998
U.S. government agency securities	—		23,674		—			—			23,674
U.S. government securities	185,010		—		—			—			185,010
Derivative contracts	—		182,472		1,389			(179,616		)	4,245
Total financial instruments and other inventory positions sold, but not yet purchased	$	259,249	$	239,447	$	1,389		$	(179,616	)	$	320,469

(1) Represents cash collateral and the impact of netting on a counterparty basis. The Company had no securities posted as collateral to its counterparties.

(2) Noncontrolling interests of $47.0 million are attributable to third party ownership in consolidated merchant banking and senior living funds.

The following table summarizes the valuation of the Company's financial instruments by pricing observability levels defined in ASC 820 as of December 31, 2017:

								Counterparty
								and Cash
								Collateral
(Dollars in thousands)	Level I		Level II		Level III			Netting (1)			Total
Assets:
Financial instruments and other inventory positions owned:
Corporate securities:
Equity securities	$	1,863	$	50,033	$	—		$	—		$	51,896
Convertible securities	—		74,456		—			—			74,456
Fixed income securities	—		30,145		—			—			30,145
Municipal securities:
Taxable securities	—		67,699		—			—			67,699
Tax-exempt securities	—		743,541		700			—			744,241
Short-term securities	—		61,537		714			—			62,251
Mortgage-backed securities	—		—		481			—			481
U.S. government agency securities	—		317,318		—			—			317,318
U.S. government securities	9,317		—		—			—			9,317
Derivative contracts	6		239,224		126			(213,783		)	25,573
Total financial instruments and other inventory positions owned	11,186		1,583,953		2,021			(213,783		)	1,383,377
Cash equivalents	3,782		—		—			—			3,782
Investments at fair value	39,504		—		126,060		(2)	—			165,564
Total assets	$	54,472	$	1,583,953	$	128,081		$	(213,783	)	$	1,552,723
Liabilities:
Financial instruments and other inventory positions sold, but not yet purchased:
Corporate securities:
Equity securities	$	91,934	$	9,583	$	—		$	—		$	101,517
Fixed income securities	—		30,292		—			—			30,292
U.S. government agency securities	—		49,077		—			—			49,077
U.S. government securities	213,312		—		—			—			213,312
Derivative contracts	—		225,916		4,433			(225,320		)	5,029
Total financial instruments and other inventory positions sold, but not yet purchased	$	305,246	$	314,868	$	4,433		$	(225,320	)	$	399,227

(1) Represents cash collateral and the impact of netting on a counterparty basis. The Company had no securities posted as collateral to its counterparties.

(2) Noncontrolling interests of $44.4 million are attributable to third party ownership in consolidated merchant banking and senior living funds.

The Company's Level III assets were $124.8 million and $128.1 million, or 10.4 percent and 8.2 percent of financial instruments measured at fair value at March 31, 2018 and December 31, 2017, respectively. The value of transfers between levels are recognized at the beginning of the reporting period. There were no significant transfers between Level I, Level II or Level III for the three months ended March 31, 2018.

The following tables summarize the changes in fair value associated with Level III financial instruments held at the beginning or end of the periods presented:

																						Unrealized gains/
																						(losses) for assets/
	Balance at													Realized			Unrealized			Balance at		liabilities held at
	December 31,								Transfers		Transfers			gains/			gains/			March 31,		March 31,
(Dollars in thousands)	2017		Purchases			Sales			in		out			(losses) (1)			(losses) (1)			2018		2018 (1)
Assets:
Financial instruments and other inventory positions owned:
Municipal securities:
Tax-exempt securities	$	700	$	—		$	—		$	—	$	(700	)	$	—		$	—		$	—	$	—
Short-term securities	714		—			—			—		—			—			5			719		5
Mortgage-backed securities	481		—			(5		)	—		—			—			(192		)	284		3
Derivative contracts	126		—			(1,760		)	—		—			1,760			2,018			2,144		2,144
Total financial instruments and other inventory positions owned	2,021		—			(1,765		)	—		(700		)	1,760			1,831			3,147		2,152
Investments at fair value	126,060		601			(4,154		)	—		—			3,402			(4,272		)	121,637		(869		)
Total assets	$	128,081	$	601		$	(5,919	)	$	—	$	(700	)	$	5,162		$	(2,441	)	$	124,784	$	1,283
Liabilities:
Financial instruments and other inventory positions sold, but not yet purchased:
Derivative contracts	$	4,433	$	(1,305	)	$	3,226		$	—	$	—		$	(1,921	)	$	(3,044	)	$	1,389	$	1,389
Total financial instruments and other inventory positions sold, but not yet purchased	$	4,433	$	(1,305	)	$	3,226		$	—	$	—		$	(1,921	)	$	(3,044	)	$	1,389	$	1,389

(1) Realized and unrealized gains/(losses) related to financial instruments, with the exception of customer matched-book derivatives, are reported in institutional brokerage on the consolidated statements of operations. Realized and unrealized gains/(losses) related to customer matched-book derivatives are reported in investment banking. Realized and unrealized gains/(losses) related to investments are reported in investment banking revenues or investment income on the consolidated statements of operations.

																				Unrealized gains/
																				(losses) for assets/
	Balance at												Realized		Unrealized			Balance at		liabilities held at
	December 31,								Transfers		Transfers		gains/		gains/			March 31,		March 31,
(Dollars in thousands)	2016		Purchases			Sales			in		out		(losses) (1)		(losses) (1)			2017		2017 (1)
Assets:
Financial instruments and other inventory positions owned:
Municipal securities:
Taxable securities	$	2,686	$	—		$	(2,703	)	$	—	$	—	$	716	$	(699	)	$	—	$	—
Tax-exempt securities	1,077		—			—			—		—		—		40			1,117		40
Short-term securities	744		—			—			—		—		—		—			744		—
Mortgage-backed securities	5,364		996			(790		)	—		—		314		(393		)	5,491		(71		)
Derivative contracts	13,952		240			(10,885		)	—		—		10,645		(12,319		)	1,633		(347		)
Total financial instruments and other inventory positions owned	23,823		1,236			(14,378		)	—		—		11,675		(13,371		)	8,985		(378		)
Investments at fair value	123,319		6,587			(24,469		)	—		—		8,656		(3,400		)	110,693		6,493
Total assets	$	147,142	$	7,823		$	(38,847	)	$	—	$	—	$	20,331	$	(16,771	)	$	119,678	$	6,115
Liabilities:
Financial instruments and other inventory positions sold, but not yet purchased:
Derivative contracts	$	1,487	$	(719	)	$	—		$	—	$	—	$	719	$	2,419		$	3,906	$	3,061
Total financial instruments and other inventory positions sold, but not yet purchased	$	1,487	$	(719	)	$	—		$	—	$	—	$	719	$	2,419		$	3,906	$	3,061

(1) Realized and unrealized gains/(losses) related to financial instruments, with the exception of customer matched-book derivatives, are reported in institutional brokerage on the consolidated statements of operations. Realized and unrealized gains/(losses) related to customer matched-book derivatives are reported in investment banking. Realized and unrealized gains/(losses) related to investments are reported in investment banking revenues or investment income on the consolidated statements of operations.

The carrying values of the Company's cash, receivables and payables either from or to brokers, dealers and clearing organizations and short-term financings approximate fair value due to their liquid or short-term nature.

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Variable Interest Entities

3 Months Ended

Mar. 31, 2018

Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net [Abstract]

Variable Interest Entities

Variable Interest Entities ("VIEs")

The Company has investments in and/or acts as the managing partner of various partnerships, limited liability companies, and registered mutual funds. These entities were established for the purpose of investing in securities of public or private companies, or municipal debt obligations, or providing financing to senior living facilities, and were initially financed through the capital commitments or seed investments of the members.

VIEs are entities in which equity investors lack the characteristics of a controlling financial interest or do not have sufficient equity at risk for the entity to finance its activities. The determination as to whether an entity is a VIE is based on the structure and nature of each entity. The Company also considers other characteristics such as the power through voting rights or similar rights to direct the activities of an entity that most significantly impact the entity's economic performance and how the entity is financed.

The Company is required to consolidate all VIEs for which it is considered to be the primary beneficiary. The determination as to whether the Company is considered to be the primary beneficiary is based on whether the Company has both the power to direct the activities of the VIE that most significantly impact the entity's economic performance and the obligation to absorb losses or the right to receive benefits of the VIE that could potentially be significant to the VIE.

Consolidated VIEs

The Company's consolidated VIEs at March 31, 2018 included certain alternative asset management funds in which the Company has an investment and, as the managing partner, is deemed to have both the power to direct the most significant activities of the funds and the right to receive benefits (or the obligation to absorb losses) that could potentially be significant to these funds.

The following table presents information about the carrying value of the assets and liabilities of the VIEs which are consolidated by the Company and included on the consolidated statements of financial condition at March 31, 2018. The assets can only be used to settle the liabilities of the respective VIE, and the creditors of the VIEs do not have recourse to the general credit of the Company. One of these VIEs has $25.0 million of bank line financing available with an interest rate based on prime plus an applicable margin. The assets and liabilities are presented prior to consolidation, and thus a portion of these assets and liabilities are eliminated in consolidation.

	Alternative Asset
(Dollars in thousands)	Management Funds
Assets:
Receivables from brokers, dealers and clearing organizations	$	3,223
Financial instruments and other inventory positions owned and pledged as collateral	216,884
Investments	106,515
Other assets	6,780
Total assets	$	333,402
Liabilities:
Short-term financing	$	136,284
Payables to brokers, dealers and clearing organizations	6,169
Financial instruments and other inventory positions sold, but not yet purchased	51,531
Other liabilities and accrued expenses	8,846
Total liabilities	$	202,830

The Company has investments in a grantor trust which was established as part of a nonqualified deferred compensation plan. The Company is the primary beneficiary of the grantor trust. Accordingly, the assets and liabilities of the grantor trust are consolidated by the Company on the consolidated statements of financial condition. See Note 12 for additional information on the nonqualified deferred compensation plan.

Nonconsolidated VIEs

The Company determined it is not the primary beneficiary of certain VIEs and accordingly does not consolidate them. These VIEs had net assets approximating $0.5 billion and $0.6 billion at March 31, 2018 and December 31, 2017, respectively. The Company's exposure to loss from these VIEs is $6.4 million, which is the carrying value of its capital contributions recorded in investments on the consolidated statements of financial condition at March 31, 2018. The Company had no liabilities related to these VIEs at March 31, 2018 and December 31, 2017, respectively. Furthermore, the Company has not provided financial or other support to these VIEs that it was not previously contractually required to provide as of March 31, 2018.

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Receivables from and Payables to Brokers, Dealers and Clearing Organizations

3 Months Ended

Mar. 31, 2018

Brokers and Dealers [Abstract]

Receivables from and Payables to Brokers, Dealers and Clearing Organizations

Receivables from and Payables to Brokers, Dealers and Clearing Organizations

	March 31,		December 31,
(Dollars in thousands)	2018		2017
Receivable arising from unsettled securities transactions	$	3,223	$	9,218
Receivable from clearing organizations	7,991		109,270
Deposits with clearing organizations	14,745		11,019
Receivable from brokers and dealers	16,011		12,041
Other	4,332		3,846
Total receivables from brokers, dealers and clearing organizations	$	46,302	$	145,394

	March 31,		December 31,
(Dollars in thousands)	2018		2017
Payable arising from unsettled securities transactions	$	6,169	$	808
Payable to clearing organizations	25,655		—
Payable to brokers and dealers	1,758		18,584
Total payables to brokers, dealers and clearing organizations	$	33,582	$	19,392

As discussed in Note 1, Piper Jaffray transitioned from a self clearing securities broker dealer to a fully disclosed clearing model in 2017. Under the Company's fully disclosed clearing agreement, the majority of its securities inventories and all of its customer activities are held by or cleared through Pershing. The Company has also established an arrangement to obtain financing from Pershing related to the majority of its trading activities. Financing under this arrangement is secured primarily by securities, and collateral limitations could reduce the amount of funding available under this arrangement. The funding is at the discretion of Pershing and could be denied. The Company's clearing arrangement activities are recorded net from trading activity. The Company's fully disclosed clearing agreement includes a covenant requiring Piper Jaffray to maintain excess net capital of $120 million.

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Investments

3 Months Ended

Mar. 31, 2018

Investments, All Other Investments [Abstract]

Investments

Investments

The Company's investments include investments in private companies and partnerships, registered mutual funds, warrants of public and private companies and private company debt.

	March 31,			December 31,
(Dollars in thousands)	2018			2017
Investments at fair value	$	161,590		$	165,564
Investments at cost	1,661			2,416
Investments accounted for under the equity method	6,488			8,232
Total investments	169,739			176,212
Less investments attributable to noncontrolling interests (1)	(47,015		)	(44,397		)
	$	122,724		$	131,815

(1) Noncontrolling interests are attributable to third party ownership in consolidated merchant banking and senior living funds.

At March 31, 2018, investments carried on a cost basis had an estimated fair market value of $3.0 million. Because valuation estimates were based upon management's judgment, investments carried at cost would be categorized as Level III assets in the fair value hierarchy, if they were carried at fair value.

Investments accounted for under the equity method include general and limited partnership interests. The carrying value of these investments is based on the investment vehicle's net asset value. The net assets of investment partnerships consist of investments in both marketable and non-marketable securities. The underlying investments held by such partnerships are valued based on the estimated fair value determined by management in the Company's capacity as general partner or investor and, in the case of investments in unaffiliated investment partnerships, are based on financial statements prepared by the unaffiliated general partners.

