10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

 (Mark One)

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

For the quarterly period ended June 30, 2017

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 number: 000-26427

Stamps.com Inc.

(Exact name of registrant as specified in its charter)

Delaware	77-0454966
(State or other jurisdiction of incorporation or organization)	(I.R.S. Employer Identification No.)

1990 E. Grand Avenue

El Segundo, California 90245

(Address of principal executive offices, including zip code)

(310) 482-5800

(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 ☑   No ☐

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate website, 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 ☑   No ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, smaller reporting company, or an emerging growth company. See definitions of “large accelerated filer,” “accelerated filer,” “smaller reporting company,” and “emerging growth company” in Rule 12b‑2 of the Exchange Act. (Check one):

Large accelerated filer  ☑	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 ☑

· As of July 31, 2017, there were 16,908,987 shares of the Registrant’s Common Stock issued and outstanding.

STAMPS.COM INC. AND SUBSIDIARIES

FORM 10-Q QUARTERLY REPORT FOR THE QUARTER ENDED JUNE 30, 2017

TABLE OF CONTENTS

			Page
PART I - FINANCIAL INFORMATION			1
	ITEM 1.	FINANCIAL STATEMENTS	1
	ITEM 2.	MANAGEMENT'S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	19
	ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	34
	ITEM 4.	CONTROLS AND PROCEDURES	34
PART II – OTHER INFORMATION			34
	ITEM 1.	LEGAL PROCEEDINGS	34
	ITEM 1A.	RISK FACTORS	34
	ITEM 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	35
	ITEM 3.	DEFAULTS UPON SENIOR SECURITIES	35
	ITEM 4.	MINE SAFETY DISCLOSURES	35
	ITEM 5.	OTHER INFORMATION	35
	ITEM 6.	EXHIBITS	35

PART I - FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS

STAMPS.COM INC. AND SUBSIDIARIES

CONSOLIDATED BALANCE SHEETS

(In thousands, except per share data)

	June 30, 2017			December 31, 2016
	(Unaudited)
Assets
Current assets:
Cash and cash equivalents	$	110,343		$	106,932
Short-term investments		—			1,511
Accounts receivable, net		65,897			62,756
Other current assets		23,188			13,081
Total current assets		199,428			184,280
Property and equipment, net		38,199			36,829
Goodwill		239,705			239,705
Intangible assets, net		89,009			97,027
Deferred income taxes, net.		45,044			48,782
Other assets		5,127			3,506
Total assets	$	616,512		$	610,129
Liabilities and Stockholders’ Equity
Current liabilities:
Accounts payable and accrued expenses	$	75,503		$	86,205
Deferred revenue		3,851			3,858
Current portion of debt, net of debt issuance costs		7,360			6,329
Total current liabilities		86,714			96,392
Long-term debt, net of debt issuance costs		127,087			141,025
Total liabilities		213,801			237,417
Commitments and contingencies (Note 3)
Stockholders’ equity:
Common stock, $.001 par value per share
Authorized shares: 47,500 in 2017 and 2016
Issued shares: 31,278 in 2017 and 30,507 in 2016
Outstanding shares: 16,932in 2017 and 16,897 in 2016		54			53
Additional paid-in capital		907,787			855,344
Treasury stock, at cost, 14,346 shares in 2017 and 13,610 in 2016		(341,699	)		(252,981	)
Accumulated deficit		(163,438	)		(229,715	)
Accumulated other comprehensive income		7			11
Total stockholders’ equity		402,711			372,712
Total liabilities and stockholders’ equity	$	616,512		$	610,129

The accompanying notes are an integral part of these consolidated financial statements.

1

STAMPS.COM INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF INCOME

(In thousands, except per share data)

(Unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Revenues:
Service	$	102,685		$	72,590		$	195,105		$	141,696
Product		4,763			4,851			10,477			10,406
Insurance		4,393			4,082			8,833			8,593
Customized postage		4,276			2,467			6,718			5,104
Other		23			23			47			51
Total revenues		116,140			84,013			221,180			165,850
Cost of revenues (exclusive of amortization of intangible assets, which is included in general and administrative expense):
Service		12,726			8,857			25,402			18,151
Product		1,593			1,642			3,395			3,440
Insurance		1,213			1,266			2,581			2,629
Customized postage		3,557			1,955			5,449			4,122
Total cost of revenues		19,089			13,720			36,827			28,342
Gross profit		97,051			70,293			184,353			137,508
Operating expenses:
Sales and marketing		22,280			20,082			45,430			41,479
Research and development		11,628			8,131			22,150			16,468
General and administrative		21,451			17,113			40,433			32,375
Total operating expenses		55,359			45,326			108,013			90,322
Income from operations		41,692			24,967			76,340			47,186
Interest expense		(932	)		(905	)		(1,812	)		(1,820	)
Interest and other income		159			31			189			74
Income before income taxes		40,919			24,093			74,717			45,440
Income tax expense		9,879			9,802			10,539			17,911
Net income	$	31,040		$	14,291		$	64,178		$	27,529
Net income per share
Basic	$	1.83		$	0.82		$	3.79		$	1.58
Diluted	$	1.71		$	0.79		$	3.54		$	1.49
Weighted average shares outstanding
Basic		16,930			17,384			16,916			17,370
Diluted		18,125			18,192			18,147			18,428

The accompanying notes are an integral part of these consolidated financial statements.

2

STAMPS.COM INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME

(In thousands)

(Unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Net income	$	31,040		$	14,291		$	64,178		$	27,529
Other comprehensive income, net of tax:
Unrealized (loss) gain on investments		(2	)		(8	)		(4	)		4
Comprehensive income	$	31,038		$	14,283		$	64,174		$	27,533

The accompanying notes are an integral part of these consolidated financial statements.

3

STAMPS.COM INC. AND SUBSIDIARIES

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

(Unaudited)

	Six Months Ended June 30,
	2017			2016
Operating activities:
Net income	$	64,178		$	27,529
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization		10,626			8,778
Stock-based compensation expense		22,335			15,933
Deferred income tax expense		5,838			16,055
Stock option windfall tax expense (benefit)		—			(307	)
Accretion of debt issuance costs		186			186
Changes in operating assets and liabilities, net of assets and liabilities acquired:
Accounts receivable		(3,140	)		8,971
Other current assets, net of excess tax benefit from stock-based award activity		(10,107	)		(2,233	)
Other assets		(1,621	)		741
Deferred revenue		(7	)		1,405
Accounts payable and accrued expenses		(9,799	)		4,784
Net cash provided by operating activities		78,489			81,842
Investing activities:
Sale of short-term investments		1,502			3,632
Sale of long-term investments		10			66
Purchase of long-term investments		(4	)		(15	)
Acquisition of Endicia		—			(573	)
Acquisition of property and equipment		(4,360	)		(701	)
Net cash (used in) provided by investing activities		(2,852	)		2,409
Financing activities:
Proceeds from short term financing obligation, net of repayments		(524	)		510
Principal payments on term loan		(3,094	)		(2,061	)
Payment on revolving credit facility		(10,000	)		(10,000	)
Proceeds from exercise of stock options		28,641			7,042
Issuance of common stock under Employee Stock Purchase Plan		1,469			1,108
Repurchase of common stock		(87,919	)		(30,010	)
Shares withheld to satisfy statutory income tax withholding obligations		(799	)		—
Stock option windfall tax benefit		—			307
Net cash used in financing activities		(72,226	)		(33,104	)
Net increase in cash and cash equivalents		3,411			51,147
Cash and cash equivalents at beginning of period		106,932			65,126
Cash and cash equivalents at end of period	$	110,343		$	116,273
Supplemental information:
Capital expenditures accrued but not paid at period end	$	376		$	867
Issuance of 2015 and 2014 earn-out shares	$	—		$	63,209
Noncash adjustment of purchase price for Endicia acquisition	$	—		$	372
Tenant improvement allowance	$	848		$	676

The accompanying notes are an integral part of these consolidated financial statements.

4

STAMPS.COM INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

1. Summary of Significant Accounting Policies

Basis of Presentation

We prepared the consolidated financial statements included herein pursuant to the rules and regulations of the Securities and Exchange Commission (SEC). Certain information and footnote disclosures normally included in financial statements prepared in accordance with United States (U.S.) generally accepted accounting principles (GAAP) have been condensed or omitted pursuant to such rules and regulations. We believe that the disclosures are adequate to make the information presented not misleading. We recommend that these consolidated financial statements be read in conjunction with the audited consolidated financial statements and the notes thereto included in our latest annual report on Form 10-K for the fiscal year ended December 31, 2016, filed with the SEC on March 1, 2017.

In our opinion, these unaudited consolidated financial statements contain all adjustments (consisting only of normal recurring adjustments) considered necessary to present fairly our financial position as of June 30, 2017, our results of operations for the three and six months ended June 30, 2017, and our cash flows for the six months ended June 30, 2017.  The results of operations for the interim period are not necessarily indicative of the results that may be expected for the fiscal year ending December 31, 2017.

Principles of Consolidation

The consolidated financial statements include the accounts of Stamps.com Inc., Auctane LLC (ShipStation), Interapptive, Inc. (ShipWorks), PSI Systems Inc. (Endicia), ShippingEasy Group, Inc. (ShippingEasy) and PhotoStamps Inc.  In July 2016, we completed our acquisition of 100% of the outstanding shares of ShippingEasy.

Because 100% of the voting control of ShipStation, ShipWorks, Endicia and ShippingEasy is held by us, we have consolidated the results of operations of ShipStation, ShipWorks, Endicia and ShippingEasy from the date we obtained control in the accompanying consolidated financial statements. Similarly, due to our 100% control of PhotoStamps, Inc., PhotoStamps, Inc. is also consolidated in the accompanying consolidated financial statements from the date of its inception. Intercompany accounts and transactions between consolidated entities have been eliminated in consolidation.

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and the accompanying notes.  Actual results could differ from those estimates, and such differences may be material to the consolidated financial statements. Examples include estimates of loss contingencies, realizability of deferred income taxes, the estimates and assumptions used to calculate stock-based compensation, the estimates and assumptions used to calculate the allocation of the purchase price related to our acquisitions, and estimates regarding the useful lives of our building, amortizable intangible assets, and goodwill.

Business Combinations

The acquisition method of accounting is used for business combinations. The results of operations of acquired businesses are included in our consolidated financial statements prospectively from the date of acquisition. The fair value of purchase consideration is allocated to the assets acquired and liabilities assumed from the acquired entity and is generally based on their fair value at the acquisition date. The excess of the fair value of purchase consideration over the fair value of the assets acquired and liabilities assumed is recorded as goodwill. Historically, the primary items that have generated goodwill include anticipated synergies between the acquired business and the Company and the acquired assembled workforce, neither of which qualifies for recognition as an intangible asset. Acquisition-related expenses are recognized in our consolidated financial statements as incurred.

5

STAMPS.COM INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

Contingencies and Litigation

In the ordinary course of business, we are subject to various routine litigation matters as a claimant and a defendant. We record any amounts recovered in these matters when received. We establish loss provisions for claims against us when the loss is both probable and can be reasonably estimated.  If either or both of the criteria are not met, we assess whether there is at least a reasonable possibility that a loss, or additional losses, may have been incurred. If there is a reasonable possibility that a loss or additional loss may have been incurred for such proceedings, we disclose the estimate of the amount of loss or possible range of loss, or disclose that an estimate of loss cannot be made, as applicable.

Deferred Revenue

Our deferred revenue relates mainly to service revenue, which generally arises due to the timing of payment versus the provision of services for certain customers billed in advance.

Fair Value of Financial Instruments

Carrying amounts of certain of our financial instruments, including cash and cash equivalents, accounts receivable and accounts payable, approximate fair value due to their short maturities. The fair values of investments are determined using quoted market prices for those securities or similar financial instruments.  The Company’s outstanding debt held by third-party financial institutions is carried at cost, adjusted for debt issuance costs. The Company’s debt is not publicly traded and the carrying amount typically approximates fair value for debt that accrues interest at a variable rate for companies with similar financial characteristics as the Company, which are considered Level 2 inputs.

Goodwill

Goodwill represents the excess of the fair value of consideration given over the fair value of the tangible assets, identifiable intangible assets and liabilities assumed in a business combination.  We are required to test goodwill for impairment annually and whenever events or circumstances indicate the fair value of a reporting unit may be below its carrying value.  Goodwill is reviewed for impairment annually on October 1. A reporting unit is the operating segment or a business that is one level below that operating segment. Reporting units are aggregated as a single reporting unit if they have similar economic characteristics. We aggregated our reporting units into a single reporting unit because we determined they have similar economic characteristics.

Goodwill is reviewed for impairment annually on October 1 utilizing either a qualitative assessment or a two-step process.  We have an option to make a qualitative assessment of a reporting unit's goodwill for impairment.  If we choose to perform a qualitative assessment and determine the fair value more likely than not exceeds the carrying value, no further evaluation is necessary.  For reporting units where we perform the two-step process, the first step requires us to compare the fair value of each reporting unit, which we primarily determine using an income approach based on the present value of discounted cash flows, to the respective carrying value, which includes goodwill.  If the fair value of the reporting unit exceeds its carrying value, the goodwill is not considered impaired.  If the carrying value is higher than the fair value, there is an indication that impairment may exist and the second step is required.  In step two, the implied fair value of goodwill is calculated as the excess of the fair value of a reporting unit over the fair values assigned to its assets and liabilities.  If the implied fair value of goodwill is less than the carrying value of the reporting unit's goodwill, the difference is recognized as an impairment loss. As of June 30, 2017, we are not aware of any indicators of impairment that would require an impairment analysis other than our annual impairment analysis.

6

STAMPS.COM INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

Impairment of Long-Lived Assets and Intangible Assets

Long-lived assets including intangible assets with finite useful lives are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to future net cash flows expected to be generated by the asset.  If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets.  Assets to be disposed of are reported at the lower of the carrying amount or fair value less costs to sell.

Intangible assets that have indefinite useful lives are not amortized but, instead, are tested at least annually for impairment while intangible assets that have finite useful lives are amortized over their respective useful lives.

Income Taxes

We account for income taxes in accordance with Financial Accounting Standards Board (FASB) ASC Topic No. 740, Income Taxes (Income Taxes), which requires that deferred tax assets and liabilities be recognized using enacted tax rates for the effect of temporary differences between the book and tax basis of recorded assets and liabilities. Income Taxes also requires that deferred tax assets be reduced by a valuation allowance if it is more likely than not that some or all of the net deferred tax assets will not be realized. We record a valuation allowance to reduce our gross deferred tax assets to the amount that is more likely than not (a likelihood of more than 50 percent) to be realized.  In order for us to realize our deferred tax assets, we must be able to generate sufficient taxable income. We evaluate the appropriateness of our deferred tax assets and related valuation allowance in accordance with Income Taxes based on all available positive and negative evidence. As of June 30, 2017 and December 31, 2016, we do not have any valuation allowance recorded to reduce our gross deferred tax assets as we believe we have met the more likely than not threshold and we will realize our tax loss carry-forwards in the foreseeable future.

Property and Equipment

We account for property and equipment at cost less accumulated depreciation and amortization. We compute depreciation using the straight-line method over the estimated useful life of the asset, generally three to five years for furniture, fixtures and equipment and ten to forty years for building and building improvements. Leasehold improvements are capitalized and amortized over the shorter of the useful life of the asset or the remaining term of the lease.  We have a policy of capitalizing expenditures that materially increase assets’ useful lives and charging ordinary maintenance and repairs to operations as incurred. When property or equipment is disposed of, the cost and related accumulated depreciation and amortization are removed, and any gain or loss is included in operations.

Revenue Recognition

We recognize revenue from product sales or services rendered, as well as commissions from advertising or sale of products by third party vendors to our customer base when the following four revenue recognition criteria are met: persuasive evidence of an arrangement exists; delivery has occurred or services have been rendered; the selling price is fixed or determinable; and collectability is reasonably assured.

We earn service revenue in several different ways: (1) customers may pay us a monthly fee based on a subscription plan; (2) we may be compensated directly by the United States Postal Service (USPS) for certain qualifying customers under our USPS partnership; (3) we may earn transaction related revenue based on customers purchasing postage or printing shipping labels; (4) we may earn compensation by offering customers a discounted postage rate that is provided to the customers by our integration partners; and (5) we may earn other types of revenue shares or other compensation from specific customers or integration partners.  Revenue is recognized in the period that services are provided.

Customers purchase postage from the USPS through our mailing and shipping solutions.  Postage purchase funds that are transferred directly from the customers to the USPS are not recognized as revenue for this postage, as it is purchased by our customers directly from the USPS.

7

STAMPS.COM INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

Customized postage revenue, which includes the face value of postage, from the sale of PhotoStamps and PictureItPostage sheets and rolls is made pursuant to a sales contract that provides for transfer of both title and risk of loss upon our delivery to the carrier and revenue is recognized at that time.

On a limited basis, we allow third parties to offer products and promotions to our customer base. These arrangements generally provide payment in the form of a flat fee or revenue sharing arrangements where we receive payment upon customers accessing third party products and services. Total revenue from such advertising arrangements was not significant during the six months ended June 30, 2017 and June 30, 2016, respectively.

We provide our customers with the opportunity to purchase parcel insurance directly through our solutions. Insurance revenue represents the gross amount charged to the customer for purchasing insurance and the related cost represents the amount paid to our insurance providers. We recognize insurance revenue on insurance purchases upon the ship date of the insured package.

Short-Term Financing Obligations

We utilize short-term financing, which is separate from our debt, to fund certain Company operations.  Short-term financing obligations are included in accounts payable and accrued expenses in the accompanying consolidated balance sheets.  As of June 30, 2017, we had $15.2 million in short-term financing obligations and $90.3 million of unused short-term financing obligations credit. As of December 31, 2016, we had $15.6 million in short-term financing obligations and $90.0 million of unused credit.

Trademarks and Intangible Assets

Acquired trademarks and intangibles include both amortizable and non-amortizable assets and are included in intangible assets, net in the accompanying consolidated balance sheets. Intangible assets are carried at cost less accumulated amortization. Cost associated with internally developed intangible assets is typically expensed as incurred as research and development costs.  Amortization of amortizable intangible assets is calculated on a straight-line basis, which is consistent with the expected future cash flows.

Treasury Stock

During the six-months ended June 30, 2017 and June 30, 2016, we repurchased approximately 730,000 shares and 335,000 shares for $87.9 million and $30.0 million, respectively. Also, 6,670 shares were withheld to satisfy income tax obligations related to performance-based inducement equity awards issued to the General Manager and Chief Technology Officer of ShippingEasy on March 31, 2017.

Accounting Guidance Adopted in 2017

Share-based Payment Transactions to Employees

On January 1, 2017, the Company adopted Accounting Standards Update No. 2016-09, Compensation-Stock Compensation (Topic 718):  Improvements to Employee Share-Based Payment Accounting (ASU 2016-09) issued by the FASB on a prospective basis that changes the reporting for certain aspects of share-based payments. One aspect of the guidance requires that the income tax effects of share-based awards be recognized in the income tax provision in the consolidated statement of operations when the awards vest or are settled. Under the previous guidance, excess tax benefits and deficiencies were recognized in additional paid-in capital in the consolidated balance sheets when the awards vested or were settled.  For the six months ended June 30, 2017, the amount of excess tax benefits recognized in the income tax provision was approximately $18.3 million.  For the six months ended June 30, 2016, the amount of excess tax benefits recognized in additional paid-in capital was not material. In addition, because excess tax benefits are no longer recognized in additional paid-in capital under the new guidance, such amounts are no longer included in the determination of assumed proceeds in applying the treasury stock method when computing earnings per share.

8

STAMPS.COM INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

A net cumulative-effect adjustment of $2.1 million, which was an increase to retained earnings and the deferred tax asset balance as of January 1, 2017, was recorded to reflect the recognition of the previously unrecognized excess tax benefits using the modified retrospective method.

Another aspect of the new guidance requires that excess tax benefits be classified as a cash flow from operating activities, rather than a cash flow from financing activities, in the consolidated statement of cash flows. For the six months ended June 30, 2017, the amount of excess tax benefits presented as a cash flow from operating activities was $18.3 million; this amount is included within the change of other current assets, net of excess tax benefit from stock-based award activity line item in the consolidated statement of cash flows.  For the six months ended June 30, 2016, the amount of excess tax benefits presented as a cash flow from financing was not material.  The presentation requirements for cash flows related to excess tax benefits were adopted prospectively. Accordingly, the operating activity cash flows were not adjusted for the year ended December 31, 2016.

The new standard also provides an accounting policy election to account for forfeitures as they occur.  We elected to account for forfeitures as they occur, rather than estimate expected forfeitures. The impact of this was not material.

Another aspect of the new guidance clarifies that all cash payments made totax authorities on an employee’s behalf for withheld shares should be presented as a financing activity on our consolidated statements of cash flows. The presentation requirements for cash flows related to employee taxes paid for withheld shares were adopted retrospectively. The Company did not withhold shares for employee taxes in fiscal 2016; as such, there was no change to the December 31, 2016 consolidated statement of cash flows related to employee taxes. The Company accrued $0.8 million of employee taxes in the first quarter of 2017, which were classified as a financing activity on our consolidated statements of cash flows when paid in the second quarter of 2017.

The other aspects of the new guidance did not have any material effect on the Company’s consolidated financial statements.

Inventory Measurement Principle

In July 2015, the FASB issued ASU 2015-11, a new accounting standard which changed the measurement principle for inventory from the lower of cost or market to the lower of cost and net realizable value for entities that do not use the last-in, first-out (LIFO) or retail inventory method. The changes also eliminate the requirement to consider replacement cost or net realizable value less an approximately normal profit margin when measuring inventory for entities that do not use the LIFO or retail inventory method. The changes were effective for the Company in the first quarter of 2017 using a prospective transition approach. The adoption of the new guidance did not have a material effect on the Company’s consolidated financial statements.

Accounting Guidance Not Yet Adopted

Revenue Recognition

In May 2014, the FASB issued Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers (ASU 2014-09) an updated standard on revenue recognition. This ASU will supersede the revenue recognition requirements in Accounting Standards Codification Topic 605, Revenue Recognition, and most industry-specific guidance.  ASU 2014-09 provides enhancements to the quality and consistency of how revenue is reported while also improving comparability in the financial statements of companies reporting using U.S. GAAP and International Financial Reporting Standards.  The core principle of the new standard is for companies to recognize revenue to depict the transfer of goods or services to customers in amounts that reflect the consideration to which the company expects to be entitled in exchange for those goods or services. In doing so, the companies may be required to use more judgment and make more estimates than under current authoritative guidance. ASU 2014-09 will be effective for the Company in the first quarter of fiscal 2018 and may be applied on a full retrospective or modified retrospective approach. The Company is currently in the process of reviewing its material contracts to assess the impact of the new standard.  While the Company has performed a review of the impact on certain contracts, it has not completed a review of all material contracts.  As a result, the Company is currently still in the process of evaluating the adoption method and the impact the adoption of this standard will have on its consolidated financial statements.

9

STAMPS.COM INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

Leases

In February 2016, the FASB issued ASU 2016-02, a new accounting standard for leases. The new standard generally requires the recognition of financing and operating lease liabilities and corresponding right-of-use assets on the balance sheet. For financing leases, a lessee recognizes amortization of the right-of-use asset as an operating expense over the lease term separately from interest on the lease liability. For operating leases, a lessee recognizes its total lease expense as an operating expense over the lease term. The amendments are effective for the Company in the first quarter of 2019 using a modified retrospective approach with early adoption permitted. The Company is currently evaluating the impact the adoption of this standard will have on its consolidated financial statements.

Goodwill Impairment

In January 2017, the FASB issued ASU 2017-04, a standard which simplifies the accounting for goodwill impairment. The guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. Goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill.  The guidance will become effective on a prospective basis for the Company on January 1, 2020 and is not expected to have a material impact on the Company’s consolidated financial statements.

Definition of a Business

In January 2017, the FASB issued ASU 2013-12, guidance that changes the definition of a business for accounting purposes. Under the new guidance, an entity first determines whether substantially all of the fair value of a set of assets acquired is concentrated in a single identifiable asset or a group of similar identifiable assets. If this threshold is met, the set of assets is not deemed to be a business. If this threshold is not met, the entity then evaluates whether the set of assets meets the requirement to be deemed a business, which at minimum, requires there to be an input and a substantive process that together significantly contribute to the ability to create outputs. The guidance will become effective on a prospective basis for the Company on January 1, 2020 and is not expected to have a material impact on the Company’s consolidated financial statements.

Subsequent Events

We are not aware of any material subsequent events or transactions that have occurred that would require recognition in the financial statements or disclosure in the notes to the financial statements, except those described in the following paragraph.

Effective July 31, 2017, we entered an agreement with our co-president and corporate & business development officer, pursuant to which he will transition out of such position and will be available to provide services to us for the term of the agreement.  We expect to record a charge of approximately $6 million in the third quarter of 2017 in connection with the execution of this agreement.

2. Acquisitions

We have accounted for all of our acquisitions under the acquisition method of accounting in accordance with the provisions of FASB ASC Topic No. 805 Business Combinations.

ShippingEasy Acquisition

On July 1, 2016, we completed our acquisition of ShippingEasy Group, Inc. (ShippingEasy) when our wholly owned subsidiary was merged with and into ShippingEasy, resulting in our 100% ownership of ShippingEasy.  The merger agreement provided for us to pay $55.0 million in aggregate merger consideration to the former owners of ShippingEasy, payable in cash. The purchase price was subject to adjustments for changes in ShippingEasy’s net working capital.  The net purchase price including adjustments for net working capital totaled approximately $55.4 million and was funded from current cash and investment balances.

10

STAMPS.COM INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

In connection with the acquisition, we issued performance-based inducement equity awards to each of the General Manager and Chief Technology Officer of ShippingEasy. These inducement awards cover an aggregate of up to 43,567 common shares each if earnings targets for ShippingEasy are achieved over a two and one-half year period beginning July 1, 2016. The two and one-half year period is divided into three phases consisting of the six months ended December 31, 2016 and each of the twelve months ending December 31, 2017 and 2018. The awards are subject to proration if at least 75% of the applicable target is achieved and are subject to forfeiture or acceleration based on changes in employment circumstances over the performance period. We recognize stock-based compensation expense associated with the performance-based inducement equity award ratably over each phase based on the estimated probable achievement of each financial target. The awards were a material inducement to the General Manager and Chief Technology Officer entering into employment agreements with Stamps.com in connection with the acquisition of ShippingEasy. In fiscal 2016, we determined the achievement of 100% of the earnings target for the six months ended December 31, 2016 was probable, therefore, we recognized approximately $1.9 million of stock-based compensation expense, representing 21,783 shares, for these inducement equity awards during the six months ended December 31, 2016. The $1.9 million of stock-based compensation expense recognized represents 100% of the total performance-based inducement equity award for the first phase. The equity award for the first phase was issued in the first quarter of 2017 with 15,113 shares distributed and 6,670 shares withheld to satisfy income tax obligations. In the first and second quarters of 2017, we determined the achievement of 100% of the earnings target for the twelve months ended December 31, 2017 is probable, therefore, we recognized approximately $1.2 million and $2.5 million of stock-based compensation expense for these inducement equity awards during the three and six months ended June 30, 2017, respectively.  The $2.5 million of stock-based compensation expense recognized in the six months ended June 30, 2017 represents 50% of the total performance-based inducement equity award for the second phase.

We also issued inducement stock option grants for an aggregate of approximately 62,000 shares of Stamps.com common stock to 48 new employees in connection with our acquisition of ShippingEasy. Each option vests 25% on the one year anniversary of the July 1, 2016 grant date with the remaining 75% vesting in approximately equal monthly increments over the immediately succeeding thirty-six months provided that the option holder is still employed by the Company on the vesting dates. The stock options have a ten year term and an exercise price equal to the closing price of Stamps.com common stock on the grant date of July 1, 2016. The stock options were granted as inducements material to the new employees entering into employment with Stamps.com in connection with the acquisition of ShippingEasy. The related stock-based compensation expense we recognized in fiscal 2016 and for the three and six months ended June 30, 2017 was not material.

11

STAMPS.COM INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

The total net purchase price for the ShippingEasy acquisition was allocated to the assets acquired and the liabilities assumed based on their fair values. The following table is the final allocation of the purchase price (in thousands, except years):

	Fair Value			Fair Value		Useful Life (In Years)		Weighted Average Estimated Useful Life (In Years)
Trade accounts receivable	$	1,194
Other assets		76
Property and equipment		40
Goodwill		40,953
Identifiable intangible assets:
Trade name				$	1,304		8
Developed technology					6,948		5
Customer relationships					6,316		5
Non-compete agreements					1,111		3 to 5
Total identifiable intangible assets		15,679							5
Accrued expenses and other liabilities		(707	)
Deferred revenue		(185	)
Deferred tax liability		(1,603	)
Total purchase price		55,447
Less: settlement of preexisting relationship (accounts receivable)		1,194
Purchase price, net of settlement	$	54, 253

Goodwill represented the excess of the fair value of consideration given over the fair value of the tangible assets, identifiable intangible assets and liabilities assumed in the business combination and the potential acquisition related synergies.  Such synergies include leveraging Stamps.com’s resources, personnel, expertise and capital to grow ShippingEasy’s revenue faster than it otherwise would have as a standalone company. The identified intangible assets consisted of trade names, developed technology, non-compete agreements and customer relationships.  The estimated fair values of the trademark and developed technology were determined using the “relief from royalty” method.  The estimated fair value of the non-compete agreements was determined using the “with and without” method.  The estimated fair value of customer relationships was determined using the “excess earnings” method.  The rate utilized to discount net cash flows to their present values was approximately 23% and was determined after consideration of the overall enterprise rate of return and the relative risk and importance of the assets to the generation of future cash flows.  Trademark, developed technology, non-compete and customer relationships are each amortized on a straight-line basis over their estimated useful lives.  The amortization of acquired intangibles is approximately $761,000 per quarter for the remaining estimated useful lives.  The goodwill recorded in this acquisition was not deductible for tax purposes.

3. Commitments and Contingencies

Legal Proceedings

In the ordinary course of business, we are subject to various routine legal proceedings and claims incidental to our business, and we do not believe that these proceedings and claims would reasonably be expected to have a material adverse effect on our financial position, results of operations or cash flows.

Although management at present believes that the ultimate outcome of the various routine proceedings, individually and in the aggregate, will not materially harm our financial position, results of operations, cash flows, or overall trends, legal proceedings are subject to inherent uncertainties, and unfavorable rulings or other events could occur. An unfavorable outcome for an amount in excess of management’s present expectations may result in a material adverse impact on our business, results of operations, financial position, and overall trends.

12

STAMPS.COM INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

Commitments

The Company leases facilities pursuant to noncancelable operating lease agreements expiring through fiscal 2021. Rent expense is recognized on a straight-line basis over the lease term. Lease incentives are amortized over the lease term on a straight-line basis. Leasehold improvements are capitalized and amortized over the shorter of the useful life of the asset or the remaining term of the lease.  Rent expense for the three and six months ended June 30, 2017 was approximately $900,000 and $1.9 million, respectively.  Rent expense for the three and six months ended June 30, 2016 was approximately $800,000 and $1.3 million, respectively.

The following table is a schedule of our significant future contractual obligations and commercial commitments (other than debt commitments), which consist of future minimum lease payment under operating leases as of June 30, 2017 (in thousands):

Twelve Month Period Ending June 30,	Operating Lease Obligations
2018	$	3,931
2019		2,257
2020		1,386
2021		1,333
2022		232
Thereafter		—
Total	$	9,139

4. Net Income per Share

The following table reconciles share amounts utilized to calculate basic and diluted net income per share (in thousands, except per share data):

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Net income	$	31,040	$	14,291	$	64,178	$	27,529
Basic - weighted average common shares		16,930		17,384		16,916		17,370
Diluted effect of common stock equivalents		1,195		808		1,231		1,058
Diluted - weighted average common shares		18,125		18,192		18,147		18,428
Earnings per share:
Basic	$	1.83	$	0.82	$	3.79	$	1.58
Diluted	$	1.71	$	0.79	$	3.54	$	1.49

The calculation of dilutive shares excludes the effect of the following options that are considered anti-dilutive (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Anti-dilutive stock option shares		42		287		42		147

13

STAMPS.COM INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

5. Stock-Based Compensation

We account for share-based employee compensation plans under the fair value recognition and measurement provisions in accordance with applicable accounting standards, which require all share-based payments to employees, including grants of stock options and restricted stock units (RSUs), to be measured based on the grant date fair value of the awards, with the resulting expense generally recognized on a straight-line basis over the period during which the employee is required to perform service in exchange for the award.

As described in Note 1 – “Summary of Significant Accounting Policies,” we adopted ASU 2016-09, which among other items, provides an accounting policy election to account for forfeitures as they occur, rather than to account for them based on an estimate of expected forfeitures. We elected to account for forfeitures as they occur and therefore, share-based compensation expense for the three and six months ended June 30, 2017 has been calculated based on actual forfeitures in our consolidated statements of income, rather than our previous approach which was net of estimated forfeitures. The net cumulative effect of this change did not have a material impact on the consolidated financial statements. Share-based compensation expense for the year ended December 31, 2016 was recorded net of estimated forfeitures, which were based on historical forfeitures and adjusted to reflect changes in facts and circumstances, if any.

We use the Black-Scholes-Merton option valuation model to estimate the fair value of share-based payment awards on the date of grant, which requires us to use a number of complex estimates and subjective assumptions, including stock price volatility, expected term, risk-free interest rates and projected employee stock option exercise behaviors. In the case of options we grant, our assumption of expected volatility is based on the historical volatility of our stock price over the term equal to the expected life of the options. We base the risk-free interest rate on U.S. Treasury zero-coupon issues with a remaining term equal to the expected life of the options assumed at the date of grant.  The estimated expected life represents the weighted-average period the stock options are expected to remain outstanding, determined based on an analysis of historical exercise behavior.

Compensation expense for employee stock options granted is generally recognized using the straight-line method over their respective vesting periods of up to five years. Starting in the third quarter of fiscal 2016, our stock-based compensation expense included performance-based inducement equity awards relating to the ShippingEasy acquisition as described in Note 2 - “Acquisitions.” Stock-based compensation expense related to the ShippingEasy performance-based inducement equity awards is equal to the grant date fair value of the common stock and is recognized over the required performance period.  Total compensation expense related to ShippingEasy’s performance-based equity awards during the three and six months ended June 30, 2017 was approximately $1.2 million and $2.5 million, respectively.

The following table sets forth the stock-based compensation expense that we recognized for the periods indicated (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Stock-based compensation expense relating to:
Employee and director stock options	$	10,723	$	8,154	$	21,858	$	15,435
Employee stock purchases		245		263		477		498
Total stock-based compensation expense	$	10,968	$	8,417	$	22,335	$	15,933
Stock-based compensation expense relating to:
Cost of revenues	$	445	$	450	$	993	$	875
Sales and marketing		1,975		1,857		4,282		3,588
Research and development		2,221		1,425		4,717		2,780
General and administrative		6,327		4,685		12,343		8,690
Total stock-based compensation expense	$	10,968	$	8,417	$	22,335	$	15,933

14

STAMPS.COM INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

The following are the weighted average assumptions used in the Black-Scholes valuation model for the periods indicated:

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Expected dividend yield		—			—			—			—
Risk-free interest rate		1.5	%		1.0	%		1.5	%		1.0	%
Expected volatility		46.1	%		48.6	%		46.4	%		48.4	%
Expected life (in years)		3.4			3.4			3.4			3.4
Forfeiture rate		—			6.0	%		—			6.0	%

6. Goodwill and Intangible Assets

Goodwill was approximately $239.7 million as of June 30, 2017 and December 31, 2016, respectively.

We have amortizable and non-amortizable intangible assets consisting of trademarks, trade names, developed technology, non-compete agreements, customer relationships and other totaling approximately $125.4 million in gross carrying amount as of both June 30, 2017 and December 31, 2016.  Non-amortizable assets of $11.4 million as of both June 30, 2017 and December 31, 2016 consist primarily of the trade name relating to the Endicia acquisition.