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Other Assets

3 Months Ended

Mar. 31, 2018

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Other Assets

Other Assets

	March 31,		December 31,
(Dollars in thousands)	2018		2017
Fee receivables	$	23,602	$	20,884
Income tax receivables	19,193		—
Accrued interest receivables	9,838		6,981
Forgivable loans, net	7,756		7,452
Prepaid expenses	6,439		6,769
Secured loan receivables	2,975		2,975
Other	7,621		9,773
Total other assets	$	77,424	$	54,834

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Short-Term Financing

3 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

Short-Term Financing

Short-Term Financing

	Outstanding Balance				Weighted Average Interest Rate
	March 31,		December 31,		March 31,		December 31,
(Dollars in thousands)	2018		2017		2018		2017
Commercial paper (secured)	$	49,970	$	49,974	2.70	%	2.32	%
Prime broker arrangements	136,284		239,963		2.50	%	2.23	%
Total short-term financing	$	186,254	$	289,937

The Company issues secured commercial paper to fund a portion of its securities inventory. The commercial paper notes ("CP Notes") can be issued with maturities of 27 days to 270 days from the date of issuance. The CP Notes are currently issued under two separate programs, CP Series A and CP Series II A, and are secured by different inventory classes. As of March 31, 2018, the weighted average maturity of outstanding CP Notes was 8 days. The CP Notes are interest bearing or sold at a discount to par with an interest rate based on LIBOR plus an applicable margin. CP Series II A includes a covenant that requires the Company's U.S. broker dealer subsidiary to maintain excess net capital of $100 million.

The Company has established arrangements to obtain financing with prime brokers related to its municipal bond fund and convertible securities. Financing under these arrangements is primarily secured by municipal and convertible securities, and collateral limitations could reduce the amount of funding available under the arrangements. Prime broker financing activities are recorded net of receivables from trading activity. The funding is at the discretion of the prime brokers subject to a notice period.

The Company has both committed and uncommitted short-term bank line financing available on a secured basis. The Company uses these credit facilities in the ordinary course of business to fund a portion of its daily operations and the amount borrowed under these credit facilities varies daily based on the Company's funding needs.

The Company's committed short-term bank line financing at March 31, 2018 consisted of a one-year $200 million committed revolving credit facility with U.S. Bank, N.A., which was renewed in December 2017. Advances under this facility are secured by certain marketable securities. The facility includes a covenant that requires the Company's U.S. broker dealer subsidiary to maintain minimum net capital of $120 million, and the unpaid principal amount of all advances under this facility will be due on December 14, 2018. The Company pays a nonrefundable commitment fee on the unused portion of the facility on a quarterly basis. At March 31, 2018, the Company had no advances against this line of credit.

The Company's uncommitted secured line at March 31, 2018 totaled $85 million and is dependent on having appropriate collateral, as determined by the bank agreement, to secure an advance under the line. The availability of the Company's uncommitted line is subject to approval by the bank each time an advance is requested and may be denied. At March 31, 2018, the Company had no advances against this line of credit.

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Contingencies, Commitments and Guarantees

3 Months Ended

Mar. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Contingencies, Commitments and Guarantees

Contingencies, Commitments and Guarantees

The Company has been named as a defendant in various legal actions, including complaints and litigation and arbitration claims, arising from its business activities. Such actions include claims related to securities brokerage and investment banking activities, and certain class actions that primarily allege violations of securities laws and seek unspecified damages, which could be substantial. Also, the Company is involved from time to time in investigations and proceedings by governmental agencies and self-regulatory organizations ("SROs") which could result in adverse judgments, settlement, penalties, fines or other relief.

The Company has established reserves for potential losses that are probable and reasonably estimable that may result from pending and potential legal actions, investigations and regulatory proceedings. Reasonably possible losses in excess of amounts accrued at March 31, 2018 are not material. In many cases, however, it is inherently difficult to determine whether any loss is probable or even possible or to estimate the amount or range of any potential loss, particularly where proceedings may be in relatively early stages or where plaintiffs are seeking substantial or indeterminate damages. Matters frequently need to be more developed before a loss or range of loss can reasonably be estimated.

Given uncertainties regarding the timing, scope, volume and outcome of pending and potential legal actions, investigations and regulatory proceedings and other factors, the amounts of reserves and ranges of reasonably possible losses are difficult to determine and of necessity subject to future revision. Subject to the foregoing, management of the Company believes, based on currently available information, after consultation with outside legal counsel and taking into account its established reserves, that pending legal actions, investigations and regulatory proceedings will be resolved with no material adverse effect on the consolidated statements of financial condition, results of operations or cash flows of the Company. However, if during any period a potential adverse contingency should become probable or resolved for an amount in excess of the established reserves, the results of operations and cash flows in that period and the financial condition as of the end of that period could be materially adversely affected. In addition, there can be no assurance that material losses will not be incurred from claims that have not yet been brought to the Company's attention or are not yet determined to be reasonably possible.

Operating Lease Commitments

The Company leases office space throughout the United States and in a limited number of foreign countries where the Company's international operations reside. Aggregate minimum lease commitments under operating leases as of March 31, 2018 are as follows:

(Dollars in thousands)
Remainder of 2018	$	11,352
2019	13,748
2020	13,569
2021	9,245
2022	7,902
Thereafter	22,859
Total	$	78,675

Investment Commitments

As of March 31, 2018, the Company had commitments to invest approximately $80.3 million in limited partnerships or limited liability companies that make direct or indirect equity or debt investments in companies or provide financing for senior living facilities.

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Shareholders' Equity

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Shareholders' Equity

Shareholders' Equity

Share Repurchases

Effective September 30, 2017, the Company's board of directors authorized the repurchase of up to $150.0 million in common shares through September 30, 2019. No repurchases have been made in conjunction with this authorization through March 31, 2018.

Effective August 14, 2015, the Company's board of directors authorized the repurchase of up to $150.0 million in common shares through September 30, 2017. During the three months ended March 31, 2017, the Company repurchased 27,530 shares at an average price of $72.63 per share for an aggregate purchase price of $2.0 million related to this authorization.

The Company also purchases shares of common stock from restricted stock award recipients upon the award vesting as recipients sell shares to meet their employment tax obligations. The Company purchased 187,860 shares and 230,097 shares, or $16.8 million and $17.8 million of the Company's common stock for this purpose during the three months ended March 31, 2018 and 2017, respectively.

Issuance of Shares

The Company issues common shares out of treasury stock as a result of employee restricted share vesting and exercise transactions as discussed in Note 12. During the three months ended March 31, 2018 and 2017, the Company issued 574,594 shares and 650,155 shares, respectively, related to these obligations.

Dividends

Beginning in 2017, the Company initiated the payment of a quarterly cash dividend to holders of its common stock, which includes unvested restricted shares. In addition, the Company's board of directors approved a dividend policy with the intention of returning a metric based on net income from the previous fiscal year. This includes an annual special cash dividend, payable in the first quarter of each year, beginning in 2018.

During the three months ended March 31, 2018, the Company declared and paid both a quarterly and annual special cash dividend on its common stock of $0.375 and $1.62 per share, respectively, totaling $30.6 million.

On April 27, 2018, the board of directors declared a cash dividend of $0.375 per share to be paid on June 15, 2018, to shareholders of record as of the close of business on May 25, 2018.

Noncontrolling Interests

The consolidated financial statements include the accounts of Piper Jaffray Companies, its wholly owned subsidiaries and other entities in which the Company has a controlling financial interest. Noncontrolling interests represent equity interests in consolidated entities that are not attributable, either directly or indirectly, to Piper Jaffray Companies. Noncontrolling interests include the minority equity holders' proportionate share of the equity in merchant banking funds of $41.8 million and a senior living fund aggregating $5.2 million as of March 31, 2018. As of December 31, 2017, noncontrolling interests included the minority equity holders' proportionate share of the equity in merchant banking funds of $42.7 million and a senior living fund aggregating $5.2 million.

Ownership interests in entities held by parties other than the Company's common shareholders are presented as noncontrolling interests within shareholders' equity, separate from the Company's own equity. Revenues, expenses and net income or loss are reported on the consolidated statements of operations on a consolidated basis, which includes amounts attributable to both the Company's common shareholders and noncontrolling interests. Net income or loss is then allocated between the Company and noncontrolling interests based upon their relative ownership interests. Net income applicable to noncontrolling interests is deducted from consolidated net income to determine net income applicable to the Company. There was no other comprehensive income or loss attributed to noncontrolling interests for the three months ended March 31, 2018 and 2017, respectively.

The following table presents the changes in shareholders' equity for the three months ended March 31, 2018:

	Common		Common						Total
	Shares		Shareholders'			Noncontrolling			Shareholders'
(Amounts in thousands, except share amounts)	Outstanding		Equity			Interests			Equity
Balance at December 31, 2017	12,911,149		$	693,332		$	47,903		$	741,235
Net income	—		10,603			16			10,619
Dividends	—		(30,575		)	—			(30,575		)
Amortization/issuance of restricted stock	—		34,416			—			34,416
Issuance of treasury shares for restricted stock vestings	574,594		—			—			—
Repurchase of common stock for employee tax withholding	(187,860	)	(16,797		)	—			(16,797		)
Shares reserved/issued for director compensation	942		81			—			81
Other comprehensive income	—		529			—			529
Cumulative effect upon adoption of new accounting standard, net of tax (1)	—		(3,597		)	—			(3,597		)
Fund capital distributions, net	—		—			(904		)	(904		)
Balance at March 31, 2018	13,298,825		$	687,992		$	47,015		$	735,007

(1) Cumulative effect adjustment upon adoption of ASU 2014-09, as amended. See Note 2 for further discussion.

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Compensation Plans

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Compensation Plans

Compensation Plans

Stock-Based Compensation Plans

The Company maintains two stock-based compensation plans, the Piper Jaffray Companies Amended and Restated 2003 Annual and Long-Term Incentive Plan (the "Incentive Plan") and the 2016 Employment Inducement Award Plan (the "Inducement Plan"). The Company's equity awards are recognized on the consolidated statements of operations at grant date fair value over the service period of the award, less forfeitures.

The following table provides a summary of the Company's outstanding equity awards (in shares or units) as of March 31, 2018:

Incentive Plan
Restricted Stock
Annual grants	666,665
Sign-on grants	216,105
	882,770
Inducement Plan
Restricted Stock	260,231
Total restricted stock related to compensation	1,143,001
Simmons Deal Consideration (1)	783,529
Total restricted stock outstanding	1,926,530
Incentive Plan
Restricted Stock Units
Leadership grants	298,568
Incentive Plan
Stock Options	81,667

(1) The Company issued restricted stock with service conditions as part of deal consideration for the acquisition of Simmons & Company International ("Simmons") on February 26, 2016.

Incentive Plan

The Incentive Plan permits the grant of equity awards, including restricted stock, restricted stock units and non-qualified stock options, to the Company's employees and directors for up to 8.2 million shares of common stock (0.7 million shares remained available for future issuance under the Incentive Plan as of March 31, 2018). The Company believes that such awards help align the interests of employees and directors with those of shareholders and serve as an employee retention tool. The Incentive Plan provides for accelerated vesting of awards if there is a severance event, a change in control of the Company (as defined in the Incentive Plan), in the event of a participant's death, and at the discretion of the compensation committee of the Company's board of directors.

Restricted Stock Awards

Restricted stock grants are valued at the market price of the Company's common stock on the date of grant and are amortized over the requisite service period. The Company grants shares of restricted stock to employees as part of year-end compensation ("Annual Grants") and upon initial hiring or as a retention award ("Sign-on Grants").

The Company's Annual Grants are made each year in February. Annual Grants vest ratably over three years in equal installments. The Annual Grants provide for continued vesting after termination of employment, so long as the employee does not violate certain post-termination restrictions set forth in the award agreement or any agreements entered into upon termination. The Company determined the service inception date precedes the grant date for the Annual Grants, and that the post-termination restrictions do not meet the criteria for an in-substance service condition, as defined by FASB Accounting Standards Codification Topic 718, "Compensation — Stock Compensation." Accordingly, restricted stock granted as part of the Annual Grants is expensed in the one-year period in which those awards are deemed to be earned, which is generally the calendar year preceding the February grant date. For example, the Company recognized compensation expense during fiscal 2017 for its February 2018 Annual Grant. If an equity award related to the Annual Grants is forfeited as a result of violating the post-termination restrictions, the lower of the fair value of the award at grant date or the fair value of the award at the date of forfeiture is recorded within the consolidated statements of operations as a reversal of compensation expense.

Sign-on Grants are used as a recruiting tool for new employees and are issued to current employees as a retention tool. These awards have both cliff and ratable vesting terms, and the employees must fulfill service requirements in exchange for rights to the awards. Compensation expense is amortized on a straight-line basis from the grant date over the requisite service period, generally one to five years. Employees forfeit unvested shares upon termination of employment and a reversal of compensation expense is recorded.

Annually, the Company grants stock to its non-employee directors. The stock-based compensation paid to non-employee directors is fully expensed on the grant date and included within outside services expense on the consolidated statements of operations.

Restricted Stock Units

The Company grants restricted stock units to its leadership team ("Leadership Grants").

2018 and 2017 Leadership Grants

Restricted stock units granted in 2018 and 2017 will vest and convert to shares of common stock at the end of each 36-month performance period only if the Company satisfies predetermined performance and/or market conditions over the performance period. Under the terms of these awards, the number of units that will actually vest and convert to shares will be based on the extent to which the Company achieves specified targets during each performance period. The maximum payout leverage under these grants is 150 percent.

Up to 75 percent of the award can be earned based on the Company achieving certain average adjusted return on equity targets, as defined in the terms of the award agreements. The fair value of this portion of the award was based on the closing price of the Company's common stock on the grant date. If the Company determines that it is probable that the performance condition will be achieved, compensation expense is amortized on a straight-line basis over the 36-month performance period. The probability that the performance condition will be achieved is reevaluated each reporting period with changes in estimated outcomes accounted for using a cumulative effect adjustment to compensation expense. Compensation expense will be recognized only if the performance condition is met. Employees forfeit unvested restricted stock units upon termination of employment with a corresponding reversal of compensation expense. As of March 31, 2018, the Company has determined that the performance condition is probable of achieving 50 percent of the 2018 award and 75 percent of the 2017 award.