The following table summarizes our amortizable intangible assets as of June 30, 2017 (in thousands):

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Patents and Others	$	8,889	$	8,797	$	92
Customer Relationships		60,816		17,185		43,631
Technology		40,048		8,699		31,349
Non-Compete		2,211		1,029		1,182
Trademark		2,004		639		1,365
Total amortizable intangible assets at June 30, 2017	$	113,968	$	36,349	$	77,619

The following table summarizes our amortizable intangible assets as of December 31, 2016 (in thousands):

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Patents and Others	$	8,889	$	8,774	$	115
Customer Relationships		60,816		12,199		48,617
Technology		40,048		6,100		33,948
Non-Compete		2,211		777		1,434
Trademark		2,004		479		1,525
Total amortizable intangible assets at December 31, 2016	$	113,968	$	28,329	$	85,639

We recorded amortization of intangible assets totaling approximately $4.0 million and $8.0 million for the three and six months ended June 30, 2017, respectively.  We recorded amortization of intangible assets totaling approximately $3.2 million and $6.6 million for the three and six months ended June 30, 2016, respectively. Amortization of intangible assets is included in general and administrative expense in the accompanying consolidated statements of income.

15

STAMPS.COM INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

As of June 30, 2017, the remaining weighted average amortization period for our amortizable intangible assets is approximately 5.1 years. Our estimated amortization expense for the next five years and thereafter is as follows (in thousands):

Twelve Month Period Ending June 30,	Estimated Amortization Expense
2018	$	16,025
2019		15,667
2020		15,579
2021		15,231
2022		7,783
Thereafter		7,334
Total	$	77,619

7. Income Taxes

Our income tax expense was $9.9 million and $10.5 million for the three and six months ended June 30, 2017, respectively, which is primarily attributable to our pre-tax book income multiplied by an estimated annual effective tax rate and discrete tax benefits relating to exercises of options.  Our income tax expense was $9.8 million and $17.9 million for the three and six months ended June 30, 2016, respectively, which is primarily attributable to our pre-tax income including our current tax expense consisting of federal alternative minimum tax and various state taxes and our deferred income tax expense consisting of temporary tax items including stock compensation and differences in the book and tax lives of amortizable intangibles. As described  in Note 1- “Summary of Significant Accounting Policies” we adopted the new accounting guidance that changes the reporting for certain aspects of share-based payments. One aspect of the guidance requires that the income tax effects of share-based awards be recognized in the income tax provision in the consolidated statements of income when the awards vest or are settled. Under the previous guidance, excess tax benefits and deficiencies were recognized in additional paid-in capital in the consolidated balance sheets when the awards vested or were settled.  For the three and six months ended June 30, 2017, the amount of excess tax benefits recognized in the income tax provision was approximately $5.7 million and $18.3 million, respectively.  For the three and six months ended June 30, 2016, respectively, the amount of excess tax benefits recognized in additional paid-in capital was not material.

Our effective income tax rate differs from the statutory income tax rate primarily as a result of permanent tax adjustments for tax benefits from stock options exercised and research and development tax credits, as well as permanent tax adjustments for nondeductible items, such as stock-based compensation and state taxes. We evaluated the appropriateness of our deferred tax assets and related valuation allowance in accordance with Income Taxes based on all available positive and negative evidence. As of June 30, 2017 and December 31, 2016, we do not have any valuation allowance against our deferred tax assets.

8. Fair Value Measurements

Financial assets measured at fair value on a recurring basis are classified in one of the three following categories, which are described below:

Level 1 - Valuations based on unadjusted quoted prices for identical assets in an active market

Level 2 - Valuations based on quoted prices in markets where trading occurs infrequently or whose values are based on quoted prices of instruments with similar attributes in active markets

Level 3 - Valuations based on inputs that are unobservable and involve management judgment and our own assumptions about market participants and pricing

16

STAMPS.COM INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

The following tables summarize our financial assets measured at fair value on a recurring basis as of June 30, 2017 and December 31, 2016, respectively (in thousands):

			Fair Value Measurement at Reporting Date Using
Description	June 30, 2017		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash and cash equivalents	$	110,343	$	110,343	$	—	$	—
Available-for-sale debt securities		—		—		—		—
Total	$	110,343	$	110,343	$	—	$	—

			Fair Value Measurement at Reporting Date Using
Description	December 31, 2016		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash and cash equivalents	$	106,932	$	106,932	$	—	$	—
Available-for-sale debt securities		1,511		—		1,511		—
Total	$	108,443	$	106,932	$	1,511	$	—

The fair value of our available-for-sale debt securities included in the Level 2 category is based on the market values obtained from an independent pricing service that were evaluated using pricing models that vary by asset class and may incorporate available trade, bid and other market information and price quotes from well-established independent pricing vendors and broker-dealers.

9. Cash, Cash Equivalents and Investments

Our cash equivalents and investments consist of money market, asset-backed securities and public corporate debt securities at June 30, 2017 and December 31, 2016. We consider all highly liquid investments with an original or remaining maturity of three months or less at the date of purchase to be cash equivalents. All of our short-term investments are classified as available for sale and are recorded at fair value using the specific identification method. Realized gains and losses are reflected in other income, net using the specific identification method. There was no material unrealized or realized gain or loss with respect to our short-term investments during the six months ended June 30, 2017. Unrealized gains and losses are included as a separate component of stockholders' equity. We do not intend to sell investments with an amortized cost basis exceeding fair value and it is not likely that we will be required to sell the investments before recovery of their amortized cost bases.

17

STAMPS.COM INC. AND SUBSIDIARIES

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

(UNAUDITED)

The following tables summarize our cash and cash equivalents and investments as of June 30, 2017 and December 31, 2016 (in thousands):

	June 30, 2017
	Cost or Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Cash and cash equivalents:
Cash	$	103,859		—		—		$	103,859
Money market		6,477		9		(2	)		6,484
Total cash and cash equivalents		110,336		9		(2	)		110,343
Short-term investments:
Corporate bonds and asset backed securities		—		—		—			—
Total short-term investments		—		—		—			—
Cash and cash equivalents and short-term investments	$	110,336		9		(2	)	$	110,343

	December 31, 2016
	Cost or Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Cash and cash equivalents:
Cash	$	101,987		—		—		$	101,987
Money market		4,945		—		—			4,945
Total cash and cash equivalents		106,932		—		—			106,932
Short-term investments:
Corporate bonds and asset backed securities		1,500		13		(2	)		1,511
Total short-term investments		1,500		13		(2	)		1,511
Cash and cash equivalents and short-term investments	$	108,432		13		(2	)	$	108,443

As of June 30, 2017, the amortized cost and estimated fair value of our marketable fixed-income securities due within one year and due after one year was immaterial.

18

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

This Quarterly Report on Form 10-Q (this “Report”) contains "forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933, as amended (the “Securities Act”), and Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”). These statements relate to expectations concerning matters that are not historical facts.   You can find many (but not all) of these statements by looking for words such as “approximates,” “believes,” “expects,” “seeks,” “anticipates,” “estimates,” “intends,” “plans,” “would,” “could,” ”should,” “will,” “may” or other similar expressions in this Report.  We claim the protection of the safe harbor contained in the Private Securities Litigation Reform Act of 1995 with respect to forward-looking statements.  We caution investors that any forward-looking statements presented in this Report, or that we may make orally or in writing from time to time, are based on beliefs and assumptions made by, and information currently available to, us at the respective times they are made.  Such statements are based on assumptions, and the actual outcome will be affected by known and unknown risks, trends and uncertainties and other factors that may be beyond our control or ability to predict. Although we believe that our assumptions are reasonable, they are not guarantees of future performance, and some will inevitably prove to be incorrect. As a result, our actual future results may differ from our expectations, and those differences may be material. We are not undertaking any obligation to update any forward-looking statements after the date of this Report. Accordingly, investors should use caution in relying on forward-looking statements, which are based on known results and trends at the time they are made, to anticipate future results or trends.

Please refer to the risk factors under “Item 1A. Risk Factors” of our Form 10-K for the year ended December 31, 2016 as well as those described elsewhere in this Report and in our other public filings.  The risks included are not exhaustive, and additional factors could adversely affect our business and financial performance.  We operate in a very competitive and rapidly changing environment. New risk factors emerge from time to time, and it is not possible for management to predict all such risk factors, nor can it assess the impact of all such risk factors on our business or the extent to which any factor, or combination of factors, may cause actual results to differ materially from those contained in any forward-looking statements. This Report and all subsequent written and oral forward-looking statements attributable to us or any person acting on our behalf are expressly qualified in their entirety by the cautionary statements contained or referred to in this section.

Our registered trademarks include Stamps.com, Endicia, ShipStation, ShipWorks, ShippingEasy, NetStamps, PhotoStamps, PictureItPostage, and the Stamps.com logo. This Report also references trademarks of other entities.  References in this Report to “we” “us” “our” or “Company” are references to Stamps.com Inc. and its subsidiaries.

Overview

Stamps.com® is a leading provider of Internet-based mailing and shipping solutions in the United States. Under the Stamps.com and Endicia® brands, customers use our USPS only solutions to mail and ship a variety of mail pieces and packages through the USPS.  Customers using our solutions receive discounted postage rates compared to USPS.com and USPS retail locations on certain mail pieces such as First Class letters and domestic and international Priority Mail® and Priority Mail Express® packages.  Stamps.com was the first ever USPS-approved PC Postage vendor to offer a software only mailing and shipping solution in 1999.  Endicia became a USPS-approved PC Postage vendor in 2000. Under the ShipStation®, ShipWorks® and ShippingEasy® brands, customers use our multi-carrier solutions to ship packages through multiple carriers such as the USPS, UPS, FedEx and others. Our customers include individuals, small businesses, home offices, medium-size businesses, large enterprises, e-commerce merchants and warehouse shippers.

19

Mailing and Shipping Business References

When we refer to our “mailing and shipping business,” we are referring to our mailing and shipping products and services including our USPS and multi-carrier mailing and shipping solutions, mailing and shipping integrations, mailing and shipping supplies stores and branded insurance offerings. We do not include our customized postage business when we refer to our mailing and shipping business. When we refer to our “mailing and shipping revenue,” we are referring to our service, product and insurance revenue generated by our mailing and shipping customers. We do not include our customized postage revenue generated by our customized postage business in our “mailing and shipping revenue.

Services and Products

Mailing and Shipping Business

We offer the following mailing and shipping products and services to our customers under the Stamps.com, Endicia, ShipStation, ShipWorks and ShippingEasy brands:

USPS Mailing and Shipping Solutions

Under the Stamps.com and Endicia brands, customers use our USPS-approved mailing and shipping solutions to mail and ship a variety of mail pieces and packages through the USPS.  Customers can purchase and print postage 24 hours a day, seven days a week, through our software or web interfaces. Typically, customers fund an account balance prior to using our service. The customers then draw down their prepaid account balance as they print postage and repurchase postage as necessary.

Our USPS mailing and shipping solutions enable users to print “electronic postage” directly onto envelopes, plain paper, or labels using only a standard personal computer, printer and Internet connection. Our solutions support a variety of USPS mail classes including First Class Mail®, Priority Mail, Priority Mail Express, Media Mail®, Parcel Select®, and others. Customers can also add to their mail pieces USPS Special Services such as USPS Tracking®, Signature Confirmation^TM, Registered Mail^TM, Certified Mail^TM, Insured Mail, Return Receipt, Collect on Delivery and Restricted Delivery. Our customers can print postage (1) on NetStamps® or DYMO Stamps® labels, which can be used just like regular stamps, (2) directly on envelopes and postcards or on labels in a single step process that saves time and provides a professional look, (3) on plain 8.5” x 11” paper or on special labels for packages, and (4) on integrated customs forms for international mail and packages.

Our mailing and shipping solutions incorporate address verification technology that verifies each destination address for mail or packages sent using our solutions against a database of all known addresses in the United States. Our mailing and shipping solutions are also integrated with common small business and productivity software applications such as word processing, contact and address management, and accounting and financial applications. Our shipping solutions feature integrations with hundreds of partners and carriers including popular shipping management products, shopping carts, online marketplaces and other e-commerce solutions.

We target different customer categories with service plans that provide various features and capabilities. We target smaller offices, home offices, and smaller online sellers that need a more basic set of mailing and shipping features. We target larger enterprises that need a richer set of mailing capabilities such as multiple-user functionality, automated Certified Mail forms, additional reference codes and higher allowable postage balances. We target shippers such as e-commerce merchants, online retailers, fulfillment houses, warehouses, and large retailers that need shipping specific features such as direct integration into the customer’s order databases, faster label printing speed and the ability to customize and save shipping profiles. We target large corporations with multiple geographic locations that need enhanced reporting and the ability for a central location, such as a corporate headquarters, to have greater visibility and control over postage expenditures across their distributed network of locations.  We target large volume mailers that need features designed for presort mail, Certified Mail, and bulk address updating.

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Customers typically pay us a monthly subscription fee which varies depending on their service plan.  In certain circumstances, customers may be on a plan where they do not owe us any monthly service fees. Under certain plans or arrangements, customers or integration partners pay a fee per transaction for shipping labels printed.  We have arrangements with the USPS under which if a customer or integration partner prints a certain amount of domestic or international First Class, Priority Mail or Priority Mail Express shipping labels, the USPS compensates us directly.  We may waive or refund our service fees for these or other customers.  In addition, we also have service plans with lower monthly subscription fees which offer more limited functionality and are targeted at retaining customers who print a lower volume of postage.  We offer service plans where customers are not charged a monthly fee but instead purchase labels for use as needed. We also offer high volume mailing products for a one time upfront fee.  We also earn compensation by offering customers a discounted postage rate that is provided to the customers by our integration partners, and we may earn other types of revenue share or other compensation from specific customers or partners.

Multi-Carrier Shipping Solutions

As a result of our acquisitions, we offer multi-carrier shipping solutions through our ShipStation, ShipWorks and ShippingEasy brands.  ShipStation, ShipWorks and ShippingEasy offer leading multi-carrier solutions for shippers including e-commerce merchants, online retailers, warehouses, fulfillment houses, large retailers and other types of shippers that use multiple carriers such as the USPS, UPS, FedEx and others.

ShippingEasy, which we acquired on July 1, 2016, offers web-based multi-carrier shipping solutions that allow online retailers and e-commerce merchants to organize, process, fulfill and ship their orders quickly and easily. ShippingEasy's solutions feature over 50 integrations with partners and carriers, including marketplaces, shopping carts and e-commerce platforms, allowing its customers to import and export fulfillment and tracking data in real time across all of their selling channels. ShippingEasy's solutions download orders from all selling channels and automatically map custom shipping preferences and rates and delivery options across all of its supported carriers. ShippingEasy's easy-to-use solutions also include complimentary access to ShippingEasy customer service shipping specialists helping merchants to streamline workflow and save on shipping costs.

ShipWorks, which we acquired on August 29, 2014, offers software-based multi-carrier shipping solutions that target e-commerce merchants, online retailers, fulfillment houses and warehouses.  ShipWorks offers simple, powerful and easy to use solutions for shippers. ShipWorks’ solutions feature over 100 integrations with partners and carriers, including marketplaces, shopping carts and e-commerce platforms. ShipWorks offers multi-carrier shipping options and features including importing orders from any marketplace or shopping cart, easily comparing shipping rates and services, sending email notifications to buyers, updating online order status, generating reports and many more.

ShipStation, which we acquired on June 10, 2014, offers web-based multi-carrier shipping solutions under the brand names ShipStation and Auctane that target e-commerce merchants, online retailers, fulfillment houses and warehouses.  ShipStation’s solutions feature over 150 integrations with partners and carriers, including marketplaces, shopping carts and e-commerce platforms. ShipStation offers multi-carrier shipping options and automation features like custom hierarchical rules and product profiles that allow customers to easily and automatically optimize their shipping. Using ShipStation, an online retailer or e-commerce merchant can ship their orders from wherever they sell and however they ship.

Mailing and Shipping Integrations

As part of our mailing and shipping services, we offer back-end integration solutions where we provide the electronic postage for transactions to partners who manage the front-end users. Our solutions integrate directly into the most popular e-commerce platforms, allowing web store managers to completely automate their order fulfillment process by processing, managing, and shipping orders from virtually any e-commerce source through a single interface without manual data entry. Managers can retrieve order data and print complete shipping labels for all types of packages.

We had an integration partnership with Amazon.com that made our domestic and international shipping labels for certain USPS package classes available to Amazon.com Marketplace users, which ended in July 2017. The integration allowed Marketplace users to automatically pay for postage using their Marketplace Payments account, set a default ship-from address so they would not have to type or write it for each shipment, and automatically populate the ship-to address on the label. Domestic and international mail classes were supported and Marketplace users could request carrier pickup from the USPS. A transaction fee per shipping label printed was charged to Marketplace users who were not Stamps.com subscription customers. We do not believe the termination of our integration partnership with Amazon will have any material effect on our results.

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We have an integration partnership with the USPS where we provide electronic postage for shipping transactions generated by Click-N-Ship Business Pro^TM and Click-N-Ship®, a web-based service available at USPS.com that allows USPS customers to purchase and print shipping labels for domestic and international Priority Mail and Priority Mail Express packages at no additional mark-up over the cost of postage.

In addition, ShipStation, ShipWorks and ShippingEasy have hundreds of integrations with partners and carriers, including marketplaces, shopping carts and e-commerce platforms as part of their multi-carrier shipping solutions.  Integrations with partners include Amazon, eBay, PayPal, Shopify, Bigcommerce, Magento, Volusion, ChannelAdvisor, Yahoo! Stores and many others.  Carrier integrations include USPS, FedEx, UPS, DHL, Canada Post, UPS Canada, FedEx Canada and many others.

Mailing & Shipping Supplies Stores

Stamps.com and Endicia’s mailing & shipping supplies stores (our “Supplies Stores”) are available to our customers from within our mailing and shipping solutions and sell NetStamps labels, DYMO Stamp labels, shipping labels, other mailing labels, dedicated postage printers, scales, and other mailing and shipping-focused office supplies. Our Supplies Stores feature store catalogs, messaging regarding free or discounted shipping promotions, cross-selling product recommendations during the checkout process, product search capabilities and same-day shipping of orders with expedited shipping options.  Our multi-carrier solutions do not have mailing and shipping supplies stores as part of their solutions.

Branded Insurance

We offer branded insurance for USPS packages to our customers so that they may insure their mail or packages in a fully integrated, online process that eliminates any trips to the post office or the need to complete any special forms. Our branded insurance is offered by all our brands including Stamps.com, Endicia, ShipStation, ShipWorks and ShippingEasy as part of their USPS and multi-carrier solutions. Our branded insurance is provided by our insurance providers.

International

We offer International postage solutions through our subsidiaries to certain international posts including the French Post and Canadian Post.

Customized Postage

We offer customized postage under the PhotoStamps® and PictureItPostage® brand names.  Customized postage is a patented form of postage that allows consumers to turn digital photos, designs or images into valid USPS-approved postage. With these products, individuals or businesses can create customized USPS-approved postage using pictures of their children, pets, vacations, celebrations, business logos and more. Customized postage can be used as regular postage to send letters, postcards or packages. PhotoStamps and PictureItPostage are available from our separately marketed websites at www.photostamps.com and www.pictureitpostage.com, respectively.

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Acquisitions

ShippingEasy

On June 16, 2016, we entered into a definitive agreement to acquire ShippingEasy for approximately $55.0 million. ShippingEasy, an Austin, Texas based company, offers web-based multi-carrier shipping solutions.  On July 1, 2016, we completed our acquisition of ShippingEasy. The purchase price was subject to adjustments for changes in ShippingEasy’s net working capital.  The net purchase price including adjustments for net working capital totaled approximately $55.4 million and was funded from current cash and investment balances.

In connection with the acquisition, we issued performance-based inducement equity awards to the General Manager and Chief Technology Officer of ShippingEasy. These inducement awards cover an aggregate of up to 43,567 common shares each to the General Manager and Chief Technology Officer if earnings targets for ShippingEasy are achieved over a two and one-half year period beginning July 1, 2016. The awards are subject to proration if at least 75% of the applicable target is achieved and are subject to forfeiture or acceleration based on changes in employment circumstances over the performance period. The awards were a material inducement to the General Manager and Chief Technology Officer entering into employment agreements with Stamps.com in connection with the acquisition.

In fiscal 2016, we determined the achievement of 100% of the earnings target for the six months ended December 31, 2016 was probable, therefore, we recognized approximately $1.9 million of stock-based compensation expense, representing 21,783 shares, for these inducement equity awards during the six months ended December 31, 2016. The $1.9 million of stock-based compensation expense recognized represents 100% of the total performance-based inducement equity award for the first phase. The equity award for the first phase was issued in the first quarter of 2017 with 15,113 shares distributed and 6,670 shares withheld to satisfy income tax obligations.

We also issued inducement stock option grants for an aggregate of 62,000 shares of Stamps.com common stock to 48 new employees in connection with our acquisition of ShippingEasy. The stock options were granted as inducements material to the new employees entering into employment with Stamps.com.

Please see Note 2 – “Acquisitions” in our Notes to Consolidated Financial Statements for further description.

Results of Operations

The results of our operations during the three and six months ended June 30, 2017 include the operations of ShippingEasy. The results of our operations during the three and six months ended June 30, 2016 do not include the operations of ShippingEasy. Please see Note 2 – “Acquisitions” in our Notes to Consolidated Financial Statements for further description. Accordingly, care should be used in comparing periods that include the operations of ShippingEasy with those that do not include such operations.

Three and Six Months Ended June 30, 2017 and 2016

Total revenue increased 38% to $116.1 million in the three months ended June 30, 2017 from $84.0 million in the three months ended June 30, 2016. Total revenue increased 33% to $221.2 million in the six months ended June 30, 2017 from $165.9 million in the six months ended June 30, 2016. Mailing and shipping revenue, which includes service revenue, product revenue and insurance revenue, was $111.8 million in the three months ended June 30, 2017, an increase of 37% from $81.5 million in the three months ended June 30, 2016 and was $214.4 million in the six months ended June 30, 2017, an increase of 33% from $160.7 million in the six months ended June 30, 2016. Customized Postage revenue increased 73% to $4.3 million in the three months ended June 30, 2017 from $2.5 million in the three months ended June 30, 2016 and was $6.7 million in the six months ended June 30, 2017, an increase of 32% from $5.1 million in the six months ended June 30, 2016.

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The following table sets forth the breakdown of revenue for the three and six months ended June 30, 2017 and 2016 and the resulting percentage change (revenue in thousands):

	Three months ended June 30,							Six months ended June 30,
	2017		2016		% Change			2017		2016		% Change
Revenues
Service	$	102,685	$	72,590		41.5	%	$	195,105	$	141,696		37.7	%
Product		4,763		4,851		(1.8	)%		10,477		10,406		0.7	%
Insurance		4,393		4,082		7.6	%		8,833		8,593		2.8	%
Mailing and shipping revenue	$	111,841	$	81,523		37.2	%	$	214,415	$	160,695		33.4	%
Customized postage	$	4,276	$	2,467		73.3	%	$	6,718	$	5,104		31.6	%
Other		23		23		0.0	%		47		51		(7.8	)%
Total revenues	$	116,140	$	84,013		38.2	%	$	221,180	$	165,850		33.4	%

We define “paid customers” for the quarter as ones from whom we successfully collected service fees or otherwise earned revenue at least once during that quarter, and we define average revenue per paid customer (ARPU) as mailing and shipping revenue divided by paid customers.  We define lost paid customers (Lost Paid Customers) as customers from whom we successfully collected service fees or otherwise earned revenue at least once during the previous quarter but not during the current quarter, less recaptured paid customers. We define monthly paid customer cancellation rate (Monthly Churn) as a fraction, the numerator of which is the quotient of Lost Paid Customers in a quarter divided by the sum of paid customers in the prior quarter and new paid customers in the current quarter, and the denominator of which is 3 months.

The following table sets forth the number of paid customers in the period for our mailing and shipping business (in thousands):

Year	First Quarter	Second Quarter
2017	722	738
2016	649	646

The following table sets forth the growth in paid customers and average monthly revenue per paid customer for our mailing and shipping business (in thousands except average quarterly revenue per paid customer and percentage):

	Three months ended June 30,
	2017		2016		% Change
Paid customers for the quarter		738		646		14.2	%
Average monthly revenue per paid customer	$	50.51	$	42.06		20.1	%
Mailing and shipping revenue	$	111,841	$	81,523		37.2	%

The increase in paid customers is primarily the result of (1) a reduction in our average Monthly Churn rate from 3.2% in the second quarter 2016 to 2.8% in the second quarter 2017 and (2) the increase in paid customers acquired as a result of increased sales and marketing spend and better performance in our marketing programs. The acquisition of ShippingEasy did not result in any incremental paid customers in our metrics as ShippingEasy had a pre-existing partnership with Endicia at the time of their acquisition in which Endicia earned revenue through a revenue sharing arrangement for ShippingEasy’s customers and as a result, ShippingEasy’s customers were already included in our paid customers prior to the acquisition.

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The increase in our average quarterly revenue per paid customer was primarily the result of (1) the growth in our shipping business where we have the ability to better monetize postage volume as compared to monthly flat rate subscription fees, and (2) recognizing all of the revenue on ShippingEasy’s customers where we, prior to the acquisition, recognized only a portion of that revenue under ShippingEasy’s revenue sharing partnership with Endicia.

Revenue by Product

The following table shows our components of revenue and their respective percentages of total revenue for the periods indicated (in thousands except percentage):

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Revenues
Service	$	102,685		$	72,590		$	195,105		$	141,696
Product		4,763			4,851			10,477			10,406
Insurance		4,393			4,082			8,833			8,593
Customized postage		4,276			2,467			6,718			5,104
Other		23			23			47			51
Total revenues	$	116,140		$	84,013		$	221,180		$	165,850
Revenue as a  percentage of total revenues
Service		88.4	%		86.4	%		88.2	%		85.4	%
Product		4.1	%		5.8	%		4.8	%		6.3	%
Insurance		3.8	%		4.9	%		4.0	%		5.2	%
Customized postage		3.7	%		2.9	%		3.0	%		3.1	%
Other		0	%		0	%		0	%		0	%
Total revenue		100	%		100	%		100	%		100	%

Our revenue is derived primarily from five sources: (1) service and transaction related revenues from our USPS mailing and shipping services, our multi-carrier shipping services and our mailing and shipping integrations; (2) product revenue from the direct sale of consumables and supplies through our Supplies Stores; (3) package insurance revenue from our branded insurance offerings; (4) customized postage revenue from the sale of PhotoStamps and PictureItPostage postage labels; and (5) other revenue, consisting of advertising revenue derived from advertising programs with our existing customers.

We earn service revenue in several different ways: (1) customers may pay us a monthly fee based on a subscription plan which may be waived or refunded for certain customers; (2) we may be compensated directly by the USPS for certain qualifying customers under our USPS partnership; (3) we may earn transaction related revenue based on customers purchasing postage or printing shipping labels; (4) we may earn compensation by offering customers a discounted postage rate that is provided to the customers by our integration partners; and (5) we may earn other types of revenue shares or other compensation from specific customers or integration partners.

Service revenue increased 41% to $102.7 million in the three months ended June 30, 2017 from $72.6 million in the three months ended June 30, 2016 and increased 38% to $195.1 million in the six months ended June 30, 2017 from $141.7 million in the six months ended June 30, 2016. The increase in service revenue during the three months ended June 30, 2017 consisted of a 14% increase in our average paid customers and a 24% increase in our average service revenue per paid customer.  The increase in paid customers was attributable to the factors described in the previous section. The increase in our average service revenue per paid customer was attributable to the factors that resulted in an increase in the average total mailing and shipping revenue per paid customer described in the previous section as service revenue accounted for a majority of the total mailing and shipping revenue and to the renewal of two of our agreements with the USPS with improved economics.

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Product revenue decreased 2% to $4.8 million in the three months ended June 30, 2017 from $4.9 million in the three months ended June 30, 2016 and increased 1% to $10.5 million in the six months ended June 30, 2017 from $10.4 million in the six months ended June 30, 2016. Product revenue is primarily driven by labels, such as NetStamps and DYMO Stamps, which are used for mailing.  As our growth in postage has been driven more by shipping than mailing over the recent years, our year-to-date growth in product revenue has been lower than our growth in total revenue.

Insurance revenue increased 8% to $4.4 million in the three months ended June 30, 2017 from $4.1 million in the three months ended June 30, 2016 and increased 3% to $8.8 million in the six months ended June 30, 2017 from $8.6 million in the six months ended June 30, 2016.  The growth in insurance revenue is less than the growth in service revenue primarily due to the increase in high volume shipper customers.  High volume shipper customers often self-insure, so while the high volume shipping business results in higher service fee revenue, it may not result in higher insurance revenue.

Customized postage revenue increased 73% to $4.3 million in the three months ended June 30, 2017 from $2.5 million in the three months ended June 30, 2016 and increased 32% to $6.7 million in the six months ended June 30, 2017 from $5.1 million in the six months ended June 30, 2016.  The increase was primarily attributable to a $1.7 million high volume customer order which occurred in the three months ended June 30, 2017. High volume order sales are unpredictable and vary from quarter to quarter.

Cost of Revenue

The following table shows cost of revenues and cost of revenues as a percentage of associated revenue for the periods indicated (in thousands except percentage):

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Cost of revenues
Service	$	12,726		$	8,857		$	25,402		$	18,151
Product		1,593			1,642			3,395			3,440
Insurance		1,213			1,266			2,581			2,629
Customized postage		3,557			1,955			5,449			4,122
Total cost of revenues	$	19,089		$	13,720		$	36,827		$	28,342
Cost as percentage of associated revenue
Service		12.4	%		12.2	%		13.0	%		12.8	%
Product		33.4	%		33.8	%		32.4	%		33.1	%
Insurance		27.6	%		31.0	%		29.2	%		30.6	%
Customized postage		83.2	%		79.2	%		81.1	%		80.8	%
Total cost as a percentage of total revenues		16.4	%		16.3	%		16.7	%		17.1	%

Cost of service revenue principally consists of the cost of customer service, certain promotional expenses, system operating costs, credit card processing fees and customer misprints that do not qualify for reimbursement from the USPS.  Cost of product revenue principally consists of the cost of products sold through our Supplies Stores and the related costs of shipping and handling.  The cost of insurance revenue principally consists of parcel insurance offering costs through our third party insurance providers.  Cost of customized postage revenue principally consists of the face value of postage, customer service, image review costs, and printing and fulfillment costs.

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Cost of service revenue increased 44% to $12.7 million in the three months ended June 30, 2017 from $8.9 million in the three months ended June 30, 2016 and increased 40% to $25.4 million in the six months ended June 30, 2017 from $18.2 million in the six months ended June 30, 2016.  The increase during the three months ended June 30, 2017 was primarily attributable to (1) higher credit card processing fees, which increased by $2.0 million, directly related to our higher revenue; (2) higher customer service costs, which increased by $689,000, to support our growing customer base; and (3) higher system operating costs, which increased by $501,000, to support our growing business.  The increase during the six months ended June 30, 2017 was primarily attributable to (1) higher credit card processing fees, which increased by $3.8 million, directly related to our higher revenue; (2) higher customer service costs, which increased by $1.6 million, to support our growing customer base; and (3) higher system operating costs, which increased by $927,000, to support our growing business. Promotional expenses, which represent a material portion of total cost of service revenue, are expensed in the period in which a customer qualifies for the promotion while the revenue associated with the acquired customer is earned over the customer’s lifetime.  As a result, promotional expense for newly acquired customers may exceed the revenue earned from those customers in that period.  Promotional expense increased 47% to $671,000 in the three months ended June 30, 2017 from $455,000 in the three months ended June 30, 2016 and increased 20% to $1.5 million in the six months ended June 30, 2017 from $1.3 million in the six months ended June 30, 2016.

Cost of service revenue as a percent of service revenue was 12% in the three months ended June 30, 2017 which was consistent with the three months ended June 30, 2016.   Cost of service revenue as a percent of service revenue was 13% in the six months ended June 30, 2017 which was consistent with the six months ended June 30, 2016.

Cost of product revenue in the three and six months ended June 30, 2017 was consistent with the cost of product revenue in three and six months ended June 30, 2016, respectively.  Cost of product revenue as a percent of product revenue was 33% in the three months ended June 30, 2017 and 34% in the three months ended June 30, 2016. Cost of product revenue as a percent of product revenue was 32% in the six months ended June 30, 2017 and 33% in the six months ended June 30, 2016.

Cost of insurance revenue in the three and six months ended June 30, 2017 was consistent with the cost of insurance revenue in three and six months ended June 30, 2016, respectively. Cost of insurance revenue as a percent of insurance revenue was 28% in the three months ended June 30, 2017 and 31% in the three months ended June 30, 2016. Cost of insurance revenue as a percent of insurance revenue was 29% in the six months ended June 30, 2017 and 31% in the six months ended June 30, 2016.

Cost of customized postage revenue increased 82% to $3.6 million in the three months ended June 30, 2017 from $2.0 million in the three months ended June 30, 2016 and increased 32% to $5.4 million in the six months ended June 30, 2017 from $4.1 million in the six months ended June 30, 2016. The increase in cost of customized postage revenue during the three and six months ended June 30, 2017 is primarily due to the increase in our customized postage revenue. Cost of customized postage revenue as a percent of customized postage revenue increased from 79% in the three months ended June 30, 2016 to 83% in the three months ended June 30, 2017. The increase, both on an absolute and as a percentage of customized revenue, was primarily the result of the increase in high volume order which has a lower profit margin compared to website sales.  Cost of customized postage revenue as a percent of customized postage revenue was 81% in both the six months ended June 30, 2016 and the six months ended June 30, 2017.

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Operating Expenses

The following table outlines the components of our operating expense and their respective percentages of total revenues for the periods indicated (in thousands except percentage):

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Operating expenses:
Sales and marketing	$	22,280		$	20,082		$	45,430		$	41,479
Research and development		11,628			8,131			22,150			16,468
General and administrative		21,451			17,113			40,433			32,375
Total operating expenses	$	55,359		$	45,326		$	108,013		$	90,322
Operating expenses as a percent of total revenues:
Sales and marketing		19.2	%		23.9	%		20.5	%		25.0	%
Research and development		10.0	%		9.7	%		10.0	%		9.9	%
General and administrative		18.5	%		20.4	%		18.3	%		19.5	%
Total operating expenses as a percentage of total revenues		47.7	%		54.0	%		48.8	%		54.5	%

Sales and Marketing

Sales and marketing expense principally consists of spending to acquire new customers and compensation and related expenses for personnel engaged in sales, marketing and business development activities. Our sales and marketing programs include direct sales, customer referral programs, customer re-marketing efforts, direct mail, online advertising, partnerships, telemarketing and traditional advertising.

Sales and marketing expense increased 11% to $22.3 million in the three months ended June 30, 2017 from $20.1 million in the three months ended June 30, 2016 and increased 10% to $45.4 million in the six months ended June 30, 2017 from $41.5 million in the six months ended June 30, 2016.  The increase during the three months ended June 30, 2017 was primarily attributable to an increase in discretionary marketing spending of $1.8 million and an increase in headcount related expenses of $0.2 million.  The increase during the six months ended June 30, 2017 was primarily attributable to an increase in discretionary marketing spending of $3.1 million and an increase in stock-based compensation of $0.7 million. The increase in stock-based compensation expense was due to the issuance of stock options to additional employees as part of the ShippingEasy acquisition, as well as the increased number of employees in the rest of the Company.  Please see Note 2 – “Acquisitions” in our Notes to Consolidated Financial Statements for further description of the ShippingEasy acquisition.

Sales and marketing expense as a percent of total revenue was 19% in the three months ended June 30, 2017 which was down compared to 24% in the three months ended June 30, 2016. Sales and marketing expense as a percent of total revenue was 21% in the six months ended June 30, 2017 which was down compared to 25% in the six months ended June 30, 2016.  The decline during both the three and six months ended June 30, 2017 was primarily attributable to our ability to leverage our sales and marketing spend which is expensed as incurred relative to the year-over-year growth in our average monthly revenue per paid customer.

Research and Development

Research and development expense principally consists of compensation for personnel involved in the development of our services, depreciation of equipment and software and expenditures for consulting services and third party software.