Up to 75 percent of the award can be earned based on the Company's total shareholder return relative to members of a predetermined peer group. The market condition must be met for the awards to vest and compensation cost will be recognized regardless if the market condition is satisfied. Compensation expense is amortized on a straight-line basis over the 36-month requisite service period. Employees forfeit unvested restricted stock units upon termination of employment with a corresponding reversal of compensation expense. For this portion of the awards, the fair value on the grant date was determined using a Monte Carlo simulation with the following assumptions:

	Risk-free	Expected Stock
Grant Year	Interest Rate	Price Volatility
2018	2.40%	34.8%
2017	1.62%	35.9%

Because the market condition portion of the awards vesting depend on the Company's total shareholder return relative to a peer group, the valuation modeled the performance of the peer group as well as the correlation between the Company and the peer group. The expected stock price volatility assumptions were determined using historical volatility, as correlation coefficients can only be developed through historical volatility. The risk-free interest rates were determined based on three-year U.S. Treasury bond yields.

In the fourth quarter of 2017, the compensation committee of the Company's board of directors included defined retirement provisions in its Leadership Grants, beginning with the February 2018 grant. Certain grantees meeting defined age and service requirements will be fully vested in the awards as long as performance and post-termination obligations are met throughout the performance period. These retirement-eligible grants are expensed in the period in which those awards are deemed to be earned, which is the calendar year preceding the February grant date. For example, the Company recognized compensation expense for retirement-eligible grantees in fiscal 2017 for its February 2018 Leadership Grant.

Leadership Grants Prior to 2017

Restricted stock units granted prior to 2017 contain market condition criteria and will vest and convert to shares of common stock at the end of each 36-month performance period only if the Company's stock performance satisfies predetermined market conditions over the performance period. Under the terms of the grants, the number of units that will vest and convert to shares will be based on the Company's stock performance achieving specified targets during each performance period. Compensation expense is recognized over each 36-month performance period.

Up to 50 percent of these awards can be earned based on the Company's total shareholder return relative to members of a predetermined peer group and up to 50 percent of the awards can be earned based on the Company's total shareholder return. The fair value of the awards on the grant date was determined using a Monte Carlo simulation with the following assumptions pursuant to the methodology above:

	Risk-free	Expected Stock
Grant Year	Interest Rate	Price Volatility
2016	0.98%	34.9%
2015	0.90%	29.8%

Stock Options

On February 15, 2018, the Company granted options to certain executive officers. These options are expensed on a straight-line basis over the required service period of five years, based on the estimated fair value of the award on the date of grant. The exercise price per share is equal to the closing price on the date of grant plus ten percent. These options are subject to graded vesting, beginning on the third anniversary of the grant date, so long as the employee remains continuously employed by the Company. The maximum term of these stock options is ten years.

The fair value of this stock option award was estimated on the date of grant using the Black-Scholes option-pricing model with the following assumptions:

Risk-free interest rate	2.82%
Dividend yield	3.22%
Expected stock price volatility	37.20%
Expected life of options (in years)	7.0
Fair value of options granted	$24.49

The risk-free interest rate assumption was based on the U.S. Treasury bond yield with a maturity equal to the expected life of the options. The dividend yield assumption was based on the assumed dividend payout over the expected life of the options. The expected stock price volatility assumption was determined using historical volatility, as correlation coefficients can only be developed through historical volatility.

Inducement Plan

The Company established the Inducement Plan in conjunction with the acquisition of Simmons. The Company granted $11.6 million (286,776 shares) in restricted stock under the Inducement Plan on May 16, 2016. These shares cliff vest on May 16, 2019. Inducement Plan awards are amortized as compensation expense on a straight-line basis over the vesting period. Employees forfeit unvested Inducement Plan shares upon termination of employment and a reversal of compensation expense is recorded.

Stock-Based Compensation Activity

The Company recorded stock-based compensation expense of $8.9 million and $0.1 million for the three months ended March 31, 2018 and 2017, respectively. Forfeitures were immaterial for the three months ended March 31, 2018, and $1.7 million for the three months ended March 31, 2017. The tax benefit related to stock-based compensation expense totaled $1.2 million for the three months ended March 31, 2018, and tax expense totaled $0.6 million for the three months ended March 31, 2017.

The following table summarizes the changes in the Company's unvested restricted stock:

	Unvested		Weighted Average
	Restricted Stock		Grant Date
	(in Shares)		Fair Value
December 31, 2017	2,225,617		$	46.40
Granted	276,437		90.00
Vested	(574,594	)	50.58
Canceled	(930	)	35.86
March 31, 2018	1,926,530		$	51.41

The following table summarizes the changes in the Company's unvested restricted stock units:

	Unvested	Weighted Average
	Restricted	Grant Date
	Stock Units	Fair Value
December 31, 2017	244,772	$	27.89
Granted	53,796	92.93
Vested	—	—
Canceled	—	—
March 31, 2018	298,568	$	39.61

As of March 31, 2018, there was $18.5 million of total unrecognized compensation cost related to restricted stock and restricted stock units expected to be recognized over a weighted average period of 1.2 years.

The following table summarizes the changes in the Company's outstanding stock options:

				Weighted Average
		Weighted		Remaining
	Options	Average		Contractual Term	Aggregate
	Outstanding	Exercise Price		(in Years)	Intrinsic Value
December 31, 2017	—	$	—	0.0	$	—
Granted	81,667	99.00
Exercised	—	—
Canceled	—	—
March 31, 2018	81,667	$	99.00	9.9	$	—

As of March 31, 2018, there was $2.0 million of unrecognized compensation cost related to stock options expected to be recognized over a weighted average period of 4.9 years. There were no options exercised during the three months ended March 31, 2018.

Acquisition-related Compensation Arrangements

The Company entered into acquisition-related compensation arrangements with certain employees for retention purposes. Additional cash compensation may be available to certain investment banking employees subject to exceeding an investment banking revenue threshold during the three year Simmons post-acquisition period to the extent they are employed by the Company at the time of payment. Amounts estimated to be payable related to this performance award plan will be recorded as compensation expense on the consolidated statements of operations over the requisite performance period of three years. As of March 31, 2018, the Company had accrued $35.1 million related to this performance award plan, of which $4.3 million and $1.3 million was recorded as compensation expense for the three months ended March 31, 2018 and 2017, respectively.

Deferred Compensation Plans

The Company maintains various deferred compensation arrangements for employees.

The nonqualified deferred compensation plan is an unfunded plan which allows certain highly compensated employees, at their election, to defer a percentage of their base salary, commissions and/or cash bonuses. The deferrals vest immediately and are non-forfeitable. The amounts deferred under this plan are held in a grantor trust. The Company invests, as a principal, in investments to economically hedge its obligation under the nonqualified deferred compensation plan. Investments in the grantor trust, consisting of mutual funds, totaled $32.1 million and $31.5 million as of March 31, 2018 and December 31, 2017, respectively, and are included in investments on the consolidated statements of financial condition. The compensation deferred by the employees is expensed in the period earned. The deferred compensation liability was $32.2 million and $31.6 million as of March 31, 2018 and December 31, 2017, respectively. Changes in the fair value of the investments made by the Company are reported in investment income and changes in the corresponding deferred compensation liability are reflected as compensation and benefits expense on the consolidated statements of operations. On August 9, 2017, the Company's board of directors approved the discontinuance of future deferral elections by participants for performance periods beginning after December 31, 2017.

The Piper Jaffray Companies Mutual Fund Restricted Share Investment Plan is a fully funded deferred compensation plan which allows eligible employees to elect to receive a portion of the incentive compensation they would otherwise receive in the form of restricted stock, instead in restricted mutual fund shares ("MFRS Awards") of investment funds. MFRS Awards are awarded to qualifying employees in February of each year, and represent a portion of their compensation for performance in the preceding year similar to the Company's Annual Grants. MFRS Awards vest ratably over three years in equal installments and provide for continued vesting after termination of employment so long as the employee does not violate certain post-termination restrictions set forth in the award agreement or any agreement entered into upon termination. Forfeitures are recorded as a reduction of compensation and benefits expense within the consolidated statements of operations. MFRS Awards are owned by employee recipients (subject to aforementioned vesting restrictions) and as such are not included on the consolidated statements of financial condition.

The Company has also granted MFRS Awards to new employees as a recruiting tool. Employees must fulfill service requirements in exchange for rights to the awards. Compensation expense from these awards are amortized on a straight-line basis over the requisite service period of two to five years.

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Earnings Per Share

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share ("EPS")

The Company calculates earnings per share using the two-class method. Basic earnings per common share is computed by dividing net income applicable to Piper Jaffray Companies' common shareholders by the weighted average number of common shares outstanding for the period. Net income applicable to Piper Jaffray Companies' common shareholders represents net income applicable to Piper Jaffray Companies reduced by the allocation of earnings to participating securities. No allocation of undistributed earnings is made for periods in which a loss is incurred, or for periods in which cash dividends exceed net income resulting in an undistributed loss. Distributed earnings (e.g., dividends) are allocated to participating securities. All of the Company's unvested restricted shares are deemed to be participating securities as they are eligible to share in the profits (e.g., receive dividends) of the Company. The Company's restricted stock units are not participating securities as they are not eligible to receive dividends, or the dividends are forfeitable until vested. Diluted earnings per common share is calculated by adjusting the weighted average outstanding shares to assume conversion of all potentially dilutive stock options and restricted stock units.

The computation of earnings per share is as follows:

	Three Months Ended
	March 31,
(Amounts in thousands, except per share data)	2018				2017
Net income applicable to Piper Jaffray Companies	$	10,603			$	20,275
Earnings allocated to participating securities (1)	(4,168		)		(3,447		)
Net income applicable to Piper Jaffray Companies' common shareholders (2)	$	6,435			$	16,828
Shares for basic and diluted calculations:
Average shares used in basic computation	13,096				12,594
Stock options	—				1
Restricted stock units	286				327
Average shares used in diluted computation	13,382			(3)	12,922
Earnings per common share:
Basic	$	0.47			$	1.33
Diluted	$	0.47		(3)	$	1.31

(1) Represents the allocation of distributed and undistributed earnings to participating securities. No allocation of undistributed earnings is made for periods in which a loss is incurred, or for periods in which cash dividends exceed net income resulting in an undistributed loss. Distributed earnings (e.g., dividends) are allocated to participating securities. Participating securities include all of the Company's unvested restricted shares. The weighted average participating shares outstanding were 2,089,155 and 2,630,742 for the three months ended March 31, 2018 and 2017, respectively.

(2) Net income applicable to Piper Jaffray Companies' common shareholders for diluted and basic EPS may differ under the two-class method as a result of adding the effect of the assumed exercise of stock options and restricted stock units to dilutive shares outstanding, which alters the ratio used to allocate earnings to Piper Jaffray Companies' common shareholders and participating securities for purposes of calculating diluted and basic EPS.

(3) Earnings per diluted common share is calculated using the basic weighted average number of common shares outstanding for periods in which a loss is incurred, or for periods in which cash dividends exceed net income resulting in an undistributed loss. Common shares of 1,926,530 were excluded from diluted EPS at March 31, 2018, as the Company had an undistributed loss for the period.

The anti-dilutive effects from stock options and restricted stock units were immaterial for the three months ended March 31, 2018 and 2017, respectively.

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Segment Reporting

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Segment Reporting

Segment Reporting

Basis for Presentation

The Company structures its segments primarily based upon the nature of the financial products and services provided to customers and the Company's management organization. The Company evaluates performance and allocates resources based on segment pre-tax operating income or loss and segment pre-tax operating margin. Revenues and expenses directly associated with each respective segment are included in determining their operating results. Other revenues and expenses that are not directly attributable to a particular segment are allocated based upon the Company's allocation methodologies, including each segment's respective net revenues, use of shared resources, headcount or other relevant measures. Segment assets are based on those directly associated with each segment, and include an allocation of certain assets based on the most relevant measures applicable, including headcount and other factors. The substantial majority of the Company's net revenues and long-lived assets are located in the U.S.

Reportable segment financial results are as follows:

	Three Months Ended
	March 31,
(Dollars in thousands)	2018			2017
Capital Markets
Investment banking
Advisory services	$	75,329		$	92,882
Financing
Equities	37,642			23,382
Debt	7,686			16,408
Total investment banking	120,657			132,672
Institutional sales and trading
Equities	18,006			20,106
Fixed income	16,334			23,240
Total institutional sales and trading	34,340			43,346
Management and performance fees	1,388			1,997
Investment income	3,298			10,508
Long-term financing expenses	(1,787		)	(2,238		)
Net revenues	157,896			186,285
Operating expenses (1)	148,860			164,060
Segment pre-tax operating income	$	9,036		$	22,225
Segment pre-tax operating margin	5.7		%	11.9		%
Continued on next page

	Three Months Ended
	March 31,
(Dollars in thousands)	2018			2017
Asset Management
Management and performance fees
Management fees	$	11,193		$	14,010
Performance fees	8			—
Total management and performance fees	11,201			14,010
Investment income/(loss)	(35		)	234
Net revenues	11,166			14,244
Operating expenses (1)	12,164			13,660
Segment pre-tax operating income/(loss)	$	(998	)	$	584
Segment pre-tax operating margin	(8.9		)%	4.1		%
Total
Net revenues	$	169,062		$	200,529
Operating expenses	161,024			177,720
Pre-tax operating income	$	8,038		$	22,809
Pre-tax operating margin	4.8		%	11.4		%

(1)Operating expenses include intangible asset amortization as set forth in the table below:

	Three Months Ended
	March 31,
(Dollars in thousands)	2018		2017
Capital Markets	$	1,214	$	2,544
Asset Management	1,401		1,278
Total intangible asset amortization	$	2,615	$	3,822

Reportable segment assets are as follows:

	March 31,		December 31,
(Dollars in thousands)	2018		2017
Capital Markets	$	1,495,768	$	1,933,050
Asset Management	81,598		91,633
Total assets	$	1,577,366	$	2,024,683

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Net Capital Requirements and Other Regulatory Matters

3 Months Ended

Mar. 31, 2018

Regulatory Capital Requirements [Abstract]

Net Capital Requirements and Other Regulatory Matters

Net Capital Requirements and Other Regulatory Matters

Piper Jaffray is registered as a securities broker dealer with the SEC and is a member of various SROs and securities exchanges. The Financial Industry Regulatory Authority, Inc. ("FINRA") serves as Piper Jaffray's primary SRO. Piper Jaffray is subject to the uniform net capital rule of the SEC and the net capital rule of FINRA. Piper Jaffray has elected to use the alternative method permitted by the SEC rule which requires that it maintain minimum net capital of $1.0 million. Advances to affiliates, repayment of subordinated debt, dividend payments and other equity withdrawals by Piper Jaffray are subject to certain approvals, notifications and other provisions of SEC and FINRA rules.

At March 31, 2018, net capital calculated under the SEC rule was $185.8 million, and exceeded the minimum net capital required under the SEC rule by $184.8 million.

The Company's committed short-term credit facility and its senior notes include covenants requiring Piper Jaffray to maintain minimum net capital of $120 million. CP Notes issued under CP Series II A include a covenant that requires Piper Jaffray to maintain excess net capital of $100 million. The Company's fully disclosed clearing agreement with Pershing also includes a covenant requiring Piper Jaffray to maintain excess net capital of $120 million.

Piper Jaffray Ltd., a broker dealer subsidiary registered in the United Kingdom, is subject to the capital requirements of the Prudential Regulation Authority and the Financial Conduct Authority. As of March 31, 2018, Piper Jaffray Ltd. was in compliance with the capital requirements of the Prudential Regulation Authority and the Financial Conduct Authority.

Piper Jaffray Hong Kong Limited is licensed by the Hong Kong Securities and Futures Commission, which is subject to the liquid capital requirements of the Securities and Futures (Financial Resources) Rule promulgated under the Securities and Futures Ordinance. At March 31, 2018, Piper Jaffray Hong Kong Limited was in compliance with the liquid capital requirements of the Hong Kong Securities and Futures Commission.

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Income Taxes

3 Months Ended

Mar. 31, 2018

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The Company recorded an income tax benefit of $2.6 million and $0.4 million for the three months ended March 31, 2018 and 2017, respectively. Income tax expense was reduced by a tax benefit of $5.0 million and $7.0 million for the three months ended March 31, 2018 and 2017, respectively, related to stock-based compensation awards vesting at values greater than the grant price.

SEC Staff Accounting Bulletin No. 118, "Income Tax Accounting Implications of the Tax Cuts and Jobs Act" ("SAB 118") permitted companies to report a provisional amount in the financial statements if the accounting for income tax effects of the Tax Cuts and Jobs Act was incomplete as of December 31, 2017. This provisional amount would be subject to adjustment during a defined measurement period.  Pursuant to SAB 118, the Company recorded an additional $1.0 million of income tax expense for the three months ended March 31, 2018.

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Accounting Policies and Pronouncements (Policies)

3 Months Ended

Mar. 31, 2018

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Revenue Recognition

Revenue Recognition

Investment Banking– Investment banking revenues, which include advisory and underwriting fees, are recorded when the performance obligation for the transaction is satisfied under the terms of each engagement. Expenses associated with such transactions are deferred until the related revenue is recognized or the engagement is otherwise concluded. Investment banking revenues are presented gross of related client reimbursed deal expenses. Expenses for completed deals are reported separately in deal-related expenses on the consolidated statements of operations. Expenses related to investment banking deals not completed are recognized as non-interest expenses on the consolidated statements of operations.

The Company's advisory fees generally consist of a nonrefundable up-front fee and a success fee. The nonrefundable fee is recorded as deferred revenue upon receipt and recognized at a point in time when the performance obligation is satisfied, or when the transaction is deemed by management to be terminated. Management's judgment is required in determining when a transaction is considered to be terminated.

The substantial majority of the Company's advisory and underwriting fees (i.e., the success related advisory fee) are considered variable consideration and recognized when it is probable that the variable consideration will not be reversed in a future period. The variable consideration is considered to be constrained until satisfaction of the performance obligation. The Company's performance obligation is generally satisfied at a point in time upon the closing of a strategic transaction, completion of a financing or underwriting arrangement, or some other defined outcome. At this time, the Company has transferred control of the promised service and the customer obtains control. As these arrangements represent a single performance obligation, allocation of the transaction price is not necessary. The Company has elected to apply the following optional exemptions regarding disclosure of its remaining performance obligations: (i) the Company's performance obligation is part of a contract that has an original expected duration of one year or less and/or (ii) the variable consideration is allocated entirely to a wholly unsatisfied promise to transfer a distinct service that forms part of a single performance obligation.

Institutional Brokerage– Institutional brokerage revenues include (i) commissions received from customers for the execution of brokerage transactions in listed and over-the-counter (OTC) equity, fixed income and convertible debt securities, which are recognized at a point in time on the trade date because the customer has obtained the rights to the underlying security provided by the trade execution service, (ii) trading gains and losses, recorded on changes in the fair value of long and short security positions in the reporting period and (iii) fees received by the Company for equity research, which are generally recognized in the period received. The Company permits institutional customers to allocate a portion of their gross commissions to pay for research products and other services provided by third parties. The amounts allocated for those purposes are commonly referred to as soft dollar arrangements. As the Company is not acting as a principal in satisfying the performance obligation for these arrangements, expenses relating to soft dollars are netted against commission revenues and included in other liabilities and accrued expenses on the consolidated statements of financial condition.

Asset Management– Asset management fees include revenues the Company receives in connection with management and investment advisory services performed for separately managed accounts and various funds and partnerships. The performance obligation related to the transfer of these services is satisfied over time and the related fees are recognized under the output method, which reflects the fees that the Company has a right to invoice based on the services provided during the period. Fees are defined in client contracts as a percentage of portfolio assets under management. Amounts related to remaining performance obligations are not disclosed as the Company applies the output method.

Asset management revenues may also include performance fees. Performance fees, if earned, are recognized when it is probable that such revenue will not be reversed in a future period. For the Company's alternative asset management funds, management will consider such factors as the remaining assets and residual life of the fund to conclude whether it is probable that a significant reversal of revenue will not occur in the future. For the Company's traditional asset management funds, performance fees are earned when the investment return on assets under management exceeds certain benchmark targets or other performance targets over a specified measurement period (monthly, quarterly or annually). These performance fees are typically annual performance hurdles and recognized in the fourth quarter of the applicable year, or upon client liquidation.

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Accounting Policies and Pronouncements (Tables)

3 Months Ended

Mar. 31, 2018

New Accounting Pronouncements and Changes in Accounting Principles [Abstract]

Reconciliation of Cash, Cash Equivalents and Restricted Cash

The following table provides a reconciliation of cash, cash equivalents and restricted cash for all periods presented on the consolidated statements of cash flows:

	December 31,		March 31,		December 31,
(Dollars in thousands)	2017		2017		2016
Cash and cash equivalents	$	33,793	$	18,879	$	41,359
Cash and cash equivalents segregated for regulatory purposes	—		53,022		29,015
Cash, cash equivalents and restricted cash	$	33,793	$	71,901	$	70,374

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Financial Instruments and Other Inventory Positions Owned and Financial Instruments and Other Inventory Positions Sold, but Not Yet Purchased (Tables)

3 Months Ended

Mar. 31, 2018

Financial Instruments Owned and Sold, Not yet Purchased [Abstract]

Financial Instruments and Other Inventory Positions Owned and Financial Instruments and Other Inventory Positions Sold, but Not Yet Purchased by Type

	March 31,		December 31,
(Dollars in thousands)	2018		2017
Financial instruments and other inventory positions owned:
Corporate securities:
Equity securities	$	16,009	$	51,896
Convertible securities	90,841		74,456
Fixed income securities	35,582		30,145
Municipal securities:
Taxable securities	50,346		67,699
Tax-exempt securities	449,016		744,241
Short-term securities	113,775		62,251
Mortgage-backed securities	284		481
U.S. government agency securities	258,684		317,318
U.S. government securities	299		9,317
Derivative contracts	18,967		25,573
Total financial instruments and other inventory positions owned	$	1,033,803	$	1,383,377
Financial instruments and other inventory positions sold, but not yet purchased:
Corporate securities:
Equity securities	$	77,542	$	101,517
Fixed income securities	29,998		30,292
U.S. government agency securities	23,674		49,077
U.S. government securities	185,010		213,312
Derivative contracts	4,245		5,029
Total financial instruments and other inventory positions sold, but not yet purchased	$	320,469	$	399,227

Schedule of Gross Fair Market Value Total Absolute Notional Contract Amount

The following table presents the gross fair market value and the total absolute notional contract amount of the Company's outstanding derivative instruments, prior to counterparty netting, by asset or liability position:

	March 31, 2018						December 31, 2017
(Dollars in thousands)	Derivative		Derivative		Notional		Derivative		Derivative		Notional
Derivative Category	Assets (1)		Liabilities (2)		Amount		Assets (1)		Liabilities (2)		Amount
Interest rate
Customer matched-book	$	194,735	$	182,472	$	2,682,335	$	239,224	$	225,890	$	2,819,006
Trading securities	2,393		1,389		455,775		126		4,459		399,450
Equity options
Trading securities	—		—		—		6		—		9,635
	$	197,128	$	183,861	$	3,138,110	$	239,356	$	230,349	$	3,228,091

(1) Derivative assets are included within financial instruments and other inventory positions owned on the consolidated statements of financial condition.

(2) Derivative liabilities are included within financial instruments and other inventory positions sold, but not yet purchased on the consolidated statements of financial condition.

Unrealized Gains/(Losses) on Derivative Instruments

The following table presents the Company's unrealized gains/(losses) on derivative instruments:

		Three Months Ended
(Dollars in thousands)		March 31,
Derivative Category	Operations Category	2018			2017
Interest rate derivative contract	Investment banking	$	(795	)	$	(292	)
Interest rate derivative contract	Institutional brokerage	5,062			(14,738		)
Credit default swap index contract	Institutional brokerage	—			255
		$	4,267		$	(14,775	)

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Fair Value of Financial Instruments (Tables)

3 Months Ended

Mar. 31, 2018

Fair Value Disclosures [Abstract]

Information about Significant Unobservable Inputs used in Fair Value Measurement

The following table summarizes quantitative information about the significant unobservable inputs used in the fair value measurement of the Company's Level III financial instruments as of March 31, 2018:

	Valuation			Weighted
	Technique	Unobservable Input	Range	Average
Assets:
Financial instruments and other inventory positions owned:
Derivative contracts:
Interest rate locks	Discounted cash flow	Premium over the MMD curve (1)	2 - 38 bps	23.8 bps
Investments at fair value:
Equity securities in private companies	Market approach	Revenue multiple (2)	2 - 5 times	4.2 times
		EBITDA multiple (2)	11 - 15 times	12.4 times
Liabilities:
Financial instruments and other inventory positions sold, but not yet purchased:
Derivative contracts:
Interest rate locks	Discounted cash flow	Premium over the MMD curve (1)	2 - 36 bps	13.6 bps

Sensitivity of the fair value to changes in unobservable inputs:

(1) Significant increase/(decrease) in the unobservable input in isolation would result in a significantly lower/(higher) fair value measurement.

(2) Significant increase/(decrease) in the unobservable input in isolation would result in a significantly higher/(lower) fair value measurement.

Valuation of Financial Instruments by Pricing Observability Levels

The following table summarizes the valuation of the Company's financial instruments by pricing observability levels defined in FASB Accounting Standards Codification Topic 820, "Fair Value Measurement" ("ASC 820") as of March 31, 2018:

								Counterparty
								and Cash
								Collateral
(Dollars in thousands)	Level I		Level II		Level III			Netting (1)			Total
Assets:
Financial instruments and other inventory positions owned:
Corporate securities:
Equity securities	$	1,360	$	14,649	$	—		$	—		$	16,009
Convertible securities	—		90,841		—			—			90,841
Fixed income securities	—		35,582		—			—			35,582
Municipal securities:
Taxable securities	—		50,346		—			—			50,346
Tax-exempt securities	—		449,016		—			—			449,016
Short-term securities	—		113,056		719			—			113,775
Mortgage-backed securities	—		—		284			—			284
U.S. government agency securities	—		258,684		—			—			258,684
U.S. government securities	299		—		—			—			299
Derivative contracts	—		194,984		2,144			(178,161		)	18,967
Total financial instruments and other inventory positions owned	1,659		1,207,158		3,147			(178,161		)	1,033,803
Cash equivalents	1,896		—		—			—			1,896
Investments at fair value	39,953		—		121,637		(2)	—			161,590
Total assets	$	43,508	$	1,207,158	$	124,784		$	(178,161	)	$	1,197,289
Liabilities:
Financial instruments and other inventory positions sold, but not yet purchased:
Corporate securities:
Equity securities	$	74,239	$	3,303	$	—		$	—		$	77,542
Fixed income securities	—		29,998		—			—			29,998
U.S. government agency securities	—		23,674		—			—			23,674
U.S. government securities	185,010		—		—			—			185,010
Derivative contracts	—		182,472		1,389			(179,616		)	4,245
Total financial instruments and other inventory positions sold, but not yet purchased	$	259,249	$	239,447	$	1,389		$	(179,616	)	$	320,469

(1) Represents cash collateral and the impact of netting on a counterparty basis. The Company had no securities posted as collateral to its counterparties.

(2) Noncontrolling interests of $47.0 million are attributable to third party ownership in consolidated merchant banking and senior living funds.