Research and development expense increased 43% to $11.6 million in the three months ended June 30, 2017 from $8.1 million in the three months ended June 30, 2016 and increased 35% to $22.2 million in the six months ended June 30, 2017 from $16.5 million in the six months ended June 30, 2016. The increase during the three months ended June 30, 2017 was primarily attributable to (1) an increase in headcount related expense of $2.0 million; (2) an increase in stock-based compensation expense of $0.8 million; and (3) an increase in facilities expense of $0.3 million. The increase during the six months ended June 30, 2017 was primarily due to (1) an increase in headcount related expenses of $2.7 million; (2) an increase in stock-based compensation expense of $1.9 million; and (3) an increase in facilities expense of $0.6 million. The increases in headcount-related and stock-based compensation expenses were due to increased headcount resulting from the ShippingEasy acquisition as well as increased headcount in the rest of the Company to support our expanded product offerings and technology infrastructure investments. The increase in facilities expense was due to the ShippingEasy acquisition.

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Research and development expense as a percent of total revenue during the three and six months ended June 30, 2017 and 2016 was 10%.

General and Administrative

General and administrative expense principally consists of compensation and related costs for executive and administrative personnel, fees for legal and other professional services, depreciation of equipment, software and building used for general corporate purposes and amortization of intangible assets.

General and administrative expense increased 25% to $21.5 million in the three months ended June 30, 2017 from $17.1 million in the three months ended June 30, 2016 and increased 25% to $40.4 million in the six months ended June 30, 2017 from $32.4 million in the six months ended June 30, 2016. The increase during the three months ended June 30, 2017 was primarily attributable to (1) an increase in headcount related expense of $2.4 million; (2) an increase in stock-based compensation expense of $1.6 million; and (3) an increase in intangible assets amortization expense of $0.8 million; partially offset by (4) a decrease in legal expense of $0.6 million.  The increase during the six months ended June 30, 2017 was primarily attributable to (1) an increase in headcount related expense of $3.4 million; (2) an increase in stock-based compensation expense of $3.7 million; and (3) an increase in intangible assets amortization expense of $1.4 million; partially offset by (4) a decrease in legal fee expense of $0.5 million. The increases in headcount-related and stock-based compensation expenses were due to both the addition of headcount resulting from our ShippingEasy acquisition as well as increased headcount at the rest of the Company to support our growth in the business and corporate infrastructure investments. The increase in intangible amortization expense was due to our ShippingEasy acquisition.  Legal fee expense was higher during the three and six months ended June 30, 2016 compared to the same periods in 2017 due to acquisition related costs.  We did not have any acquisition related costs in 2017.

General and administrative expense as a percent of total revenue was 19% in the three months ended June 30, 2017 and was 20% in the three months ended June 30, 2016. General and administrative expense as a percent of total revenue declined to 18% in the six months ended June 30, 2017 from 20% in the six months ended June 30, 2016.

Interest and Other Income

Interest and other income primarily consists of interest income from cash, cash equivalents and short-term and long-term investments. Interest and other income was $159,000 and $31,000 in the three months ended June 30, 2017 and 2016, respectively. Interest and other income was $189,000 and $74,000 in the six months ended June 30, 2017 and 2016, respectively.

Interest Expense

Interest expense consists of interest expense from the debt under our credit facility and the associated accretion of debt issuance costs. Interest expense was $932,000 in the three months ended June 30, 2017 compared to $905,000 in the three months ended June 30, 2016. The increase in interest expense is primarily attributable to higher interest rates in the second quarter of 2017 compared to the second quarter of 2016, partially offset by lower outstanding debt balances under our credit facility. Interest expense was $1.8 million in both the six months ended June 30, 2017 and 2016.

Provision for Income Taxes

For the three and six months ended June 30, 2017, our income tax expense was $9.9 million and $10.5 million, respectively.  Our tax expense was primarily attributable to our pre-tax book income multiplied by an estimated annual effective tax rate and discrete tax benefits relating to exercises of options. In the first quarter of 2017, as a result of our adoption of ASU 2016-09 we recognized the full impact of the excess tax benefit associated with stock option exercises during the period, which decreased our effective tax rate for the quarter resulting in lower tax expense compared to prior year.  Please see Note 1 – “Summary of Significant Accounting Policies” and Note 5 – “Stock Based Compensation” in our Notes to Consolidated Financial Statements for further description of the impact of this accounting standard.

29

Our income tax expense was $9.8 million and $17.9 million for the three and six months ended June 30, 2016, respectively.  Our tax expense was primarily attributable to our pre-tax income including our current tax expense consisting of federal alternative minimum tax and various state taxes and our deferred income tax expense consisting of temporary tax items including stock compensation and differences in the book and tax lives of amortizable intangibles. Our effective tax rate differs from the statutory federal rate as a result of several factors including non-temporary differences from excess tax benefits from the exercise of stock options, as well as state income taxes and research and development tax credits.

We evaluated the appropriateness of our deferred tax assets and related valuation allowance in accordance with ASC 740 based on all available positive and negative evidence.  As of June 30, 2017 and December 31, 2016, we do not have any valuation allowance against our gross deferred tax assets.

Liquidity and Capital Resources

As of June 30, 2017 and December 31, 2016, we had $110 million and $108 million, respectively, in cash, cash equivalents and short-term and long-term investments. We invest available funds in short-term and long-term securities, including money market funds, corporate bonds, asset backed securities, and US government and agency bonds, and do not engage in hedging or speculative activities.

Net cash provided by operating activities was approximately $78.5 million and $81.8 million during the six months ended June 30, 2017 and 2016, respectively. The decrease in net cash provided by operating activities was primarily attributable to the (1) increase in payments of payables of $14.6 million; (2) decrease in accounts receivable collections of $12.1 million; (3) decrease in the deferred income tax balance of $10.2 million; (4) increase in other current assets of $7.9 million primarily due to prepaid income taxes; (5) increase in other assets of $2.4 million; and the (6) decrease in deferred revenue of $1.4 million; partially offset by the (7) net income increase of $36.6 million; (8) stock compensation expense increase of $6.4 million; and the (9) depreciation and amortization increase of $1.8 million.

Net cash used in investing activities was approximately $2.9 million during the six months ended June 30, 2017.  Net cash provided by investing activities was approximately $2.4 million during the six months ended June 30, 2016. The decrease in net cash provided by investing activities was primarily due to (1) increased capital expenditures related to the build out of the Stamps.com headquarters of $3.7 million, and (2) decreased cash from short-term investment sales by $2.1 million; offset by, (3) the prior period Endicia acquisition adjustment, which decreased cash by $0.6 million.

Net cash used in financing activities was approximately $72.2 million and $33.1 million during the six months ended June 30, 2017 and 2016, respectively.  The increase in net cash used in financing activities was primarily due to the (1) $57.9 million increase in stock repurchases; (2) $1.0 increase in term-loan principal payments; (3) $1.0 increase in short-term financing payments; and the (4) $0.8 million of payments of statutory income tax withholding obligations that were funded by shares withheld; partially offset by the (5) $21.6 million increase in proceeds from stock option exercises.

The following table is a schedule of our significant contractual obligations and commercial commitments as of June 30, 2017 (in thousands):

Twelve Month Period Ending June 30,	Operating Lease Obligations
2018	$	3,931
2019		2,257
2020		1,386
2021		1,333
2022		232
Thereafter		—
Total	$	9,139

30

On November 18, 2015, we entered into a credit agreement with a group of banks, which provides for a term loan of $82.5 million and a revolving credit facility with a maximum borrowing of $82.5 million (the “Credit Agreement”). Our Credit Agreement matures on November 18, 2020. In connection with entering into the Credit Agreement, we incurred approximately $1.8 million in debt issuance costs which were recorded as debt discount and are being accreted as interest expense over the life of the Credit Agreement. Interest expense associated with the debt issuance costs for the three and six months ended June 30, 2017 was approximately $93,000 and $186,000, respectively.

Borrowings under the term loan are payable in quarterly installments which began on December 31, 2015. We pay interest on our Credit Agreement equal to the London Interbank Offered Rate plus an applicable margin, between 1.25% and 2.00%, based upon certain financial measures. As of June 30, 2017, our applicable margin was 1.25% and the interest rate on our outstanding loan was approximately 2.52%.  We are subject to certain customary quarterly financial covenants under our Credit Agreement such as a maximum total leverage ratio and a minimum fixed charge coverage ratio. As of June 30, 2017, we were in compliance with the covenants of the Credit Agreement.

The Credit Agreement includes negative covenants, subject to exceptions, restricting or limiting our ability to among other things, incur additional indebtedness, grant liens, repurchase stock, pay dividends and engage in certain investment, acquisition and disposition transactions. The Credit Agreement imposes certain requirements in order for us to make dividend payments.  As of June 30, 2017, such requirements were: (1) our Consolidated Total Leverage Ratio, as defined in the Credit Agreement, must be less than 2.75 to 1.00; (2) our Fixed Charge Coverage Ratio, as defined in the Credit Agreement, must be greater than 1.25 to 1.00; and (3) our Liquidity as defined in the Credit Agreement must be greater than $20 million.  As of June 30, 2017, our Consolidated Total Leverage Ratio was 0.6 to 1.00, our Fixed Charge Coverage Ratio was 20.7 to 1.00 and our Liquidity was approximately $131 million, which includes cash and cash equivalent and investment balances, as well as the available balance under the revolving credit facility. Based on our actual financial condition and results of operations, we do not believe that the provisions of the Credit Agreement currently represent a restriction to our ability to pay dividends in permissible amounts.

The contractual maturities of our debt obligations due subsequent to June 30, 2017 are as follows (in thousands):

Year ending June 30,	Amount
2018	$	7,734
2019		9,797
2020		11,859
2021		106,334
Thereafter		—
Total debt		135,724
Less: debt issuance costs		1,277
Total debt, net of debt issuance costs	$	134,447

31

The estimated interest payments related to our debt due subsequent to June 30, 2017 are as follows (in thousands):

Year ending June 30,	Amount
2018	$	3,419
2019		3,206
2020		2,948
2021		1,270
Thereafter		—
Total	$	10,843

The above estimated interest payments assume an interest rate of 2.52%, which is our interest rate as of June 30, 2017, and assume the entire remaining amount of our revolving credit facility is paid on the maturity date of November 18, 2020.

We believe our available cash and marketable securities, together with the cash flow from operations, will be sufficient to fund our business for at least the next twelve months.

32

Business Outlook and Forward-Looking Statements

The following forward-looking statements are accompanied by, and should only be read in conjunction with, the qualifications and limitations described in the forward-looking statements discussion at the beginning of this Item 2 and the risks and other factors set forth in Item 1A “Risk Factors” of our Annual Report on Form 10-K for the year ended December 31, 2016 filed with SEC on March 1, 2017.

We expect our mailing and shipping revenue to increase in 2017 compared to 2016.  We expect our mailing and shipping revenue growth in 2017 to be less than the growth we achieved in 2016 now that we have passed the one year anniversary of our Endicia acquisition. Our ability to grow our mailing and shipping revenue is partly dependent on our ability to increase our sales and marketing spend to acquire new customers and to retain our existing customers. To the extent we are not able to achieve our target increase in spending and acquire or retain customers, this would negatively impact our 2017 mailing and shipping revenue growth expectations.

We expect customized postage revenue to be down in 2017 compared to 2016. High volume business orders for customized postage can fluctuate significantly from quarter to quarter and therefore historical trends may not be indicative of future results for customized postage revenue.

We expect our sales and marketing expense to increase in 2017 compared to 2016.  We expect the percent increase in sales and marketing expense in 2017 to be less than the percent increase in 2016, as 2016 reflected a full year of Endicia results, as opposed to approximately one and a half months in 2015. We will continue to monitor our customer metrics and the state of the economy and adjust our level of spending accordingly. Sales and marketing spend is expensed in the period incurred, while the revenue and profits associated with the acquired customers are earned over the customers’ lifetimes. As a result, increased sales and marketing spend in future periods could result in a reduction in operating profit and cash flow compared to past periods.

We expect research and development expenses to be higher in 2017 as compared to 2016.  We expect the percent increase in research and development expense in 2017 to be less than the percent increase in 2016, as 2016 reflected a full year of Endicia results, as opposed to approximately one and a half months in 2015. We expect to hire additional research and development personnel in 2017.

We expect general and administrative expenses to be higher in 2017 as compared to 2016. We expect the percent increase in general and administrative expense in 2017 to be less than the percent increase in 2016, as 2016 reflected a full year of Endicia results, as opposed to approximately one and a half months in 2015.

We expect our effective tax rate for 2017 to be lower than 2016 as we benefitted from excess tax benefits related to the exercise of stock options in the first quarter of 2017. However, there are other factors that impact taxable income compared to book income which can be difficult to predict and can change from quarter-to-quarter.

We expect we will utilize the majority of our remaining federal net operating losses and other tax credits during 2017 and thus we expect to pay taxes in 2017 in excess of the alternative minimum taxes we have paid in prior years.

As discussed earlier in this Report, our expectations are subject to substantial uncertainty and our results are subject to macro-economic factors and other factors which could cause these trends to be worse than our current expectation or which could cause actual results to be materially different than our current expectations. Our business has grown through acquisitions during 2014 through 2016; however the expectations above do not assume any future acquisitions or dispositions, any of which could have a significant impact on our current expectations.  As described in our forward-looking statements discussion, we do not undertake any obligation to release publicly any revisions to our forward-looking statements to reflect events or circumstances after the date of this Report.

Critical Accounting Policies and Judgments

Management’s discussion and analysis of our financial condition and results of operations is based on our unaudited financial statements. The preparation of these financial statements is based on the selection of accounting policies and the application of significant accounting estimates, some of which require management to make judgments, estimates and assumptions that affect the amounts reported in the financial statements and notes. Except as noted below, for more information regarding our critical accounting estimates and policies, see Part II, Item 7, “Management’s Discussion and Analysis of Financial Condition and Results of Operations—Critical Accounting Policies and Judgments” of our Annual Report on Form 10-K for the year ended December 31, 2016, filed with the SEC on March 1, 2017.

33

ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK

On November 18, 2015, we entered into a Credit Agreement with a group of banks, which provides for a term loan of $82.5 million and a revolving credit facility with a maximum borrowing of $82.5 million. Our Credit Agreement matures on November 18, 2020. As of June 30, 2017, the debt outstanding under our Credit Agreement, gross of debt issuance costs, was $135.7 million.  Borrowings under the term loan are payable in quarterly installments which began on December 31, 2015. We pay interest on our Credit Agreement at a rate equal to the London Interbank Offered Rate plus an applicable margin, which is between 1.25% and 2.00%, based upon certain financial measures. As of June 30, 2017, our applicable margin was 1.25% and the interest rate on our outstanding loan was approximately 2.52%. Interest expense would not be significantly affected by either a 10% increase or decrease in the rates of interest on our debt.

We have not used derivative financial instruments in our investment portfolio.  None of the instruments in our investment portfolio are held for trading purposes. Our cash equivalents and investments consist of money market, U.S. government obligations, asset-backed securities and public corporate debt securities with weighted average maturities of 34 days at June 30, 2017. Our cash equivalents and investments approximated $110.3 million at June 30, 2017 and had a weighted average interest rate of 0.8%. Interest rate fluctuations impact the carrying value of the portfolio. The fair value of our portfolio of marketable securities would not be significantly affected by either a 10% increase or decrease in the rates of interest due primarily to the short-term nature of the portfolio.  We do not believe that the future market risks related to the above securities will have a material adverse impact on our financial position, results of operations or liquidity.

ITEM 4. CONTROLS AND PROCEDURES

Evaluation of Disclosure Controls and Procedures

We maintain disclosure controls and procedures (as such term is defined in Rules 13a-15(e) and 15d-15(e) under the Exchange Act).

As of the end of the period covered by this Report, our management evaluated, with the participation of our Principal Executive Officer and Principal Financial Officer, the effectiveness of our disclosure controls and procedures as of the end of the period covered by this Report. Based on that evaluation, our Principal Executive Officer and Principal Financial Officer have concluded, as of that time, that our disclosure controls and procedures were effective.

Changes in internal controls

During the quarter ended June 30, 2017, there has been no change in our internal control over financial reporting (as defined in Rule 13a-15(f) under the Exchange Act) 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

See Note 3 – “Commitments and Contingencies – Legal Proceedings” of our Notes to Consolidated Financial Statements, which is incorporated herein by reference.

ITEM 1A. RISK FACTORS

We are not aware of any material changes to the risk factors included in Item 1A “Risk Factors” in our Annual Report on Form 10-K for the year ended December 31, 2016, filed with the SEC on March 1, 2017.

34

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

Issuer Purchases of Equity Securities

Period	Total Number of Shares Purchased		Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs		Approximate Dollar Value of Shares That May Yet be Purchased Under the Plans or Programs (in 000’s)
April 1, 2017 – April 30, 2017		156,566	$	109.19		156,566	$	5,845
May 1, 2017 – May 31, 2017		163,195	$	116.81		163,195	$	76,335
June 1, 2017 – June 30, 2017		54,000	$	145.44		54,000	$	68,481

On October 25, 2016, our Board of Directors approved a new stock repurchase plan, which became effective November 7, 2016, that replaced our prior stock repurchase plan and authorized us to repurchase up to $90 million over the six months following the effective date of the plan.  On April 24, 2017, our Board of Directors approved a new share repurchase program that took effect upon expiration of the prior plan on May 8, 2017 and authorizes the Company to repurchase up to another $90 million of stock over the six months following its effective date.

We will consider repurchasing stock in the future by evaluating such factors as the price of the stock, the daily trading volume and the availability of large blocks of stock and any additional constraints related to material inside information we may possess. Our repurchase of any of our shares will be subject to limitations that may be imposed on such repurchases by applicable securities laws and regulations and the rules of The NASDAQ Stock Market, as well as restrictions under our Credit Agreement. Repurchases may be made in the open market, or in privately negotiated transactions from time to time at our discretion. We have no commitment to make any repurchases.

ITEM 3. DEFAULTS UPON SENIOR SECURITIES

None.

ITEM 4. MINE SAFETY DISCLOSURES

Not applicable.

ITEM 5. OTHER INFORMATION

None.