The following table summarizes the valuation of the Company's financial instruments by pricing observability levels defined in ASC 820 as of December 31, 2017:

								Counterparty
								and Cash
								Collateral
(Dollars in thousands)	Level I		Level II		Level III			Netting (1)			Total
Assets:
Financial instruments and other inventory positions owned:
Corporate securities:
Equity securities	$	1,863	$	50,033	$	—		$	—		$	51,896
Convertible securities	—		74,456		—			—			74,456
Fixed income securities	—		30,145		—			—			30,145
Municipal securities:
Taxable securities	—		67,699		—			—			67,699
Tax-exempt securities	—		743,541		700			—			744,241
Short-term securities	—		61,537		714			—			62,251
Mortgage-backed securities	—		—		481			—			481
U.S. government agency securities	—		317,318		—			—			317,318
U.S. government securities	9,317		—		—			—			9,317
Derivative contracts	6		239,224		126			(213,783		)	25,573
Total financial instruments and other inventory positions owned	11,186		1,583,953		2,021			(213,783		)	1,383,377
Cash equivalents	3,782		—		—			—			3,782
Investments at fair value	39,504		—		126,060		(2)	—			165,564
Total assets	$	54,472	$	1,583,953	$	128,081		$	(213,783	)	$	1,552,723
Liabilities:
Financial instruments and other inventory positions sold, but not yet purchased:
Corporate securities:
Equity securities	$	91,934	$	9,583	$	—		$	—		$	101,517
Fixed income securities	—		30,292		—			—			30,292
U.S. government agency securities	—		49,077		—			—			49,077
U.S. government securities	213,312		—		—			—			213,312
Derivative contracts	—		225,916		4,433			(225,320		)	5,029
Total financial instruments and other inventory positions sold, but not yet purchased	$	305,246	$	314,868	$	4,433		$	(225,320	)	$	399,227

(1) Represents cash collateral and the impact of netting on a counterparty basis. The Company had no securities posted as collateral to its counterparties.

(2) Noncontrolling interests of $44.4 million are attributable to third party ownership in consolidated merchant banking and senior living funds.

Changes in Fair Value Associated with Level III Financial Instruments

The following tables summarize the changes in fair value associated with Level III financial instruments held at the beginning or end of the periods presented:

																						Unrealized gains/
																						(losses) for assets/
	Balance at													Realized			Unrealized			Balance at		liabilities held at
	December 31,								Transfers		Transfers			gains/			gains/			March 31,		March 31,
(Dollars in thousands)	2017		Purchases			Sales			in		out			(losses) (1)			(losses) (1)			2018		2018 (1)
Assets:
Financial instruments and other inventory positions owned:
Municipal securities:
Tax-exempt securities	$	700	$	—		$	—		$	—	$	(700	)	$	—		$	—		$	—	$	—
Short-term securities	714		—			—			—		—			—			5			719		5
Mortgage-backed securities	481		—			(5		)	—		—			—			(192		)	284		3
Derivative contracts	126		—			(1,760		)	—		—			1,760			2,018			2,144		2,144
Total financial instruments and other inventory positions owned	2,021		—			(1,765		)	—		(700		)	1,760			1,831			3,147		2,152
Investments at fair value	126,060		601			(4,154		)	—		—			3,402			(4,272		)	121,637		(869		)
Total assets	$	128,081	$	601		$	(5,919	)	$	—	$	(700	)	$	5,162		$	(2,441	)	$	124,784	$	1,283
Liabilities:
Financial instruments and other inventory positions sold, but not yet purchased:
Derivative contracts	$	4,433	$	(1,305	)	$	3,226		$	—	$	—		$	(1,921	)	$	(3,044	)	$	1,389	$	1,389
Total financial instruments and other inventory positions sold, but not yet purchased	$	4,433	$	(1,305	)	$	3,226		$	—	$	—		$	(1,921	)	$	(3,044	)	$	1,389	$	1,389

(1) Realized and unrealized gains/(losses) related to financial instruments, with the exception of customer matched-book derivatives, are reported in institutional brokerage on the consolidated statements of operations. Realized and unrealized gains/(losses) related to customer matched-book derivatives are reported in investment banking. Realized and unrealized gains/(losses) related to investments are reported in investment banking revenues or investment income on the consolidated statements of operations.

																				Unrealized gains/
																				(losses) for assets/
	Balance at												Realized		Unrealized			Balance at		liabilities held at
	December 31,								Transfers		Transfers		gains/		gains/			March 31,		March 31,
(Dollars in thousands)	2016		Purchases			Sales			in		out		(losses) (1)		(losses) (1)			2017		2017 (1)
Assets:
Financial instruments and other inventory positions owned:
Municipal securities:
Taxable securities	$	2,686	$	—		$	(2,703	)	$	—	$	—	$	716	$	(699	)	$	—	$	—
Tax-exempt securities	1,077		—			—			—		—		—		40			1,117		40
Short-term securities	744		—			—			—		—		—		—			744		—
Mortgage-backed securities	5,364		996			(790		)	—		—		314		(393		)	5,491		(71		)
Derivative contracts	13,952		240			(10,885		)	—		—		10,645		(12,319		)	1,633		(347		)
Total financial instruments and other inventory positions owned	23,823		1,236			(14,378		)	—		—		11,675		(13,371		)	8,985		(378		)
Investments at fair value	123,319		6,587			(24,469		)	—		—		8,656		(3,400		)	110,693		6,493
Total assets	$	147,142	$	7,823		$	(38,847	)	$	—	$	—	$	20,331	$	(16,771	)	$	119,678	$	6,115
Liabilities:
Financial instruments and other inventory positions sold, but not yet purchased:
Derivative contracts	$	1,487	$	(719	)	$	—		$	—	$	—	$	719	$	2,419		$	3,906	$	3,061
Total financial instruments and other inventory positions sold, but not yet purchased	$	1,487	$	(719	)	$	—		$	—	$	—	$	719	$	2,419		$	3,906	$	3,061

(1) Realized and unrealized gains/(losses) related to financial instruments, with the exception of customer matched-book derivatives, are reported in institutional brokerage on the consolidated statements of operations. Realized and unrealized gains/(losses) related to customer matched-book derivatives are reported in investment banking. Realized and unrealized gains/(losses) related to investments are reported in investment banking revenues or investment income on the consolidated statements of operations.

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Variable Interest Entities (Tables)

3 Months Ended

Mar. 31, 2018

Variable Interest Entity, Consolidated, Carrying Amount, Assets and Liabilities, Net [Abstract]

Schedule of Consolidated Variable Interest Entities

The following table presents information about the carrying value of the assets and liabilities of the VIEs which are consolidated by the Company and included on the consolidated statements of financial condition at March 31, 2018. The assets can only be used to settle the liabilities of the respective VIE, and the creditors of the VIEs do not have recourse to the general credit of the Company. One of these VIEs has $25.0 million of bank line financing available with an interest rate based on prime plus an applicable margin. The assets and liabilities are presented prior to consolidation, and thus a portion of these assets and liabilities are eliminated in consolidation.

	Alternative Asset
(Dollars in thousands)	Management Funds
Assets:
Receivables from brokers, dealers and clearing organizations	$	3,223
Financial instruments and other inventory positions owned and pledged as collateral	216,884
Investments	106,515
Other assets	6,780
Total assets	$	333,402
Liabilities:
Short-term financing	$	136,284
Payables to brokers, dealers and clearing organizations	6,169
Financial instruments and other inventory positions sold, but not yet purchased	51,531
Other liabilities and accrued expenses	8,846
Total liabilities	$	202,830

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Receivables from and Payables to Brokers, Dealers and Clearing Organizations (Tables)

3 Months Ended

Mar. 31, 2018

Brokers and Dealers [Abstract]

Schedule of receivables from and payables to brokers, dealers and clearing organizations

	March 31,		December 31,
(Dollars in thousands)	2018		2017
Receivable arising from unsettled securities transactions	$	3,223	$	9,218
Receivable from clearing organizations	7,991		109,270
Deposits with clearing organizations	14,745		11,019
Receivable from brokers and dealers	16,011		12,041
Other	4,332		3,846
Total receivables from brokers, dealers and clearing organizations	$	46,302	$	145,394

	March 31,		December 31,
(Dollars in thousands)	2018		2017
Payable arising from unsettled securities transactions	$	6,169	$	808
Payable to clearing organizations	25,655		—
Payable to brokers and dealers	1,758		18,584
Total payables to brokers, dealers and clearing organizations	$	33,582	$	19,392

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Investments (Tables)

3 Months Ended

Mar. 31, 2018

Investments, All Other Investments [Abstract]

Schedule of Investments

The Company's investments include investments in private companies and partnerships, registered mutual funds, warrants of public and private companies and private company debt.

	March 31,			December 31,
(Dollars in thousands)	2018			2017
Investments at fair value	$	161,590		$	165,564
Investments at cost	1,661			2,416
Investments accounted for under the equity method	6,488			8,232
Total investments	169,739			176,212
Less investments attributable to noncontrolling interests (1)	(47,015		)	(44,397		)
	$	122,724		$	131,815

(1) Noncontrolling interests are attributable to third party ownership in consolidated merchant banking and senior living funds.

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Other Assets (Tables)

3 Months Ended

Mar. 31, 2018

Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]

Schedule of Other Assets

	March 31,		December 31,
(Dollars in thousands)	2018		2017
Fee receivables	$	23,602	$	20,884
Income tax receivables	19,193		—
Accrued interest receivables	9,838		6,981
Forgivable loans, net	7,756		7,452
Prepaid expenses	6,439		6,769
Secured loan receivables	2,975		2,975
Other	7,621		9,773
Total other assets	$	77,424	$	54,834

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Short-Term Financing (Tables)

3 Months Ended

Mar. 31, 2018

Debt Disclosure [Abstract]

Summary of Short-Term Financing and Weighted Average Interest Rate on Borrowings

	Outstanding Balance				Weighted Average Interest Rate
	March 31,		December 31,		March 31,		December 31,
(Dollars in thousands)	2018		2017		2018		2017
Commercial paper (secured)	$	49,970	$	49,974	2.70	%	2.32	%
Prime broker arrangements	136,284		239,963		2.50	%	2.23	%
Total short-term financing	$	186,254	$	289,937

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Contingencies, Commitments and Guarantees (Tables)

3 Months Ended

Mar. 31, 2018

Commitments and Contingencies Disclosure [Abstract]

Schedule of Aggregate Minimum Lease Commitments Under Operating Leases

The Company leases office space throughout the United States and in a limited number of foreign countries where the Company's international operations reside. Aggregate minimum lease commitments under operating leases as of March 31, 2018 are as follows:

(Dollars in thousands)
Remainder of 2018	$	11,352
2019	13,748
2020	13,569
2021	9,245
2022	7,902
Thereafter	22,859
Total	$	78,675

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Shareholders' Equity (Tables)

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Changes in shareholders' equity

Ownership interests in entities held by parties other than the Company's common shareholders are presented as noncontrolling interests within shareholders' equity, separate from the Company's own equity. Revenues, expenses and net income or loss are reported on the consolidated statements of operations on a consolidated basis, which includes amounts attributable to both the Company's common shareholders and noncontrolling interests. Net income or loss is then allocated between the Company and noncontrolling interests based upon their relative ownership interests. Net income applicable to noncontrolling interests is deducted from consolidated net income to determine net income applicable to the Company. There was no other comprehensive income or loss attributed to noncontrolling interests for the three months ended March 31, 2018 and 2017, respectively.

The following table presents the changes in shareholders' equity for the three months ended March 31, 2018:

	Common		Common						Total
	Shares		Shareholders'			Noncontrolling			Shareholders'
(Amounts in thousands, except share amounts)	Outstanding		Equity			Interests			Equity
Balance at December 31, 2017	12,911,149		$	693,332		$	47,903		$	741,235
Net income	—		10,603			16			10,619
Dividends	—		(30,575		)	—			(30,575		)
Amortization/issuance of restricted stock	—		34,416			—			34,416
Issuance of treasury shares for restricted stock vestings	574,594		—			—			—
Repurchase of common stock for employee tax withholding	(187,860	)	(16,797		)	—			(16,797		)
Shares reserved/issued for director compensation	942		81			—			81
Other comprehensive income	—		529			—			529
Cumulative effect upon adoption of new accounting standard, net of tax (1)	—		(3,597		)	—			(3,597		)
Fund capital distributions, net	—		—			(904		)	(904		)
Balance at March 31, 2018	13,298,825		$	687,992		$	47,015		$	735,007

(1) Cumulative effect adjustment upon adoption of ASU 2014-09, as amended. See Note 2 for further discussion.

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Compensation Plans (Tables)

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Outstanding Equity Awards

The following table provides a summary of the Company's outstanding equity awards (in shares or units) as of March 31, 2018:

Incentive Plan
Restricted Stock
Annual grants	666,665
Sign-on grants	216,105
	882,770
Inducement Plan
Restricted Stock	260,231
Total restricted stock related to compensation	1,143,001
Simmons Deal Consideration (1)	783,529
Total restricted stock outstanding	1,926,530
Incentive Plan
Restricted Stock Units
Leadership grants	298,568
Incentive Plan
Stock Options	81,667

(1) The Company issued restricted stock with service conditions as part of deal consideration for the acquisition of Simmons & Company International ("Simmons") on February 26, 2016.

Schedule of RSU Valuation Assumptions

The fair value of the awards on the grant date was determined using a Monte Carlo simulation with the following assumptions pursuant to the methodology above:

	Risk-free	Expected Stock
Grant Year	Interest Rate	Price Volatility
2016	0.98%	34.9%
2015	0.90%	29.8%

For this portion of the awards, the fair value on the grant date was determined using a Monte Carlo simulation with the following assumptions:

	Risk-free	Expected Stock
Grant Year	Interest Rate	Price Volatility
2018	2.40%	34.8%
2017	1.62%	35.9%

Schedule of Stock Options Valuation Assumptions

The fair value of this stock option award was estimated on the date of grant using the Black-Scholes option-pricing model with the following assumptions:

Risk-free interest rate	2.82%
Dividend yield	3.22%
Expected stock price volatility	37.20%
Expected life of options (in years)	7.0
Fair value of options granted	$24.49

Changes in Unvested Restricted Stock

The following table summarizes the changes in the Company's unvested restricted stock:

	Unvested		Weighted Average
	Restricted Stock		Grant Date
	(in Shares)		Fair Value
December 31, 2017	2,225,617		$	46.40
Granted	276,437		90.00
Vested	(574,594	)	50.58
Canceled	(930	)	35.86
March 31, 2018	1,926,530		$	51.41

Changes in Unvested Restricted Stock Units

The following table summarizes the changes in the Company's unvested restricted stock units:

	Unvested	Weighted Average
	Restricted	Grant Date
	Stock Units	Fair Value
December 31, 2017	244,772	$	27.89
Granted	53,796	92.93
Vested	—	—
Canceled	—	—
March 31, 2018	298,568	$	39.61

Changes in Outstanding Stock Options

The following table summarizes the changes in the Company's outstanding stock options:

				Weighted Average
		Weighted		Remaining
	Options	Average		Contractual Term	Aggregate
	Outstanding	Exercise Price		(in Years)	Intrinsic Value
December 31, 2017	—	$	—	0.0	$	—
Granted	81,667	99.00
Exercised	—	—
Canceled	—	—
March 31, 2018	81,667	$	99.00	9.9	$	—

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Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Computation of Earnings per Share

The computation of earnings per share is as follows:

	Three Months Ended
	March 31,
(Amounts in thousands, except per share data)	2018				2017
Net income applicable to Piper Jaffray Companies	$	10,603			$	20,275
Earnings allocated to participating securities (1)	(4,168		)		(3,447		)
Net income applicable to Piper Jaffray Companies' common shareholders (2)	$	6,435			$	16,828
Shares for basic and diluted calculations:
Average shares used in basic computation	13,096				12,594
Stock options	—				1
Restricted stock units	286				327
Average shares used in diluted computation	13,382			(3)	12,922
Earnings per common share:
Basic	$	0.47			$	1.33
Diluted	$	0.47		(3)	$	1.31

(1) Represents the allocation of distributed and undistributed earnings to participating securities. No allocation of undistributed earnings is made for periods in which a loss is incurred, or for periods in which cash dividends exceed net income resulting in an undistributed loss. Distributed earnings (e.g., dividends) are allocated to participating securities. Participating securities include all of the Company's unvested restricted shares. The weighted average participating shares outstanding were 2,089,155 and 2,630,742 for the three months ended March 31, 2018 and 2017, respectively.