ITEM 6. EXHIBITS

10.1	Consulting Agreement, dated as of July 31, 2017, between James Bortnak and Stamps.com Inc. (1)
31.1	Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002. *
32.2	Certification pursuant to 18 U.S.C. Section 1350, as adopted pursuant to section 906 of the Sarbanes-Oxley Act of 2002. *

101.INS	XBRL Instance Document
101.SCH	XBRL Taxonomy Extension Schema Document
101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
101.DEF	XBRL Taxonomy Extension Definition Linkbase Document
101.LAB	XBRL Taxonomy Extension Label Linkbase Document
101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

* Furnished, not filed.

(1) Incorporated herein by reference to the Company’s Form 8-K filed with the Securities and Exchange Commission on August 2, 2017 (File No. 000-26427).

35

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.

	STAMPS.COM INC.
	(Registrant)
August 8, 2017	By:	/s/ KEN MCBRIDE
		Ken McBride
		Chairman and Chief Executive Officer

August 8, 2017	By:	/s/ JEFF CARBERRY
		Jeff Carberry
		Chief Financial Officer

36

EX-31.1

Exhibit 31.1

Certification Pursuant to Section 302

of the Sarbanes-Oxley Act of 2002

I, Ken McBride, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Stamps.com Inc.;

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 15(d)-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: August 8, 2017	/s/ KEN MCBRIDE
	Ken McBride Chairman and Chief Executive Officer (Principal Executive Officer)

EX-31.2

Exhibit 31.2

Certification Pursuant to Section 302

of the Sarbanes-Oxley Act of 2002

I, Jeff Carberry, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Stamps.com Inc.;

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 15(d)-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:  August 8, 2017	/s/ JEFF CARBERRY
	Jeff Carberry Chief Financial Officer (Principal Financial Officer)

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Stamps.com Inc. (the "Company") on Form 10-Q for the period ended June 30, 2017 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Ken McBride, Chairman and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

Date: August 8, 2017	/s/ KEN MCBRIDE
	Ken McBride Chairman and Chief Executive Officer (Principal Executive Officer)

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO

SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Stamps.com Inc. (the "Company") on Form 10-Q for the period ended June 30, 2017 as filed with the Securities and Exchange Commission on the date hereof (the "Report"), I, Jeff Carberry, Chief Financial Officer of the Company, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d), as applicable of the Securities Exchange Act of 1934, as amended; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and result of operations of the Company.

Date: August 8, 2017	/s/ JEFF CARBERRY
	Jeff Carberry Chief Financial Officer (Principal Financial Officer)

A signed original of this written statement required by Section 906 has been provided to the Company and will be retained by the Company and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Document and Entity Information - shares	6 Months Ended
	Jun. 30, 2017	Jul. 31, 2017
Document and Entity Information [Abstract]
Entity Registrant Name	STAMPS.COM INC
Entity Central Index Key	0001082923
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		16,908,987
Document Fiscal Year Focus	2017
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2017

XML

CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Current assets:
Cash and cash equivalents	$ 110,343	$ 106,932
Short-term investments	0	1,511
Accounts receivable, net	65,897	62,756
Other current assets	23,188	13,081
Total current assets	199,428	184,280
Property and equipment, net	38,199	36,829
Goodwill	239,705	239,705
Intangible assets, net	89,009	97,027
Deferred income taxes, net	45,044	48,782
Other assets	5,127	3,506
Total assets	616,512	610,129
Current liabilities:
Accounts payable and accrued expenses	75,503	86,205
Deferred revenue	3,851	3,858
Current portion of debt, net of debt issuance costs	7,360	6,329
Total current liabilities	86,714	96,392
Long-term debt, net of debt issuance costs	127,087	141,025
Total liabilities	213,801	237,417
Commitments and contingencies (Note 3)
Stockholders' equity:
Common stock, $.001 par value per share Authorized shares: 47,500 in 2017 and 2016 Issued shares: 31,278 in 2017 and 30,507 in 2016 Outstanding shares: 16,932 in 2017 and 16,897 in 2016	54	53
Additional paid-in capital	907,787	855,344
Treasury stock, at cost, 14,346 shares in 2017 and 13,610 in 2016	(341,699)	(252,981)
Accumulated deficit	(163,438)	(229,715)
Accumulated other comprehensive income	7	11
Total stockholders' equity	402,711	372,712
Total liabilities and stockholders' equity	$ 616,512	$ 610,129

XML

CONSOLIDATED BALANCE SHEETS (Unaudited) (Parenthetical) - $ / shares shares in Thousands	Jun. 30, 2017	Dec. 31, 2016
Stockholders' equity:
Common stock, par value (in dollars per share)	$ 0.001	$ 0.001
Common stock, shares authorized (in shares)	47,500	47,500
Common stock, shares issued (in shares)	31,278	30,507
Common stock, shares outstanding (in shares)	16,932	16,897
Treasury stock, shares (in shares)	14,346	13,610

XML

CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Revenues:
Service	$ 102,685	$ 72,590	$ 195,105	$ 141,696
Product	4,763	4,851	10,477	10,406
Insurance	4,393	4,082	8,833	8,593
Customized postage	4,276	2,467	6,718	5,104
Other	23	23	47	51
Total revenues	116,140	84,013	221,180	165,850
Cost of revenues (exclusive of amortization of intangible assets, which is included in general and administrative expense):
Service	12,726	8,857	25,402	18,151
Product	1,593	1,642	3,395	3,440
Insurance	1,213	1,266	2,581	2,629
Customized postage	3,557	1,955	5,449	4,122
Total cost of revenues	19,089	13,720	36,827	28,342
Gross profit	97,051	70,293	184,353	137,508
Operating expenses:
Sales and marketing	22,280	20,082	45,430	41,479
Research and development	11,628	8,131	22,150	16,468
General and administrative	21,451	17,113	40,433	32,375
Total operating expenses	55,359	45,326	108,013	90,322
Income from operations	41,692	24,967	76,340	47,186
Interest expense	(932)	(905)	(1,812)	(1,820)
Interest and other income	159	31	189	74
Income before income taxes	40,919	24,093	74,717	45,440
Income tax expense	9,879	9,802	10,539	17,911
Net income	$ 31,040	$ 14,291	$ 64,178	$ 27,529
Net income per share
Basic (in dollars per share)	$ 1.83	$ 0.82	$ 3.79	$ 1.58
Diluted (in dollars per share)	$ 1.71	$ 0.79	$ 3.54	$ 1.49
Weighted average shares outstanding
Basic (in shares)	16,930	17,384	16,916	17,370
Diluted (in shares)	18,125	18,192	18,147	18,428

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CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) [Abstract]
Net income	$ 31,040	$ 14,291	$ 64,178	$ 27,529
Other comprehensive income, net of tax:
Unrealized (loss) gain on investments	(2)	(8)	(4)	4
Comprehensive income	$ 31,038	$ 14,283	$ 64,174	$ 27,533

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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016
Operating activities:
Net income	$ 64,178	$ 27,529
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	10,626	8,778
Stock-based compensation expense	22,335	15,933
Deferred income tax expense	5,838	16,055
Stock option windfall tax expense (benefit)	0	(307)
Accretion of debt issuance costs	186	186
Changes in operating assets and liabilities, net of assets and liabilities acquired:
Accounts receivable	(3,140)	8,971
Other current assets, net of excess tax benefit from stock-based award activity	(10,107)	(2,233)
Other assets	(1,621)	741
Deferred revenue	(7)	1,405
Accounts payable and accrued expenses	(9,799)	4,784
Net cash provided by operating activities	78,489	81,842
Investing activities:
Sale of short-term investments	1,502	3,632
Sale of long-term investments	10	66
Purchase of long-term investments	(4)	(15)
Acquisition of Endicia	0	(573)
Acquisition of property and equipment	(4,360)	(701)
Net cash (used in) provided by investing activities	(2,852)	2,409
Financing activities:
Proceeds from short term financing obligation, net of repayments	(524)	510
Principal payments on term loan	(3,094)	(2,061)
Payment on revolving credit facility	(10,000)	(10,000)
Proceeds from exercise of stock options	28,641	7,042
Issuance of common stock under Employee Stock Purchase Plan	1,469	1,108
Repurchase of common stock	(87,919)	(30,010)
Shares withheld to satisfy statutory income tax withholding obligations	(799)	0
Stock option windfall tax benefit	0	307
Net cash used in financing activities	(72,226)	(33,104)
Net increase in cash and cash equivalents	3,411	51,147
Cash and cash equivalents at beginning of period	106,932	65,126
Cash and cash equivalents at end of period	110,343	116,273
Supplemental information:
Capital expenditures accrued but not paid at period end	376	867
Issuance of 2015 and 2014 earn-out shares	0	63,209
Noncash adjustment of purchase price for Endicia acquisition	0	372
Tenant improvement allowance	$ 848	$ 676

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Summary of Significant Accounting Policies

6 Months Ended

Jun. 30, 2017

Summary of Significant Accounting Policies [Abstract]

Summary of Significant Accounting Policies

1. Summary of Significant Accounting Policies

Basis of Presentation

We prepared the consolidated financial statements included herein pursuant to the rules and regulations of the Securities and Exchange Commission (SEC). Certain information and footnote disclosures normally included in financial statements prepared in accordance with United States (U.S.) generally accepted accounting principles (GAAP) have been condensed or omitted pursuant to such rules and regulations. We believe that the disclosures are adequate to make the information presented not misleading. We recommend that these consolidated financial statements be read in conjunction with the audited consolidated financial statements and the notes thereto included in our latest annual report on Form 10-K for the fiscal year ended December 31, 2016, filed with the SEC on March 1, 2017.

In our opinion, these unaudited consolidated financial statements contain all adjustments (consisting only of normal recurring adjustments) considered necessary to present fairly our financial position as of June 30, 2017, our results of operations for the three and six months ended June 30, 2017, and our cash flows for the six months ended June 30, 2017.  The results of operations for the interim period are not necessarily indicative of the results that may be expected for the fiscal year ending December 31, 2017.

Principles of Consolidation

The consolidated financial statements include the accounts of Stamps.com Inc., Auctane LLC (ShipStation), Interapptive, Inc. (ShipWorks), PSI Systems Inc. (Endicia), ShippingEasy Group, Inc. (ShippingEasy) and PhotoStamps Inc.  In July 2016, we completed our acquisition of 100% of the outstanding shares of ShippingEasy.

Because 100% of the voting control of ShipStation, ShipWorks, Endicia and ShippingEasy is held by us, we have consolidated the results of operations of ShipStation, ShipWorks, Endicia and ShippingEasy from the date we obtained control in the accompanying consolidated financial statements. Similarly, due to our 100% control of PhotoStamps, Inc., PhotoStamps, Inc. is also consolidated in the accompanying consolidated financial statements from the date of its inception. Intercompany accounts and transactions between consolidated entities have been eliminated in consolidation.

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and the accompanying notes.  Actual results could differ from those estimates, and such differences may be material to the consolidated financial statements. Examples include estimates of loss contingencies, realizability of deferred income taxes, the estimates and assumptions used to calculate stock-based compensation, the estimates and assumptions used to calculate the allocation of the purchase price related to our acquisitions, and estimates regarding the useful lives of our building, amortizable intangible assets, and goodwill.

Business Combinations

The acquisition method of accounting is used for business combinations. The results of operations of acquired businesses are included in our consolidated financial statements prospectively from the date of acquisition. The fair value of purchase consideration is allocated to the assets acquired and liabilities assumed from the acquired entity and is generally based on their fair value at the acquisition date. The excess of the fair value of purchase consideration over the fair value of the assets acquired and liabilities assumed is recorded as goodwill. Historically, the primary items that have generated goodwill include anticipated synergies between the acquired business and the Company and the acquired assembled workforce, neither of which qualifies for recognition as an intangible asset. Acquisition-related expenses are recognized in our consolidated financial statements as incurred.

Contingencies and Litigation

In the ordinary course of business, we are subject to various routine litigation matters as a claimant and a defendant. We record any amounts recovered in these matters when received. We establish loss provisions for claims against us when the loss is both probable and can be reasonably estimated.  If either or both of the criteria are not met, we assess whether there is at least a reasonable possibility that a loss, or additional losses, may have been incurred. If there is a reasonable possibility that a loss or additional loss may have been incurred for such proceedings, we disclose the estimate of the amount of loss or possible range of loss, or disclose that an estimate of loss cannot be made, as applicable.

Deferred Revenue

Our deferred revenue relates mainly to service revenue, which generally arises due to the timing of payment versus the provision of services for certain customers billed in advance.

Fair Value of Financial Instruments

Carrying amounts of certain of our financial instruments, including cash and cash equivalents, accounts receivable and accounts payable, approximate fair value due to their short maturities. The fair values of investments are determined using quoted market prices for those securities or similar financial instruments.  The Company’s outstanding debt held by third-party financial institutions is carried at cost, adjusted for debt issuance costs. The Company’s debt is not publicly traded and the carrying amount typically approximates fair value for debt that accrues interest at a variable rate for companies with similar financial characteristics as the Company, which are considered Level 2 inputs.

Goodwill

Goodwill represents the excess of the fair value of consideration given over the fair value of the tangible assets, identifiable intangible assets and liabilities assumed in a business combination.  We are required to test goodwill for impairment annually and whenever events or circumstances indicate the fair value of a reporting unit may be below its carrying value.  Goodwill is reviewed for impairment annually on October 1. A reporting unit is the operating segment or a business that is one level below that operating segment. Reporting units are aggregated as a single reporting unit if they have similar economic characteristics. We aggregated our reporting units into a single reporting unit because we determined they have similar economic characteristics.

Goodwill is reviewed for impairment annually on October 1 utilizing either a qualitative assessment or a two-step process.  We have an option to make a qualitative assessment of a reporting unit's goodwill for impairment.  If we choose to perform a qualitative assessment and determine the fair value more likely than not exceeds the carrying value, no further evaluation is necessary.  For reporting units where we perform the two-step process, the first step requires us to compare the fair value of each reporting unit, which we primarily determine using an income approach based on the present value of discounted cash flows, to the respective carrying value, which includes goodwill.  If the fair value of the reporting unit exceeds its carrying value, the goodwill is not considered impaired.  If the carrying value is higher than the fair value, there is an indication that impairment may exist and the second step is required.  In step two, the implied fair value of goodwill is calculated as the excess of the fair value of a reporting unit over the fair values assigned to its assets and liabilities.  If the implied fair value of goodwill is less than the carrying value of the reporting unit's goodwill, the difference is recognized as an impairment loss. As of June 30, 2017, we are not aware of any indicators of impairment that would require an impairment analysis other than our annual impairment analysis.

Impairment of Long-Lived Assets and Intangible Assets

Long-lived assets including intangible assets with finite useful lives are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to future net cash flows expected to be generated by the asset.  If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets.  Assets to be disposed of are reported at the lower of the carrying amount or fair value less costs to sell.

Intangible assets that have indefinite useful lives are not amortized but, instead, are tested at least annually for impairment while intangible assets that have finite useful lives are amortized over their respective useful lives.

Income Taxes

We account for income taxes in accordance with Financial Accounting Standards Board (FASB) ASC Topic No. 740, Income Taxes (Income Taxes), which requires that deferred tax assets and liabilities be recognized using enacted tax rates for the effect of temporary differences between the book and tax basis of recorded assets and liabilities. Income Taxes also requires that deferred tax assets be reduced by a valuation allowance if it is more likely than not that some or all of the net deferred tax assets will not be realized. We record a valuation allowance to reduce our gross deferred tax assets to the amount that is more likely than not (a likelihood of more than 50 percent) to be realized.  In order for us to realize our deferred tax assets, we must be able to generate sufficient taxable income. We evaluate the appropriateness of our deferred tax assets and related valuation allowance in accordance with Income Taxes based on all available positive and negative evidence. As of June 30, 2017 and December 31, 2016, we do not have any valuation allowance recorded to reduce our gross deferred tax assets as we believe we have met the more likely than not threshold and we will realize our tax loss carry-forwards in the foreseeable future.

Property and Equipment

We account for property and equipment at cost less accumulated depreciation and amortization. We compute depreciation using the straight-line method over the estimated useful life of the asset, generally three to five years for furniture, fixtures and equipment and ten to forty years for building and building improvements. Leasehold improvements are capitalized and amortized over the shorter of the useful life of the asset or the remaining term of the lease.  We have a policy of capitalizing expenditures that materially increase assets’ useful lives and charging ordinary maintenance and repairs to operations as incurred. When property or equipment is disposed of, the cost and related accumulated depreciation and amortization are removed, and any gain or loss is included in operations.

Revenue Recognition

We recognize revenue from product sales or services rendered, as well as commissions from advertising or sale of products by third party vendors to our customer base when the following four revenue recognition criteria are met: persuasive evidence of an arrangement exists; delivery has occurred or services have been rendered; the selling price is fixed or determinable; and collectability is reasonably assured.

We earn service revenue in several different ways: (1) customers may pay us a monthly fee based on a subscription plan; (2) we may be compensated directly by the United States Postal Service (USPS) for certain qualifying customers under our USPS partnership; (3) we may earn transaction related revenue based on customers purchasing postage or printing shipping labels; (4) we may earn compensation by offering customers a discounted postage rate that is provided to the customers by our integration partners; and (5) we may earn other types of revenue shares or other compensation from specific customers or integration partners.  Revenue is recognized in the period that services are provided.

Customers purchase postage from the USPS through our mailing and shipping solutions.  Postage purchase funds that are transferred directly from the customers to the USPS are not recognized as revenue for this postage, as it is purchased by our customers directly from the USPS.

Customized postage revenue, which includes the face value of postage, from the sale of PhotoStamps and PictureItPostage sheets and rolls is made pursuant to a sales contract that provides for transfer of both title and risk of loss upon our delivery to the carrier and revenue is recognized at that time.

On a limited basis, we allow third parties to offer products and promotions to our customer base. These arrangements generally provide payment in the form of a flat fee or revenue sharing arrangements where we receive payment upon customers accessing third party products and services. Total revenue from such advertising arrangements was not significant during the six months ended June 30, 2017 and June 30, 2016, respectively.

We provide our customers with the opportunity to purchase parcel insurance directly through our solutions. Insurance revenue represents the gross amount charged to the customer for purchasing insurance and the related cost represents the amount paid to our insurance providers. We recognize insurance revenue on insurance purchases upon the ship date of the insured package.

Short-Term Financing Obligations

We utilize short-term financing, which is separate from our debt, to fund certain Company operations.  Short-term financing obligations are included in accounts payable and accrued expenses in the accompanying consolidated balance sheets.  As of June 30, 2017, we had $15.2 million in short-term financing obligations and $90.3 million of unused short-term financing obligations credit. As of December 31, 2016, we had $15.6 million in short-term financing obligations and $90.0 million of unused credit.

Trademarks and Intangible Assets

Acquired trademarks and intangibles include both amortizable and non-amortizable assets and are included in intangible assets, net in the accompanying consolidated balance sheets. Intangible assets are carried at cost less accumulated amortization. Cost associated with internally developed intangible assets is typically expensed as incurred as research and development costs.  Amortization of amortizable intangible assets is calculated on a straight-line basis, which is consistent with the expected future cash flows.

Treasury Stock

During the six-months ended June 30, 2017 and June 30, 2016, we repurchased approximately 730,000 shares and 335,000 shares for $87.9 million and $30.0 million, respectively. Also, 6,670 shares were withheld to satisfy income tax obligations related to performance-based inducement equity awards issued to the General Manager and Chief Technology Officer of ShippingEasy on March 31, 2017.

Accounting Guidance Adopted in 2017

Share-based Payment Transactions to Employees

On January 1, 2017, the Company adopted Accounting Standards Update No. 2016-09, Compensation-Stock Compensation (Topic 718):  Improvements to Employee Share-Based Payment Accounting (ASU 2016-09) issued by the FASB on a prospective basis that changes the reporting for certain aspects of share-based payments. One aspect of the guidance requires that the income tax effects of share-based awards be recognized in the income tax provision in the consolidated statement of operations when the awards vest or are settled. Under the previous guidance, excess tax benefits and deficiencies were recognized in additional paid-in capital in the consolidated balance sheets when the awards vested or were settled.  For the six months ended June 30, 2017, the amount of excess tax benefits recognized in the income tax provision was approximately $18.3 million.  For the six months ended June 30, 2016, the amount of excess tax benefits recognized in additional paid-in capital was not material. In addition, because excess tax benefits are no longer recognized in additional paid-in capital under the new guidance, such amounts are no longer included in the determination of assumed proceeds in applying the treasury stock method when computing earnings per share.

A net cumulative-effect adjustment of $2.1 million, which was an increase to retained earnings and the deferred tax asset balance as of January 1, 2017, was recorded to reflect the recognition of the previously unrecognized excess tax benefits using the modified retrospective method.

Another aspect of the new guidance requires that excess tax benefits be classified as a cash flow from operating activities, rather than a cash flow from financing activities, in the consolidated statement of cash flows. For the six months ended June 30, 2017, the amount of excess tax benefits presented as a cash flow from operating activities was $18.3 million; this amount is included within the change of other current assets, net of excess tax benefit from stock-based award activity line item in the consolidated statement of cash flows.  For the six months ended June 30, 2016, the amount of excess tax benefits presented as a cash flow from financing was not material.  The presentation requirements for cash flows related to excess tax benefits were adopted prospectively. Accordingly, the operating activity cash flows were not adjusted for the year ended December 31, 2016.

The new standard also provides an accounting policy election to account for forfeitures as they occur.  We elected to account for forfeitures as they occur, rather than estimate expected forfeitures. The impact of this was not material.

Another aspect of the new guidance clarifies that all cash payments made totax authorities on an employee’s behalf for withheld shares should be presented as a financing activity on our consolidated statements of cash flows. The presentation requirements for cash flows related to employee taxes paid for withheld shares were adopted retrospectively. The Company did not withhold shares for employee taxes in fiscal 2016; as such, there was no change to the December 31, 2016 consolidated statement of cash flows related to employee taxes. The Company accrued $0.8 million of employee taxes in the first quarter of 2017, which were classified as a financing activity on our consolidated statements of cash flows when paid in the second quarter of 2017.

The other aspects of the new guidance did not have any material effect on the Company’s consolidated financial statements.

Inventory Measurement Principle

In July 2015, the FASB issued ASU 2015-11, a new accounting standard which changed the measurement principle for inventory from the lower of cost or market to the lower of cost and net realizable value for entities that do not use the last-in, first-out (LIFO) or retail inventory method. The changes also eliminate the requirement to consider replacement cost or net realizable value less an approximately normal profit margin when measuring inventory for entities that do not use the LIFO or retail inventory method. The changes were effective for the Company in the first quarter of 2017 using a prospective transition approach. The adoption of the new guidance did not have a material effect on the Company’s consolidated financial statements.

Accounting Guidance Not Yet Adopted

Revenue Recognition

In May 2014, the FASB issued Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers (ASU 2014-09) an updated standard on revenue recognition. This ASU will supersede the revenue recognition requirements in Accounting Standards Codification Topic 605, Revenue Recognition, and most industry-specific guidance.  ASU 2014-09 provides enhancements to the quality and consistency of how revenue is reported while also improving comparability in the financial statements of companies reporting using U.S. GAAP and International Financial Reporting Standards.  The core principle of the new standard is for companies to recognize revenue to depict the transfer of goods or services to customers in amounts that reflect the consideration to which the company expects to be entitled in exchange for those goods or services. In doing so, the companies may be required to use more judgment and make more estimates than under current authoritative guidance. ASU 2014-09 will be effective for the Company in the first quarter of fiscal 2018 and may be applied on a full retrospective or modified retrospective approach. The Company is currently in the process of reviewing its material contracts to assess the impact of the new standard.  While the Company has performed a review of the impact on certain contracts, it has not completed a review of all material contracts.  As a result, the Company is currently still in the process of evaluating the adoption method and the impact the adoption of this standard will have on its consolidated financial statements.

Leases

In February 2016, the FASB issued ASU 2016-02, a new accounting standard for leases. The new standard generally requires the recognition of financing and operating lease liabilities and corresponding right-of-use assets on the balance sheet. For financing leases, a lessee recognizes amortization of the right-of-use asset as an operating expense over the lease term separately from interest on the lease liability. For operating leases, a lessee recognizes its total lease expense as an operating expense over the lease term. The amendments are effective for the Company in the first quarter of 2019 using a modified retrospective approach with early adoption permitted. The Company is currently evaluating the impact the adoption of this standard will have on its consolidated financial statements.

Goodwill Impairment

In January 2017, the FASB issued ASU 2017-04, a standard which simplifies the accounting for goodwill impairment. The guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. Goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill.  The guidance will become effective on a prospective basis for the Company on January 1, 2020 and is not expected to have a material impact on the Company’s consolidated financial statements.

Definition of a Business

In January 2017, the FASB issued ASU 2013-12, guidance that changes the definition of a business for accounting purposes. Under the new guidance, an entity first determines whether substantially all of the fair value of a set of assets acquired is concentrated in a single identifiable asset or a group of similar identifiable assets. If this threshold is met, the set of assets is not deemed to be a business. If this threshold is not met, the entity then evaluates whether the set of assets meets the requirement to be deemed a business, which at minimum, requires there to be an input and a substantive process that together significantly contribute to the ability to create outputs. The guidance will become effective on a prospective basis for the Company on January 1, 2020 and is not expected to have a material impact on the Company’s consolidated financial statements.

Subsequent Events

We are not aware of any material subsequent events or transactions that have occurred that would require recognition in the financial statements or disclosure in the notes to the financial statements, except those described in the following paragraph.

Effective July 31, 2017, we entered an agreement with our co-president and corporate & business development officer, pursuant to which he will transition out of such position and will be available to provide services to us for the term of the agreement.  We expect to record a charge of approximately $6 million in the third quarter of 2017 in connection with the execution of this agreement.

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Acquisitions

6 Months Ended

Jun. 30, 2017

Acquisitions [Abstract]

Acquisitions

2. Acquisitions

We have accounted for all of our acquisitions under the acquisition method of accounting in accordance with the provisions of FASB ASC Topic No. 805 Business Combinations.

ShippingEasy Acquisition

On July 1, 2016, we completed our acquisition of ShippingEasy Group, Inc. (ShippingEasy) when our wholly owned subsidiary was merged with and into ShippingEasy, resulting in our 100% ownership of ShippingEasy.  The merger agreement provided for us to pay $55.0 million in aggregate merger consideration to the former owners of ShippingEasy, payable in cash. The purchase price was subject to adjustments for changes in ShippingEasy’s net working capital.  The net purchase price including adjustments for net working capital totaled approximately $55.4 million and was funded from current cash and investment balances.

In connection with the acquisition, we issued performance-based inducement equity awards to each of the General Manager and Chief Technology Officer of ShippingEasy. These inducement awards cover an aggregate of up to 43,567 common shares each if earnings targets for ShippingEasy are achieved over a two and one-half year period beginning July 1, 2016. The two and one-half year period is divided into three phases consisting of the six months ended December 31, 2016 and each of the twelve months ending December 31, 2017 and 2018. The awards are subject to proration if at least 75% of the applicable target is achieved and are subject to forfeiture or acceleration based on changes in employment circumstances over the performance period. We recognize stock-based compensation expense associated with the performance-based inducement equity award ratably over each phase based on the estimated probable achievement of each financial target. The awards were a material inducement to the General Manager and Chief Technology Officer entering into employment agreements with Stamps.com in connection with the acquisition of ShippingEasy. In fiscal 2016, we determined the achievement of 100% of the earnings target for the six months ended December 31, 2016 was probable, therefore, we recognized approximately $1.9 million of stock-based compensation expense, representing 21,783 shares, for these inducement equity awards during the six months ended December 31, 2016. The $1.9 million of stock-based compensation expense recognized represents 100% of the total performance-based inducement equity award for the first phase. The equity award for the first phase was issued in the first quarter of 2017 with 15,113 shares distributed and 6,670 shares withheld to satisfy income tax obligations. In the first and second quarters of 2017, we determined the achievement of 100% of the earnings target for the twelve months ended December 31, 2017 is probable, therefore, we recognized approximately $1.2 million and $2.5 million of stock-based compensation expense for these inducement equity awards during the three and six months ended June 30, 2017, respectively.  The $2.5 million of stock-based compensation expense recognized in the six months ended June 30, 2017 represents 50% of the total performance-based inducement equity award for the second phase.

We also issued inducement stock option grants for an aggregate of approximately 62,000 shares of Stamps.com common stock to 48 new employees in connection with our acquisition of ShippingEasy. Each option vests 25% on the one year anniversary of the July 1, 2016 grant date with the remaining 75% vesting in approximately equal monthly increments over the immediately succeeding thirty-six months provided that the option holder is still employed by the Company on the vesting dates. The stock options have a ten year term and an exercise price equal to the closing price of Stamps.com common stock on the grant date of July 1, 2016. The stock options were granted as inducements material to the new employees entering into employment with Stamps.com in connection with the acquisition of ShippingEasy. The related stock-based compensation expense we recognized in fiscal 2016 and for the three and six months ended June 30, 2017 was not material.

The total net purchase price for the ShippingEasy acquisition was allocated to the assets acquired and the liabilities assumed based on their fair values. The following table is the final allocation of the purchase price (in thousands, except years):

	Fair Value			Fair Value		Useful Life (In Years)		Weighted Average Estimated Useful Life (In Years)
Trade accounts receivable	$	1,194
Other assets		76
Property and equipment		40
Goodwill		40,953
Identifiable intangible assets:
Trade name				$	1,304		8
Developed technology					6,948		5
Customer relationships					6,316		5
Non-compete agreements					1,111		3 to 5
Total identifiable intangible assets		15,679							5
Accrued expenses and other liabilities		(707	)
Deferred revenue		(185	)
Deferred tax liability		(1,603	)
Total purchase price		55,447
Less: settlement of preexisting relationship (accounts receivable)		1,194
Purchase price, net of settlement	$	54, 253

Goodwill represented the excess of the fair value of consideration given over the fair value of the tangible assets, identifiable intangible assets and liabilities assumed in the business combination and the potential acquisition related synergies.  Such synergies include leveraging Stamps.com’s resources, personnel, expertise and capital to grow ShippingEasy’s revenue faster than it otherwise would have as a standalone company. The identified intangible assets consisted of trade names, developed technology, non-compete agreements and customer relationships.  The estimated fair values of the trademark and developed technology were determined using the “relief from royalty” method.  The estimated fair value of the non-compete agreements was determined using the “with and without” method.  The estimated fair value of customer relationships was determined using the “excess earnings” method.  The rate utilized to discount net cash flows to their present values was approximately 23% and was determined after consideration of the overall enterprise rate of return and the relative risk and importance of the assets to the generation of future cash flows.  Trademark, developed technology, non-compete and customer relationships are each amortized on a straight-line basis over their estimated useful lives.  The amortization of acquired intangibles is approximately $761,000 per quarter for the remaining estimated useful lives.  The goodwill recorded in this acquisition was not deductible for tax purposes.

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2017

Commitments and Contingencies [Abstract]

Commitments and Contingencies

3. Commitments and Contingencies

Legal Proceedings

In the ordinary course of business, we are subject to various routine legal proceedings and claims incidental to our business, and we do not believe that these proceedings and claims would reasonably be expected to have a material adverse effect on our financial position, results of operations or cash flows.

Although management at present believes that the ultimate outcome of the various routine proceedings, individually and in the aggregate, will not materially harm our financial position, results of operations, cash flows, or overall trends, legal proceedings are subject to inherent uncertainties, and unfavorable rulings or other events could occur. An unfavorable outcome for an amount in excess of management’s present expectations may result in a material adverse impact on our business, results of operations, financial position, and overall trends.

Commitments

The Company leases facilities pursuant to noncancelable operating lease agreements expiring through fiscal 2021. Rent expense is recognized on a straight-line basis over the lease term. Lease incentives are amortized over the lease term on a straight-line basis. Leasehold improvements are capitalized and amortized over the shorter of the useful life of the asset or the remaining term of the lease.  Rent expense for the three and six months ended June 30, 2017 was approximately $900,000 and $1.9 million, respectively.  Rent expense for the three and six months ended June 30, 2016 was approximately $800,000 and $1.3 million, respectively.

The following table is a schedule of our significant future contractual obligations and commercial commitments (other than debt commitments), which consist of future minimum lease payment under operating leases as of June 30, 2017 (in thousands):

Twelve Month Period Ending June 30,	Operating Lease Obligations
2018	$	3,931
2019		2,257
2020		1,386
2021		1,333
2022		232
Thereafter		—
Total	$	9,139

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Net Income per Share

6 Months Ended

Jun. 30, 2017

Net Income per Share [Abstract]

Net Income per Share

4. Net Income per Share

The following table reconciles share amounts utilized to calculate basic and diluted net income per share (in thousands, except per share data):

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Net income	$	31,040	$	14,291	$	64,178	$	27,529
Basic - weighted average common shares		16,930		17,384		16,916		17,370
Diluted effect of common stock equivalents		1,195		808		1,231		1,058
Diluted - weighted average common shares		18,125		18,192		18,147		18,428
Earnings per share:
Basic	$	1.83	$	0.82	$	3.79	$	1.58
Diluted	$	1.71	$	0.79	$	3.54	$	1.49

The calculation of dilutive shares excludes the effect of the following options that are considered anti-dilutive (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Anti-dilutive stock option shares		42		287		42		147

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Stock-Based Compensation

6 Months Ended

Jun. 30, 2017

Stock-Based Compensation [Abstract]

Stock-Based Compensation

5. Stock-Based Compensation

We account for share-based employee compensation plans under the fair value recognition and measurement provisions in accordance with applicable accounting standards, which require all share-based payments to employees, including grants of stock options and restricted stock units (RSUs), to be measured based on the grant date fair value of the awards, with the resulting expense generally recognized on a straight-line basis over the period during which the employee is required to perform service in exchange for the award.

As described in Note 1 – “Summary of Significant Accounting Policies,” we adopted ASU 2016-09, which among other items, provides an accounting policy election to account for forfeitures as they occur, rather than to account for them based on an estimate of expected forfeitures. We elected to account for forfeitures as they occur and therefore, share-based compensation expense for the three and six months ended June 30, 2017 has been calculated based on actual forfeitures in our consolidated statements of income, rather than our previous approach which was net of estimated forfeitures. The net cumulative effect of this change did not have a material impact on the consolidated financial statements. Share-based compensation expense for the year ended December 31, 2016 was recorded net of estimated forfeitures, which were based on historical forfeitures and adjusted to reflect changes in facts and circumstances, if any.

We use the Black-Scholes-Merton option valuation model to estimate the fair value of share-based payment awards on the date of grant, which requires us to use a number of complex estimates and subjective assumptions, including stock price volatility, expected term, risk-free interest rates and projected employee stock option exercise behaviors. In the case of options we grant, our assumption of expected volatility is based on the historical volatility of our stock price over the term equal to the expected life of the options. We base the risk-free interest rate on U.S. Treasury zero-coupon issues with a remaining term equal to the expected life of the options assumed at the date of grant.  The estimated expected life represents the weighted-average period the stock options are expected to remain outstanding, determined based on an analysis of historical exercise behavior.

Compensation expense for employee stock options granted is generally recognized using the straight-line method over their respective vesting periods of up to five years. Starting in the third quarter of fiscal 2016, our stock-based compensation expense included performance-based inducement equity awards relating to the ShippingEasy acquisition as described in Note 2 - “Acquisitions.” Stock-based compensation expense related to the ShippingEasy performance-based inducement equity awards is equal to the grant date fair value of the common stock and is recognized over the required performance period.  Total compensation expense related to ShippingEasy’s performance-based equity awards during the three and six months ended June 30, 2017 was approximately $1.2 million and $2.5 million, respectively.

The following table sets forth the stock-based compensation expense that we recognized for the periods indicated (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Stock-based compensation expense relating to:
Employee and director stock options	$	10,723	$	8,154	$	21,858	$	15,435
Employee stock purchases		245		263		477		498
Total stock-based compensation expense	$	10,968	$	8,417	$	22,335	$	15,933
Stock-based compensation expense relating to:
Cost of revenues	$	445	$	450	$	993	$	875
Sales and marketing		1,975		1,857		4,282		3,588
Research and development		2,221		1,425		4,717		2,780
General and administrative		6,327		4,685		12,343		8,690
Total stock-based compensation expense	$	10,968	$	8,417	$	22,335	$	15,933

The following are the weighted average assumptions used in the Black-Scholes valuation model for the periods indicated:

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Expected dividend yield		—			—			—			—
Risk-free interest rate		1.5	%		1.0	%		1.5	%		1.0	%
Expected volatility		46.1	%		48.6	%		46.4	%		48.4	%
Expected life (in years)		3.4			3.4			3.4			3.4
Forfeiture rate		—			6.0	%		—			6.0	%

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Goodwill and Intangible Assets

6 Months Ended

Jun. 30, 2017

Goodwill and Intangible Assets [Abstract]

Goodwill and Intangible Assets

6. Goodwill and Intangible Assets

Goodwill was approximately $239.7 million as of June 30, 2017 and December 31, 2016, respectively.