(2) Net income applicable to Piper Jaffray Companies' common shareholders for diluted and basic EPS may differ under the two-class method as a result of adding the effect of the assumed exercise of stock options and restricted stock units to dilutive shares outstanding, which alters the ratio used to allocate earnings to Piper Jaffray Companies' common shareholders and participating securities for purposes of calculating diluted and basic EPS.

(3) Earnings per diluted common share is calculated using the basic weighted average number of common shares outstanding for periods in which a loss is incurred, or for periods in which cash dividends exceed net income resulting in an undistributed loss. Common shares of 1,926,530 were excluded from diluted EPS at March 31, 2018, as the Company had an undistributed loss for the period.

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Segment Reporting (Tables)

3 Months Ended

Mar. 31, 2018

Segment Reporting [Abstract]

Reportable Segment Financial Results

Reportable segment financial results are as follows:

	Three Months Ended
	March 31,
(Dollars in thousands)	2018			2017
Capital Markets
Investment banking
Advisory services	$	75,329		$	92,882
Financing
Equities	37,642			23,382
Debt	7,686			16,408
Total investment banking	120,657			132,672
Institutional sales and trading
Equities	18,006			20,106
Fixed income	16,334			23,240
Total institutional sales and trading	34,340			43,346
Management and performance fees	1,388			1,997
Investment income	3,298			10,508
Long-term financing expenses	(1,787		)	(2,238		)
Net revenues	157,896			186,285
Operating expenses (1)	148,860			164,060
Segment pre-tax operating income	$	9,036		$	22,225
Segment pre-tax operating margin	5.7		%	11.9		%
Continued on next page

	Three Months Ended
	March 31,
(Dollars in thousands)	2018			2017
Asset Management
Management and performance fees
Management fees	$	11,193		$	14,010
Performance fees	8			—
Total management and performance fees	11,201			14,010
Investment income/(loss)	(35		)	234
Net revenues	11,166			14,244
Operating expenses (1)	12,164			13,660
Segment pre-tax operating income/(loss)	$	(998	)	$	584
Segment pre-tax operating margin	(8.9		)%	4.1		%
Total
Net revenues	$	169,062		$	200,529
Operating expenses	161,024			177,720
Pre-tax operating income	$	8,038		$	22,809
Pre-tax operating margin	4.8		%	11.4		%

(1)Operating expenses include intangible asset amortization as set forth in the table below:

	Three Months Ended
	March 31,
(Dollars in thousands)	2018		2017
Capital Markets	$	1,214	$	2,544
Asset Management	1,401		1,278
Total intangible asset amortization	$	2,615	$	3,822

Reportable Segment Assets

Reportable segment assets are as follows:

	March 31,		December 31,
(Dollars in thousands)	2018		2017
Capital Markets	$	1,495,768	$	1,933,050
Asset Management	81,598		91,633
Total assets	$	1,577,366	$	2,024,683

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Organization and Basis of Presentation - Additional Information (Details)	3 Months Ended
	Mar. 31, 2018 segment
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Number of reportable segments	2

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Accounting Policies and Pronouncements - Additional Information (Details) $ in Thousands		3 Months Ended
		Mar. 31, 2018 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Deal-related expenses		$ 5,051	$ 0
Cash, cash equivalents and restricted cash	[1]	27,642	71,901	$ 33,793	$ 70,374
Aggregate minimum lease commitments		$ 78,675
ASU 2016-18
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Cash and cash equivalents			18,879	33,793	41,359
Cash and cash equivalents segregated for regulatory purposes			53,022	0	29,015
Cash, cash equivalents and restricted cash			$ 71,901	$ 33,793	$ 70,374
ASU 2016-02
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of operating leases		65
Aggregate minimum lease commitments		$ 78,675
Retained earnings | ASU 2014-09
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Decrease to retained earnings		$ (3,597)

[1] Upon adoption of ASU 2016-18, restricted cash includes cash and cash equivalents previously segregated for regulatory purposes. See Note 2 for further discussion.

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Financial Instruments and Other Inventory Positions Owned and Financial Instruments and Other Inventory Positions Sold, but Not Yet Purchased - Schedule of Financial Instruments Owned and Financial Instruments Sold, but Not Yet Purchased by Type (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Financial Instruments Owned and Sold, Not yet Purchased [Abstract]
Equity securities	$ 16,009	$ 51,896
Convertible securities	90,841	74,456
Fixed income securities	35,582	30,145
Taxable securities	50,346	67,699
Tax-exempt securities	449,016	744,241
Short-term securities	113,775	62,251
Mortgage-backed securities	284	481
U.S. government agency securities	258,684	317,318
U.S. government securities	299	9,317
Derivative contracts	18,967	25,573
Total financial instruments and other inventory positions owned	1,033,803	1,383,377
Equity securities	77,542	101,517
Fixed income securities	29,998	30,292
U.S. government agency securities	23,674	49,077
U.S. government securities	185,010	213,312
Derivative contracts	4,245	5,029
Total financial instruments and other inventory positions sold, but not yet purchased	320,469	399,227
Financial instruments and other inventory positions owned and pledged as collateral	$ 503,860	$ 720,047

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Financial Instruments and Other Inventory Positions Owned and Financial Instruments and Other Inventory Positions Sold, but Not Yet Purchased - Schedule of Gross Fair Market Value and Total Absolute Notional Contract Amount (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Derivative [Line Items]
Derivative Assets (1)	$ 197,128	$ 239,356
Derivative Liabilities (2)	183,861	230,349
Notional Amount	3,138,110	3,228,091
Customer matched-book | Interest rate
Derivative [Line Items]
Notional Amount	2,682,335	2,819,006
Customer matched-book | Interest rate | Financial instruments and other inventory positions owned
Derivative [Line Items]
Derivative Assets (1)	194,735	239,224
Customer matched-book | Interest rate | Financial instruments and other inventory positions sold, but not yet purchased
Derivative [Line Items]
Derivative Liabilities (2)	182,472	225,890
Trading securities | Interest rate
Derivative [Line Items]
Notional Amount	455,775	399,450
Trading securities | Interest rate | Financial instruments and other inventory positions owned
Derivative [Line Items]
Derivative Assets (1)	2,393	126
Trading securities | Interest rate | Financial instruments and other inventory positions sold, but not yet purchased
Derivative [Line Items]
Derivative Liabilities (2)	1,389	4,459
Trading securities | Equity options
Derivative [Line Items]
Notional Amount	0	9,635
Trading securities | Equity options | Financial instruments and other inventory positions owned
Derivative [Line Items]
Derivative Assets (1)	0	6
Trading securities | Equity options | Financial instruments and other inventory positions sold, but not yet purchased
Derivative [Line Items]
Derivative Liabilities (2)	$ 0	$ 0

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Financial Instruments and Other Inventory Positions Owned and Financial Instruments and Other Inventory Positions Sold, but Not Yet Purchased - Unrealized Gains/(Losses) on Derivative Instruments (Details) - Not Designated as Hedging Instrument - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized Gain (Loss) on Derivatives Instruments	$ 4,267	$ (14,775)
Interest rate derivative contract | Investment banking
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized Gain (Loss) on Derivatives Instruments	(795)	(292)
Interest rate derivative contract | Institutional brokerage
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized Gain (Loss) on Derivatives Instruments	5,062	(14,738)
Credit default swap index contract | Institutional brokerage
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized Gain (Loss) on Derivatives Instruments	$ 0	$ 255

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Financial Instruments and Other Inventory Positions Owned and Financial Instruments and Other Inventory Positions Sold, but Not Yet Purchased - Additional Information (Details) - Maximum risk of loss $ in Millions	Mar. 31, 2018 USD ($)
Counterparties not required to post collateral
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Uncollateralized credit exposure	$ 17.0
Notional contract amount	179.9
One unnamed financial institutional not required to post collateral
Fair Value, Concentration of Risk, Financial Statement Captions [Line Items]
Uncollateralized credit exposure	$ 12.9

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Fair Value of Financial Instruments - Fair Value Option (Details) - Merchant Banking Investments - Level III - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017
Fair Value, Option, Quantitative Disclosures [Line Items]
Investments at fair value	$ 15.0		$ 14.1
Gains from changes in fair value	$ 0.8	$ 0.5

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Fair Value of Financial Instruments - Information about Significant Unobservable Inputs used in Fair Value Measurement (Details)	3 Months Ended
	Mar. 31, 2018
Interest rate locks | Financial instruments and other inventory positions owned | Minimum | Discounted cash flow | Level III
Fair Value Inputs Assets and Liabilities Quantitative Information [Line Items]
Unamortized premium over the MMD curve	1.67
Interest rate locks | Financial instruments and other inventory positions owned | Maximum | Discounted cash flow | Level III
Fair Value Inputs Assets and Liabilities Quantitative Information [Line Items]
Unamortized premium over the MMD curve	38.06
Interest rate locks | Financial instruments and other inventory positions owned | Weighted Average | Discounted cash flow | Level III
Fair Value Inputs Assets and Liabilities Quantitative Information [Line Items]
Unamortized premium over the MMD curve	23.8
U.S. government agency securities | Minimum | Level II
Fair Value Inputs Assets and Liabilities Quantitative Information [Line Items]
Market yields basis points spreads to treasury securities (as a percent)	2.93%
Prepayment expectations based on CPR (as a percent)	0.10%
U.S. government agency securities | Maximum | Level II
Fair Value Inputs Assets and Liabilities Quantitative Information [Line Items]
Market yields basis points spreads to treasury securities (as a percent)	3.48%
Prepayment expectations based on CPR (as a percent)	13.30%
Equity investment in private company | Investments | Minimum | Market approach | Level III
Fair Value Inputs Assets and Liabilities Quantitative Information [Line Items]
Revenue multiple	2.0
EBITDA multiple	10.7
Equity investment in private company | Investments | Maximum | Market approach | Level III
Fair Value Inputs Assets and Liabilities Quantitative Information [Line Items]
Revenue multiple	4.8
EBITDA multiple	15
Equity investment in private company | Investments | Weighted Average | Market approach | Level III
Fair Value Inputs Assets and Liabilities Quantitative Information [Line Items]
Revenue multiple	4.2
EBITDA multiple	12.4
Interest rate locks | Financial instruments and other inventory positions sold, but not yet purchased | Minimum | Discounted cash flow | Level III
Fair Value Inputs Assets and Liabilities Quantitative Information [Line Items]
Unamortized premium over the MMD curve	2.27
Interest rate locks | Financial instruments and other inventory positions sold, but not yet purchased | Maximum | Discounted cash flow | Level III
Fair Value Inputs Assets and Liabilities Quantitative Information [Line Items]
Unamortized premium over the MMD curve	35.6
Interest rate locks | Financial instruments and other inventory positions sold, but not yet purchased | Weighted Average | Discounted cash flow | Level III
Fair Value Inputs Assets and Liabilities Quantitative Information [Line Items]
Unamortized premium over the MMD curve	13.62

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Fair Value of Financial Instruments - Additional Information (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value attributable to third party ownership	$ 161,590	$ 165,564
Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets	1,207,158	1,583,953
Level III
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Total assets	$ 124,784	$ 128,081
Percentage of Level III assets to financial instruments measured at fair value	10.40%	8.20%
U.S. government agency securities | Minimum | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Market yields basis points spreads to treasury securities (as a percent)	2.93%
U.S. government agency securities | Maximum | Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Market yields basis points spreads to treasury securities (as a percent)	3.48%
Noncontrolling interests in a consolidated merchant banking fund
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investments at fair value attributable to third party ownership	$ 47,015	$ 44,397

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Fair Value of Financial Instruments - Valuation of Financial Instruments by Pricing Observability Levels (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity securities	$ 16,009	$ 51,896
Convertible securities	90,841	74,456
Fixed income securities	35,582	30,145
Taxable securities	50,346	67,699
Tax-exempt securities	449,016	744,241
Short-term securities	113,775	62,251
Mortgage-backed securities	284	481
U.S. government agency securities	258,684	317,318
U.S. government securities	299	9,317
Derivative contracts	18,967	25,573
Derivative contracts	(178,161)	(213,783)
Total financial instruments and other inventory positions owned	1,033,803	1,383,377
Equity securities	77,542	101,517
Fixed income securities	29,998	30,292
U.S. government agency securities	23,674	49,077
U.S. government securities	185,010	213,312
Derivative contracts	4,245	5,029
Derivative contracts	(179,616)	(225,320)
Total financial instruments and other inventory positions sold, but not yet purchased	320,469	399,227
Securities posted as collateral to its counterparties	0	0
Level I
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity securities	1,360	1,863
U.S. government securities	299	9,317
Derivative contracts		6
Total financial instruments and other inventory positions owned	1,659	11,186
Cash equivalents	1,896	3,782
Investments at fair value	39,953	39,504
Total assets	43,508	54,472
Equity securities	74,239	91,934
U.S. government securities	185,010	213,312
Total financial instruments and other inventory positions sold, but not yet purchased	259,249	305,246
Level II
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity securities	14,649	50,033
Convertible securities	90,841	74,456
Fixed income securities	35,582	30,145
Taxable securities	50,346	67,699
Tax-exempt securities	449,016	743,541
Short-term securities	113,056	61,537
U.S. government agency securities	258,684	317,318
Derivative contracts	194,984	239,224
Total financial instruments and other inventory positions owned	1,207,158	1,583,953
Total assets	1,207,158	1,583,953
Equity securities	3,303	9,583
Fixed income securities	29,998	30,292
U.S. government agency securities	23,674	49,077
Derivative contracts	182,472	225,916
Total financial instruments and other inventory positions sold, but not yet purchased	239,447	314,868
Level III
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Tax-exempt securities		700
Short-term securities	719	714
Mortgage-backed securities	284	481
Derivative contracts	2,144	126
Total financial instruments and other inventory positions owned	3,147	2,021
Investments at fair value	121,637	126,060
Total assets	124,784	128,081
Derivative contracts	1,389	4,433
Total financial instruments and other inventory positions sold, but not yet purchased	1,389	4,433
Measured on a recurring basis
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Equity securities	16,009	51,896
Convertible securities	90,841	74,456
Fixed income securities	35,582	30,145
Taxable securities	50,346	67,699
Tax-exempt securities	449,016	744,241
Short-term securities	113,775	62,251
Mortgage-backed securities	284	481
U.S. government agency securities	258,684	317,318
U.S. government securities	299	9,317
Derivative contracts	18,967	25,573
Total financial instruments and other inventory positions owned	1,033,803	1,383,377
Cash equivalents	1,896	3,782
Investments at fair value	161,590	165,564
Total assets	1,197,289	1,552,723
Equity securities	77,542	101,517
Fixed income securities	29,998	30,292
U.S. government agency securities	23,674	49,077
U.S. government securities	185,010	213,312
Derivative contracts	4,245	5,029
Total financial instruments and other inventory positions sold, but not yet purchased	$ 320,469	$ 399,227

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Fair Value of Financial Instruments - Changes in Fair Value Associated with Level III Financial Instruments (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	$ 128,081	$ 147,142
Purchases	601	7,823
Sales	(5,919)	(38,847)
Transfers in	0	0
Transfers out	(700)
Realized gains/(losses)	5,162	20,331
Unrealized gains/(losses)	(2,441)	(16,771)
Ending balance	124,784	119,678
Unrealized gains/ (losses) for assets held at period end	1,283	6,115
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	4,433	1,487
Purchases	(1,305)	(719)
Sales	3,226	0
Transfers in	0	0
Realized gains/(losses)	(1,921)	719
Unrealized gains/(losses)	(3,044)	2,419
Ending balance	1,389	3,906
Unrealized gains/(losses) for liabilities held at period end	1,389	3,061
Financial instruments and other inventory positions owned
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	2,021	23,823
Purchases		1,236
Sales	(1,765)	(14,378)
Transfers in	0	0
Transfers out	(700)
Realized gains/(losses)	1,760	11,675
Unrealized gains/(losses)	1,831	(13,371)
Ending balance	3,147	8,985
Unrealized gains/ (losses) for assets held at period end	2,152	(378)
Investments
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	126,060	123,319
Purchases	601	6,587
Sales	(4,154)	(24,469)
Transfers in	0	0
Realized gains/(losses)	3,402	8,656
Unrealized gains/(losses)	(4,272)	(3,400)
Ending balance	121,637	110,693
Unrealized gains/ (losses) for assets held at period end	(869)	6,493
Taxable securities | Financial instruments and other inventory positions owned
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance		2,686
Sales		(2,703)
Transfers out		0
Realized gains/(losses)		716
Unrealized gains/(losses)		(699)
Tax-exempt securities | Financial instruments and other inventory positions owned
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	700	1,077
Transfers in	0	0
Transfers out	(700)
Unrealized gains/(losses)		40
Ending balance		1,117
Unrealized gains/ (losses) for assets held at period end		40
Short-term securities | Financial instruments and other inventory positions owned
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	714	744
Transfers in	0	0
Unrealized gains/(losses)	5	0
Ending balance	719	744
Unrealized gains/ (losses) for assets held at period end	5
Mortgage-backed securities | Financial instruments and other inventory positions owned
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	481	5,364
Purchases		996
Sales	(5)	(790)
Transfers in	0	0
Realized gains/(losses)		314
Unrealized gains/(losses)	(192)	(393)
Ending balance	284	5,491
Unrealized gains/ (losses) for assets held at period end	3	(71)
Derivative contracts | Financial instruments and other inventory positions owned
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	126	13,952
Purchases		240
Sales	(1,760)	(10,885)
Transfers in	0	0
Realized gains/(losses)	1,760	10,645
Unrealized gains/(losses)	2,018	(12,319)
Ending balance	2,144	1,633
Unrealized gains/ (losses) for assets held at period end	2,144	(347)
Derivative contracts | Financial instruments and other inventory positions sold, but not yet purchased
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Beginning balance	4,433	1,487
Purchases	(1,305)	(719)
Sales	3,226	0
Transfers in	0	0
Transfers out	0	0
Realized gains/(losses)	(1,921)	719
Unrealized gains/(losses)	(3,044)	2,419
Ending balance	1,389	3,906
Unrealized gains/(losses) for liabilities held at period end	$ 1,389	$ 3,061

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Variable Interest Entities - Schedule of Consolidated Variable Interest Entities (Details) - Variable Interest Entity, Primary Beneficiary $ in Thousands	Mar. 31, 2018 USD ($)
Variable Interest Entity [Line Items]
Consolidated VIE assets	$ 333,402
Consolidated VIE liabilities	202,830
Receivables from brokers, dealers and clearing organizations
Variable Interest Entity [Line Items]
Consolidated VIE assets	3,223
Financial instruments and other inventory positions owned and pledged as collateral
Variable Interest Entity [Line Items]
Consolidated VIE assets	216,884
Investments
Variable Interest Entity [Line Items]
Consolidated VIE assets	106,515
Other assets
Variable Interest Entity [Line Items]
Consolidated VIE assets	6,780
Short-term financing
Variable Interest Entity [Line Items]
Consolidated VIE liabilities	136,284
Payables to brokers, dealer and clearing organizations
Variable Interest Entity [Line Items]
Consolidated VIE liabilities	6,169
Financial instruments and other inventory positions sold, but not yet purchased
Variable Interest Entity [Line Items]
Consolidated VIE liabilities	51,531
Other liabilities and accrued expenses
Variable Interest Entity [Line Items]
Consolidated VIE liabilities	$ 8,846

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Variable Interest Entities - Additional Information (Details) - USD ($)	Mar. 31, 2018	Dec. 31, 2017
Variable Interest Entity, Primary Beneficiary
Variable Interest Entity [Line Items]
Available bank line financing	$ 25,000,000
Variable Interest Entity, Not Primary Beneficiary, Aggregated Disclosure
Variable Interest Entity [Line Items]
Variable interest entities, nonconsolidated net assets	500,000,000	$ 600,000,000
Variable interest entities, exposure to loss	6,400,000
Variable interest entity, nonconsolidated liabilities	$ 0	$ 0

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Receivables from and Payables to Brokers, Dealers and Clearing Organizations - Amounts Receivable from Brokers, Dealers and Clearing Organizations (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Brokers and Dealers [Abstract]
Receivable arising from unsettled securities transactions	$ 3,223	$ 9,218
Receivable from clearing organizations	7,991	109,270
Deposits with clearing organizations	14,745	11,019
Receivable from brokers and dealers	16,011	12,041
Other	4,332	3,846
Total receivables from brokers, dealers and clearing organizations	$ 46,302	$ 145,394

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Receivables from and Payables to Brokers, Dealers and Clearing Organizations - Amounts Payable to Brokers, Dealers and Clearing Organizations (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Brokers and Dealers [Abstract]
Payable arising from unsettled securities transactions	$ 6,169	$ 808
Payable to clearing organizations	25,655	0
Due to brokers and dealers	1,758	18,584
Total payables to brokers, dealers and clearing organizations	$ 33,582	$ 19,392

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Receivables from and Payables to Brokers, Dealers and Clearing Organizations - Additional Information (Details)	Mar. 31, 2018 USD ($)
Pershing clearing arrangement
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]
Excess net capital required	$ 120,000,000

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Investments - Schedule of Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Schedule of Investments [Line Items]
Investments at fair value	$ 161,590	$ 165,564
Investments at cost	1,661	2,416
Investments accounted for under the equity method	6,488	8,232
Total investments	169,739	176,212
Less investments attributable to noncontrolling interests (1)
Schedule of Investments [Line Items]
Investments at fair value	47,015	44,397
Consolidated Entity, excluding third party ownership
Schedule of Investments [Line Items]
Total investments	$ 122,724	$ 131,815

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Investments - Additional Information (Details) $ in Millions	Mar. 31, 2018 USD ($)
Investments, All Other Investments [Abstract]
Estimated fair market value of investments carried at cost	$ 3.0

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Other Assets - Schedule of Other Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Fee receivables	$ 23,602	$ 20,884
Income tax receivables	19,193	0
Accrued interest receivables	9,838	6,981
Forgivable loans, net	7,756	7,452
Prepaid expenses	6,439	6,769
Secured loan receivables	2,975	2,975
Other	7,621	9,773
Total other assets	$ 77,424	$ 54,834

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Short-Term Financing - Summary of Short Term Financing and Weighted Average Interest Rate on Borrowings (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Short-term Debt [Line Items]
Oustanding Balance	$ 186,254	$ 289,937
Commercial paper (secured)
Short-term Debt [Line Items]
Oustanding Balance	$ 49,970	$ 49,974
Weighted Average Interest Rate	2.70%	2.32%
Prime broker arrangements
Short-term Debt [Line Items]
Oustanding Balance	$ 136,284	$ 239,963
Weighted Average Interest Rate	2.50%	2.23%

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Short-Term Financing - Additional Information (Details)	3 Months Ended
	Mar. 31, 2018 USD ($) program	Dec. 31, 2017 USD ($)
Short-term Debt [Line Items]
Short-term financing	$ 186,254,000	$ 289,937,000
Commercial paper (secured)
Short-term Debt [Line Items]
Number of commercial paper programs | program	2
Short-term financing	$ 49,970,000	$ 49,974,000
Commercial paper (secured) | Minimum
Short-term Debt [Line Items]
Debt term	27 days
Commercial paper (secured) | Maximum
Short-term Debt [Line Items]
Debt term	270 days
Commercial paper (secured) | CP Series II A
Short-term Debt [Line Items]
Excess net capital required	$ 100,000,000
Commercial paper (secured) | CP Series II A | Weighted Average
Short-term Debt [Line Items]
Debt term	8 days
Bank lines (secured) | Committed Credit Facility
Short-term Debt [Line Items]
Debt term	1 year
Line of credity, maximum borrowing capacity	$ 200,000,000
Minimum net capital required	120,000,000
Short-term financing	0
Bank lines (secured) | Uncommitted Credit Facility
Short-term Debt [Line Items]
Line of credity, maximum borrowing capacity	85,000,000
Short-term financing	$ 0

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Contingencies, Commitments and Guarantees - Schedule of Aggregate Minimum Lease Commitments Under Operating Leases (Details) $ in Thousands	Mar. 31, 2018 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Remainder of 2018	$ 11,352
2019	13,748
2020	13,569
2021	9,245
2022	7,902
Thereafter	22,859
Total	$ 78,675

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Contingencies, Commitments and Guarantees - Additional Information (Details) $ in Millions	Mar. 31, 2018 USD ($)
Commitments and Contingencies Disclosure [Abstract]
Commitments to investment vehicles	$ 80.3

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Shareholders' Equity - Additional Information (Details) - USD ($)	3 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Mar. 31, 2017	Dec. 31, 2017	Aug. 10, 2017	Aug. 14, 2015
Equity, Class of Treasury Stock [Line Items]
Aggregate purchase price		$ 16,797,000	$ 19,788,000
Shares of common stock purchased from restricted stock award related to recipients' employment tax obligations		187,860	230,097
Repurchase of common stock for employee tax withholding		$ 16,800,000	$ 17,800,000
Reissuance of treasury shares as a result of employee vesting		574,594	650,155
Cash dividends paid		$ 30,600,000
Cash dividends declared		$ 1.995	$ 0.3125
Noncontrolling interests proportionate share of equity		$ 47,015,000		$ 47,903,000
Other comprehensive income or loss attributed to noncontrolling interests		0	$ 0
Merchant banking funds
Equity, Class of Treasury Stock [Line Items]
Noncontrolling interests proportionate share of equity		41,800,000		42,700,000
Senior living fund
Equity, Class of Treasury Stock [Line Items]
Noncontrolling interests proportionate share of equity		$ 5,200,000		$ 5,200,000
Share Repurchase Program Authorized 2017
Equity, Class of Treasury Stock [Line Items]
Repurchase of common stock, authorized amount					$ 150,000,000
Shares repurchased		0
Share Repurchase Program Authorized 2015
Equity, Class of Treasury Stock [Line Items]
Repurchase of common stock, authorized amount						$ 150,000,000
Shares repurchased			27,530
Average share price			$ 72.63
Aggregate purchase price			$ 2,000,000
Quarterly dividend
Equity, Class of Treasury Stock [Line Items]
Cash dividends paid		$ 0.375
Quarterly dividend | Cash dividends declared
Equity, Class of Treasury Stock [Line Items]
Cash dividends declared	$ 0.375
Annual special cash dividend
Equity, Class of Treasury Stock [Line Items]
Cash dividends paid		$ 1.62

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Shareholders' Equity - Rollforward (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Shareholders' Equity at beginning of period	$ 693,332
Noncontrolling interests at beginning of period	47,903
Total Shareholders' Equity at beginning of period	741,235
Common Shareholders' Equity, Net income	10,603	$ 20,275
Noncontrolling Interests, Net income	16	2,929
Total Shareholders' Equity, Net income	10,619	$ 23,204
Dividends	(30,575)
Amortization/issuance of restricted stock	$ 34,416
Repurchase of common stock for employee tax withholding	(187,860)	(230,097)
Repurchase of common stock for employee tax withholding	$ (16,797)
Shares reserved/issued for director compensation	81
Other comprehensive income	(529)
Cumulative effect upon adoption of new accounting standard, net of tax (1)	(3,597)
Fund capital distributions, net	(904)
Common Shareholders' Equity at period end	687,992
Noncontrolling Interest at period end	47,015
Total Shareholders' Equity at period end	$ 735,007
Common Shares Outstanding
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Shares Outstanding at beginning of period	12,911,149
Issuance of treasury shares for restricted stock vestings	574,594
Repurchase of common stock for employee tax withholding	(187,860)
Shares reserved/issued for director compensation	942
Common Shares Outstanding at period end	13,298,825
Common Shareholders' Equity
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Common Shareholders' Equity at beginning of period	$ 693,332
Dividends	(30,575)
Amortization/issuance of restricted stock	34,416
Repurchase of common stock for employee tax withholding	(16,797)
Shares reserved/issued for director compensation	81
Other comprehensive income	(529)
Cumulative effect upon adoption of new accounting standard, net of tax (1)	(3,597)
Fund capital distributions, net	0
Common Shareholders' Equity at period end	687,992
Noncontrolling Interests
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Noncontrolling interests at beginning of period	47,903
Dividends	0
Amortization/issuance of restricted stock	0
Repurchase of common stock for employee tax withholding	0
Shares reserved/issued for director compensation	0
Other comprehensive income	0
Cumulative effect upon adoption of new accounting standard, net of tax (1)	0
Fund capital distributions, net	(904)
Noncontrolling Interest at period end	$ 47,015

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Compensation Plans - Summary of Outstanding Equity Awards (Details) - shares	Mar. 31, 2018	Dec. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options	81,667	0
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock outstanding	1,926,530	2,225,617
Leadership grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock outstanding	298,568	244,772
Amended And Restated 2003 Annual And Long-Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock Options	81,667
Amended And Restated 2003 Annual And Long-Term Incentive Plan | Leadership grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock outstanding	298,568
Total restricted stock related to compensation | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock outstanding	1,143,001
Total restricted stock related to compensation | Amended And Restated 2003 Annual And Long-Term Incentive Plan | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock outstanding	882,770.00
Total restricted stock related to compensation | Amended And Restated 2003 Annual And Long-Term Incentive Plan | Annual grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock outstanding	666,665
Total restricted stock related to compensation | Amended And Restated 2003 Annual And Long-Term Incentive Plan | Sign-on grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock outstanding	216,105
Total restricted stock related to compensation | 2016 Employment Inducement Award Plan | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock outstanding	260,231
Simmons Deal Consideration (1) | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Restricted stock outstanding	783,529

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Compensation Plans - Schedule of RSU Valuation Assumptions (Details) - Restricted stock units	3 Months Ended
	Mar. 31, 2018
2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free Interest Rate	2.40%
Expected Stock Price Volatility	34.80%
2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free Interest Rate	1.62%
Expected Stock Price Volatility	35.90%
2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free Interest Rate	0.98%
Expected Stock Price Volatility	34.90%
2015
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free Interest Rate	0.90%
Expected Stock Price Volatility	29.80%

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Compensation Plans - Schedule of Stock Options Valuation Assumptions (Details) - Stock options	3 Months Ended
	Mar. 31, 2018 $ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Risk-free interest rate	2.82%
Dividend yield	3.22%
Expected stock price volatility	37.20%
Expected life of options (in years)	7 years
Fair value of options granted	$ 24.49

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Compensation Plans - Changes in Unvested Restricted Stock (Details) - Restricted Stock	3 Months Ended
	Mar. 31, 2018 $ / shares shares
Unvested Restricted Stock or Stock Units
Beginning Balance | shares	2,225,617
Granted | shares	276,437
Vested | shares	(574,594)
Cancelled | shares	(930)
Ending Balance | shares	1,926,530
Weighted Average Grant Date Fair Value (in dollars per share)
Beginning Balance | $ / shares	$ 46.40
Granted | $ / shares	90.00
Vested | $ / shares	50.58
Cancelled | $ / shares	35.86
Ending Balance | $ / shares	$ 51.41

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Compensation Plans - Changes in Unvested Restricted Stock Units (Details) - Restricted stock units	3 Months Ended
	Mar. 31, 2018 $ / shares shares
Unvested Restricted Stock or Stock Units
Beginning Balance | shares	244,772
Granted | shares	53,796
Vested | shares	0
Cancelled | shares	0
Ending Balance | shares	298,568
Weighted Average Grant Date Fair Value (in dollars per share)
Beginning Balance | $ / shares	$ 27.89
Granted | $ / shares	92.93
Vested | $ / shares	0.00
Cancelled | $ / shares	0.00
Ending Balance | $ / shares	$ 39.61

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Compensation Plans - Changes in Outstanding Stock Options (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Options Outstanding
Beginning Balance	0
Granted	81,667
Exercised	0
Cancelled	0
Ending Balance	81,667	0
Weighted Average Exercise Price (in dollars per share)
Beginning Balance	$ 0.00
Granted	99.00
Exercised	0.00
Cancelled	0.00
Ending Balance	$ 99.00	$ 0.00
Weighted Average Remaining Contractual Term (in Years)
Weighted Average Remaining Contractual Term (in Years)	9 years 11 months	0 days
Aggregate Intrinsic Value
Aggregate Intrinsic Value	$ 0	$ 0

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Compensation Plans - Additional Information (Details)		3 Months Ended
	May 16, 2016 USD ($) shares	Mar. 31, 2018 USD ($) plan shares	Mar. 31, 2017 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of stock-based compensation plans | plan		2
Compensation expense related to employee restricted stock awards		$ 8,900,000	$ 100,000
Forfeitures recorded as a result of violating the post-termination restrictions			1,700,000
Tax benefit related to compensation costs for stock-based compensation arrangements		$ 1,200,000	$ 600,000
Remaining weighted average contractual term of stock options		4 years 11 months
Intrinsic value of options exercised		$ 0
Exercises during the period | shares		0
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shares granted | shares		276,437
Annual grants
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period in years		3 years
Annual grant expense period		1 year
Sign-on grants | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant requisite service period		1 year
Sign-on grants | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant requisite service period		5 years
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Performance period for restricted stock units		36 months
Number of years risk free interest rate		3 years
Number of shares granted | shares		53,796
Restricted stock and restricted stock units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized compensation cost related to restricted stock		$ 18,500,000
Weighted average period over which restricted stock expense expected to be recognized		1 year 2 months 15 days
Stock options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Grant requisite service period		5 years
Unrecognized compensation cost related to restricted stock		$ 2,000,000.0
Stock options | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term of stock options		10 years
Amended And Restated 2003 Annual And Long-Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Equity award grants authorized | shares		8,200,000
Shares available for future issuance | shares		700,000
2016 Employment Inducement Award Plan | Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Value of restricted stock granted	$ 11,600,000
Number of shares granted | shares	286,776
2017 and 2018 | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		150.00%
Average adjusted return on equity targets | 2017 and 2018 | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		75.00%
Average adjusted return on equity targets | Prior to 2017 | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		50.00%
Total shareholder return relative to members of a predetermined peer group | 2017 and 2018 | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		75.00%
Total shareholder return | Prior to 2017 | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		50.00%
Probable | Average adjusted return on equity targets | 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		50.00%
Probable | Average adjusted return on equity targets | 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting percentage		75.00%

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Compensation Plans - Acquisition-related Compensation Arrangements (Details) - Performance award plan - Simmons - Cash - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Requisite service period for performance award plan	3 years
Performance award plan accrual	$ 35.1
Compensation expense related to this performance award plan	$ 4.3	$ 1.3

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Compensation Plans - Deferred Compensation Plans (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Dec. 31, 2017
Nonqualified Deferred Compensation Plan
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Plan Assets	$ 32.1	$ 31.5
Plan Liabilities	$ 32.2	$ 31.6
Mutual Fund Restricted Shares
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Award Vesting Period	3 years
New Employees | Mutual Fund Restricted Shares | Minimum
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Requisite service period	2 years
New Employees | Mutual Fund Restricted Shares | Maximum
Deferred Compensation Arrangement with Individual, Excluding Share-based Payments and Postretirement Benefits [Line Items]
Requisite service period	5 years

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Earnings Per Share - Computation of Earnings Per Share (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Net income applicable to Piper Jaffray Companies	$ 10,603	$ 20,275
Earnings allocated to participating securities (1)	(4,168)	(3,447)
Net income applicable to Piper Jaffray Companies' common shareholders (2)	$ 6,435	$ 16,828
Shares for basic and diluted calculations:
Average shares used in basic computation	13,096,000	12,594,000
Average shares used in diluted computation	13,382,000	12,922,000
Earnings per common share
Basic	$ 0.47	$ 1.33
Diluted	$ 0.47	$ 1.31
Weighted average participating shares outstanding	2,089,155	2,630,742
Common shares excluded from diluted EPS	1,926,530
Stock options
Shares for basic and diluted calculations:
Dilutive impact of securities	0	1,000
Restricted stock units
Shares for basic and diluted calculations:
Dilutive impact of securities	286,000	327,000

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Segment Reporting - Reportable Segment Financial Results (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Capital Markets [Abstract]
Investment banking	$ 120,841	$ 132,250
Institutional sales and trading	27,645	39,136
Management and performance fees	12,589	16,007
Investment income/(loss)	2,912	10,375
Net revenues	169,062	200,529
Operating expenses (1)	161,024	177,720
Segment pre-tax operating income	$ 8,038	$ 22,809
Segment pre-tax operating margin	4.80%	11.40%
Asset Management [Abstract]
Total management and performance fees	$ 12,589	$ 16,007
Investment income/(loss)	2,912	10,375
Net revenues	169,062	200,529
Operating expenses (1)	161,024	177,720
Segment pre-tax operating income/(loss)	$ 8,038	$ 22,809
Segment pre-tax operating margin	4.80%	11.40%
Intangible asset amortization	$ 2,615	$ 3,822
Capital Markets
Capital Markets [Abstract]
Investment banking	120,657	132,672
Institutional sales and trading	34,340	43,346
Management and performance fees	1,388	1,997
Investment income/(loss)	3,298	10,508
Long-term financing expenses	(1,787)	(2,238)
Net revenues	157,896	186,285
Operating expenses (1)	148,860	164,060
Segment pre-tax operating income	$ 9,036	$ 22,225
Segment pre-tax operating margin	5.70%	11.90%
Asset Management [Abstract]
Total management and performance fees	$ 1,388	$ 1,997
Investment income/(loss)	3,298	10,508
Net revenues	157,896	186,285
Operating expenses (1)	148,860	164,060
Segment pre-tax operating income/(loss)	$ 9,036	$ 22,225
Segment pre-tax operating margin	5.70%	11.90%
Intangible asset amortization	$ 1,214	$ 2,544
Capital Markets | Equities financing
Capital Markets [Abstract]
Investment banking	37,642	23,382
Capital Markets | Debt financing
Capital Markets [Abstract]
Investment banking	7,686	16,408
Capital Markets | Advisory services
Capital Markets [Abstract]
Investment banking	75,329	92,882
Capital Markets | Equities
Capital Markets [Abstract]
Institutional sales and trading	18,006	20,106
Capital Markets | Fixed income
Capital Markets [Abstract]
Institutional sales and trading	16,334	23,240
Asset Management
Capital Markets [Abstract]
Management and performance fees	11,201	14,010
Investment income/(loss)	35	234
Net revenues	11,166	14,244
Operating expenses (1)	12,164	13,660
Segment pre-tax operating income	$ (998)	$ 584
Segment pre-tax operating margin	(8.90%)	4.10%
Asset Management [Abstract]
Management fees	$ 11,193	$ 14,010
Performance fees	8	0
Total management and performance fees	11,201	14,010
Investment income/(loss)	35	234
Net revenues	11,166	14,244
Operating expenses (1)	12,164	13,660
Segment pre-tax operating income/(loss)	$ (998)	$ 584
Segment pre-tax operating margin	(8.90%)	4.10%
Intangible asset amortization	$ 1,401	$ 1,278

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Segment Reporting - Reportable Segment Assets (Details) - USD ($) $ in Thousands	Mar. 31, 2018	Dec. 31, 2017
Segment Reporting, Asset Reconciling Item [Line Items]
Reportable segment assets	$ 1,577,366	$ 2,024,683
Capital Markets
Segment Reporting, Asset Reconciling Item [Line Items]
Reportable segment assets	1,495,768	1,933,050
Asset Management
Segment Reporting, Asset Reconciling Item [Line Items]
Reportable segment assets	$ 81,598	$ 91,633

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Net Capital Requirements and Other Regulatory Matters - Additional Information (Details)	Mar. 31, 2018 USD ($)
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]
Minimum net capital requirement	$ 1,000,000.0
Net capital	185,800,000
Excess net capital	184,800,000
Pershing clearing arrangement
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]
Excess net capital required	120,000,000
Committed credit facility | Senior Notes
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]
Minimum net capital required	120,000,000
Commercial paper | CP Series II A
Schedule Of Compliance With Regulatory Capital Requirements For Broker Dealer [Line Items]
Excess net capital required	$ 100,000,000

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Income Taxes - Additional Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Tax Disclosure [Abstract]
Income tax benefit	$ (2,581)	$ (395)
Tax benefit for stock-based compensation awards vesting during the period	5,000	$ 7,000
Additional income tax expense for remeasurement of deferred tax assets	$ 1,000