We have amortizable and non-amortizable intangible assets consisting of trademarks, trade names, developed technology, non-compete agreements, customer relationships and other totaling approximately $125.4 million in gross carrying amount as of both June 30, 2017 and December 31, 2016.  Non-amortizable assets of $11.4 million as of both June 30, 2017 and December 31, 2016 consist primarily of the trade name relating to the Endicia acquisition.

The following table summarizes our amortizable intangible assets as of June 30, 2017 (in thousands):

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Patents and Others	$	8,889	$	8,797	$	92
Customer Relationships		60,816		17,185		43,631
Technology		40,048		8,699		31,349
Non-Compete		2,211		1,029		1,182
Trademark		2,004		639		1,365
Total amortizable intangible assets at June 30, 2017	$	113,968	$	36,349	$	77,619

The following table summarizes our amortizable intangible assets as of December 31, 2016 (in thousands):

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Patents and Others	$	8,889	$	8,774	$	115
Customer Relationships		60,816		12,199		48,617
Technology		40,048		6,100		33,948
Non-Compete		2,211		777		1,434
Trademark		2,004		479		1,525
Total amortizable intangible assets at December 31, 2016	$	113,968	$	28,329	$	85,639

We recorded amortization of intangible assets totaling approximately $4.0 million and $8.0 million for the three and six months ended June 30, 2017, respectively.  We recorded amortization of intangible assets totaling approximately $3.2 million and $6.6 million for the three and six months ended June 30, 2016, respectively. Amortization of intangible assets is included in general and administrative expense in the accompanying consolidated statements of income.

As of June 30, 2017, the remaining weighted average amortization period for our amortizable intangible assets is approximately 5.1 years. Our estimated amortization expense for the next five years and thereafter is as follows (in thousands):

Twelve Month Period Ending June 30,	Estimated Amortization Expense
2018	$	16,025
2019		15,667
2020		15,579
2021		15,231
2022		7,783
Thereafter		7,334
Total	$	77,619

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Income Taxes

6 Months Ended

Jun. 30, 2017

Income Taxes [Abstract]

Income Taxes

7. Income Taxes

Our income tax expense was $9.9 million and $10.5 million for the three and six months ended June 30, 2017, respectively, which is primarily attributable to our pre-tax book income multiplied by an estimated annual effective tax rate and discrete tax benefits relating to exercises of options.  Our income tax expense was $9.8 million and $17.9 million for the three and six months ended June 30, 2016, respectively, which is primarily attributable to our pre-tax income including our current tax expense consisting of federal alternative minimum tax and various state taxes and our deferred income tax expense consisting of temporary tax items including stock compensation and differences in the book and tax lives of amortizable intangibles. As described  in Note 1- “Summary of Significant Accounting Policies” we adopted the new accounting guidance that changes the reporting for certain aspects of share-based payments. One aspect of the guidance requires that the income tax effects of share-based awards be recognized in the income tax provision in the consolidated statements of income when the awards vest or are settled. Under the previous guidance, excess tax benefits and deficiencies were recognized in additional paid-in capital in the consolidated balance sheets when the awards vested or were settled.  For the three and six months ended June 30, 2017, the amount of excess tax benefits recognized in the income tax provision was approximately $5.7 million and $18.3 million, respectively.  For the three and six months ended June 30, 2016, respectively, the amount of excess tax benefits recognized in additional paid-in capital was not material.

Our effective income tax rate differs from the statutory income tax rate primarily as a result of permanent tax adjustments for tax benefits from stock options exercised and research and development tax credits, as well as permanent tax adjustments for nondeductible items, such as stock-based compensation and state taxes. We evaluated the appropriateness of our deferred tax assets and related valuation allowance in accordance with Income Taxes based on all available positive and negative evidence. As of June 30, 2017 and December 31, 2016, we do not have any valuation allowance against our deferred tax assets.

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Fair Value Measurements

6 Months Ended

Jun. 30, 2017

Fair Value Measurements [Abstract]

Fair Value Measurements

8. Fair Value Measurements

Financial assets measured at fair value on a recurring basis are classified in one of the three following categories, which are described below:

Level 1 - Valuations based on unadjusted quoted prices for identical assets in an active market

Level 2 - Valuations based on quoted prices in markets where trading occurs infrequently or whose values are based on quoted prices of instruments with similar attributes in active markets

Level 3 - Valuations based on inputs that are unobservable and involve management judgment and our own assumptions about market participants and pricing

The following tables summarize our financial assets measured at fair value on a recurring basis as of June 30, 2017 and December 31, 2016, respectively (in thousands):

			Fair Value Measurement at Reporting Date Using
Description	June 30, 2017		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash and cash equivalents	$	110,343	$	110,343	$	—	$	—
Available-for-sale debt securities		—		—		—		—
Total	$	110,343	$	110,343	$	—	$	—

			Fair Value Measurement at Reporting Date Using
Description	December 31, 2016		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash and cash equivalents	$	106,932	$	106,932	$	—	$	—
Available-for-sale debt securities		1,511		—		1,511		—
Total	$	108,443	$	106,932	$	1,511	$	—

The fair value of our available-for-sale debt securities included in the Level 2 category is based on the market values obtained from an independent pricing service that were evaluated using pricing models that vary by asset class and may incorporate available trade, bid and other market information and price quotes from well-established independent pricing vendors and broker-dealers.

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Cash, Cash Equivalents and Investments

6 Months Ended

Jun. 30, 2017

Cash, Cash Equivalents and Investments [Abstract]

Cash, Cash Equivalents and Investments

9. Cash, Cash Equivalents and Investments

Our cash equivalents and investments consist of money market, asset-backed securities and public corporate debt securities at June 30, 2017 and December 31, 2016. We consider all highly liquid investments with an original or remaining maturity of three months or less at the date of purchase to be cash equivalents. All of our short-term investments are classified as available for sale and are recorded at fair value using the specific identification method. Realized gains and losses are reflected in other income, net using the specific identification method. There was no material unrealized or realized gain or loss with respect to our short-term investments during the six months ended June 30, 2017. Unrealized gains and losses are included as a separate component of stockholders' equity. We do not intend to sell investments with an amortized cost basis exceeding fair value and it is not likely that we will be required to sell the investments before recovery of their amortized cost bases.

The following tables summarize our cash and cash equivalents and investments as of June 30, 2017 and December 31, 2016 (in thousands):

	June 30, 2017
	Cost or Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Cash and cash equivalents:
Cash	$	103,859		—		—		$	103,859
Money market		6,477		9		(2	)		6,484
Total cash and cash equivalents		110,336		9		(2	)		110,343
Short-term investments:
Corporate bonds and asset backed securities		—		—		—			—
Total short-term investments		—		—		—			—
Cash and cash equivalents and short-term investments	$	110,336		9		(2	)	$	110,343

	December 31, 2016
	Cost or Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Cash and cash equivalents:
Cash	$	101,987		—		—		$	101,987
Money market		4,945		—		—			4,945
Total cash and cash equivalents		106,932		—		—			106,932
Short-term investments:
Corporate bonds and asset backed securities		1,500		13		(2	)		1,511
Total short-term investments		1,500		13		(2	)		1,511
Cash and cash equivalents and short-term investments	$	108,432		13		(2	)	$	108,443

As of June 30, 2017, the amortized cost and estimated fair value of our marketable fixed-income securities due within one year and due after one year was immaterial.

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Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2017

Summary of Significant Accounting Policies [Abstract]

Basis of Presentation

Basis of Presentation

We prepared the consolidated financial statements included herein pursuant to the rules and regulations of the Securities and Exchange Commission (SEC). Certain information and footnote disclosures normally included in financial statements prepared in accordance with United States (U.S.) generally accepted accounting principles (GAAP) have been condensed or omitted pursuant to such rules and regulations. We believe that the disclosures are adequate to make the information presented not misleading. We recommend that these consolidated financial statements be read in conjunction with the audited consolidated financial statements and the notes thereto included in our latest annual report on Form 10-K for the fiscal year ended December 31, 2016, filed with the SEC on March 1, 2017.

In our opinion, these unaudited consolidated financial statements contain all adjustments (consisting only of normal recurring adjustments) considered necessary to present fairly our financial position as of June 30, 2017, our results of operations for the three and six months ended June 30, 2017, and our cash flows for the six months ended June 30, 2017.  The results of operations for the interim period are not necessarily indicative of the results that may be expected for the fiscal year ending December 31, 2017.

Principles of Consolidation

Principles of Consolidation

The consolidated financial statements include the accounts of Stamps.com Inc., Auctane LLC (ShipStation), Interapptive, Inc. (ShipWorks), PSI Systems Inc. (Endicia), ShippingEasy Group, Inc. (ShippingEasy) and PhotoStamps Inc.  In July 2016, we completed our acquisition of 100% of the outstanding shares of ShippingEasy.

Because 100% of the voting control of ShipStation, ShipWorks, Endicia and ShippingEasy is held by us, we have consolidated the results of operations of ShipStation, ShipWorks, Endicia and ShippingEasy from the date we obtained control in the accompanying consolidated financial statements. Similarly, due to our 100% control of PhotoStamps, Inc., PhotoStamps, Inc. is also consolidated in the accompanying consolidated financial statements from the date of its inception. Intercompany accounts and transactions between consolidated entities have been eliminated in consolidation.

Use of Estimates

Use of Estimates

The preparation of financial statements in conformity with U.S. GAAP requires us to make estimates and assumptions that affect the amounts reported in the consolidated financial statements and the accompanying notes.  Actual results could differ from those estimates, and such differences may be material to the consolidated financial statements. Examples include estimates of loss contingencies, realizability of deferred income taxes, the estimates and assumptions used to calculate stock-based compensation, the estimates and assumptions used to calculate the allocation of the purchase price related to our acquisitions, and estimates regarding the useful lives of our building, amortizable intangible assets, and goodwill.

Business Combinations

Business Combinations

The acquisition method of accounting is used for business combinations. The results of operations of acquired businesses are included in our consolidated financial statements prospectively from the date of acquisition. The fair value of purchase consideration is allocated to the assets acquired and liabilities assumed from the acquired entity and is generally based on their fair value at the acquisition date. The excess of the fair value of purchase consideration over the fair value of the assets acquired and liabilities assumed is recorded as goodwill. Historically, the primary items that have generated goodwill include anticipated synergies between the acquired business and the Company and the acquired assembled workforce, neither of which qualifies for recognition as an intangible asset. Acquisition-related expenses are recognized in our consolidated financial statements as incurred.

Contingencies and Litigation

Contingencies and Litigation

In the ordinary course of business, we are subject to various routine litigation matters as a claimant and a defendant. We record any amounts recovered in these matters when received. We establish loss provisions for claims against us when the loss is both probable and can be reasonably estimated.  If either or both of the criteria are not met, we assess whether there is at least a reasonable possibility that a loss, or additional losses, may have been incurred. If there is a reasonable possibility that a loss or additional loss may have been incurred for such proceedings, we disclose the estimate of the amount of loss or possible range of loss, or disclose that an estimate of loss cannot be made, as applicable.

Deferred Revenue

Deferred Revenue

Our deferred revenue relates mainly to service revenue, which generally arises due to the timing of payment versus the provision of services for certain customers billed in advance.

Fair Value of Financial Instruments

Fair Value of Financial Instruments

Carrying amounts of certain of our financial instruments, including cash and cash equivalents, accounts receivable and accounts payable, approximate fair value due to their short maturities. The fair values of investments are determined using quoted market prices for those securities or similar financial instruments.  The Company’s outstanding debt held by third-party financial institutions is carried at cost, adjusted for debt issuance costs. The Company’s debt is not publicly traded and the carrying amount typically approximates fair value for debt that accrues interest at a variable rate for companies with similar financial characteristics as the Company, which are considered Level 2 inputs.

Goodwill

Goodwill

Goodwill represents the excess of the fair value of consideration given over the fair value of the tangible assets, identifiable intangible assets and liabilities assumed in a business combination.  We are required to test goodwill for impairment annually and whenever events or circumstances indicate the fair value of a reporting unit may be below its carrying value.  Goodwill is reviewed for impairment annually on October 1. A reporting unit is the operating segment or a business that is one level below that operating segment. Reporting units are aggregated as a single reporting unit if they have similar economic characteristics. We aggregated our reporting units into a single reporting unit because we determined they have similar economic characteristics.

Goodwill is reviewed for impairment annually on October 1 utilizing either a qualitative assessment or a two-step process.  We have an option to make a qualitative assessment of a reporting unit's goodwill for impairment.  If we choose to perform a qualitative assessment and determine the fair value more likely than not exceeds the carrying value, no further evaluation is necessary.  For reporting units where we perform the two-step process, the first step requires us to compare the fair value of each reporting unit, which we primarily determine using an income approach based on the present value of discounted cash flows, to the respective carrying value, which includes goodwill.  If the fair value of the reporting unit exceeds its carrying value, the goodwill is not considered impaired.  If the carrying value is higher than the fair value, there is an indication that impairment may exist and the second step is required.  In step two, the implied fair value of goodwill is calculated as the excess of the fair value of a reporting unit over the fair values assigned to its assets and liabilities.  If the implied fair value of goodwill is less than the carrying value of the reporting unit's goodwill, the difference is recognized as an impairment loss. As of June 30, 2017, we are not aware of any indicators of impairment that would require an impairment analysis other than our annual impairment analysis.

Impairment of Long-Lived Assets and Intangible Assets

Impairment of Long-Lived Assets and Intangible Assets

Long-lived assets including intangible assets with finite useful lives are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable. Recoverability of assets to be held and used is measured by a comparison of the carrying amount of an asset to future net cash flows expected to be generated by the asset.  If such assets are considered to be impaired, the impairment to be recognized is measured by the amount by which the carrying amount of the assets exceeds the fair value of the assets.  Assets to be disposed of are reported at the lower of the carrying amount or fair value less costs to sell.

Intangible assets that have indefinite useful lives are not amortized but, instead, are tested at least annually for impairment while intangible assets that have finite useful lives are amortized over their respective useful lives.

Income Taxes

Income Taxes

We account for income taxes in accordance with Financial Accounting Standards Board (FASB) ASC Topic No. 740, Income Taxes (Income Taxes), which requires that deferred tax assets and liabilities be recognized using enacted tax rates for the effect of temporary differences between the book and tax basis of recorded assets and liabilities. Income Taxes also requires that deferred tax assets be reduced by a valuation allowance if it is more likely than not that some or all of the net deferred tax assets will not be realized. We record a valuation allowance to reduce our gross deferred tax assets to the amount that is more likely than not (a likelihood of more than 50 percent) to be realized.  In order for us to realize our deferred tax assets, we must be able to generate sufficient taxable income. We evaluate the appropriateness of our deferred tax assets and related valuation allowance in accordance with Income Taxes based on all available positive and negative evidence. As of June 30, 2017 and December 31, 2016, we do not have any valuation allowance recorded to reduce our gross deferred tax assets as we believe we have met the more likely than not threshold and we will realize our tax loss carry-forwards in the foreseeable future.

Property and Equipment

Property and Equipment

We account for property and equipment at cost less accumulated depreciation and amortization. We compute depreciation using the straight-line method over the estimated useful life of the asset, generally three to five years for furniture, fixtures and equipment and ten to forty years for building and building improvements. Leasehold improvements are capitalized and amortized over the shorter of the useful life of the asset or the remaining term of the lease.  We have a policy of capitalizing expenditures that materially increase assets’ useful lives and charging ordinary maintenance and repairs to operations as incurred. When property or equipment is disposed of, the cost and related accumulated depreciation and amortization are removed, and any gain or loss is included in operations.

Revenue Recognition

Revenue Recognition

We recognize revenue from product sales or services rendered, as well as commissions from advertising or sale of products by third party vendors to our customer base when the following four revenue recognition criteria are met: persuasive evidence of an arrangement exists; delivery has occurred or services have been rendered; the selling price is fixed or determinable; and collectability is reasonably assured.

We earn service revenue in several different ways: (1) customers may pay us a monthly fee based on a subscription plan; (2) we may be compensated directly by the United States Postal Service (USPS) for certain qualifying customers under our USPS partnership; (3) we may earn transaction related revenue based on customers purchasing postage or printing shipping labels; (4) we may earn compensation by offering customers a discounted postage rate that is provided to the customers by our integration partners; and (5) we may earn other types of revenue shares or other compensation from specific customers or integration partners.  Revenue is recognized in the period that services are provided.

Customers purchase postage from the USPS through our mailing and shipping solutions.  Postage purchase funds that are transferred directly from the customers to the USPS are not recognized as revenue for this postage, as it is purchased by our customers directly from the USPS.

Customized postage revenue, which includes the face value of postage, from the sale of PhotoStamps and PictureItPostage sheets and rolls is made pursuant to a sales contract that provides for transfer of both title and risk of loss upon our delivery to the carrier and revenue is recognized at that time.

On a limited basis, we allow third parties to offer products and promotions to our customer base. These arrangements generally provide payment in the form of a flat fee or revenue sharing arrangements where we receive payment upon customers accessing third party products and services. Total revenue from such advertising arrangements was not significant during the six months ended June 30, 2017 and June 30, 2016, respectively.

We provide our customers with the opportunity to purchase parcel insurance directly through our solutions. Insurance revenue represents the gross amount charged to the customer for purchasing insurance and the related cost represents the amount paid to our insurance providers. We recognize insurance revenue on insurance purchases upon the ship date of the insured package.

Short-Term Financing Obligations

Short-Term Financing Obligations

We utilize short-term financing, which is separate from our debt, to fund certain Company operations.  Short-term financing obligations are included in accounts payable and accrued expenses in the accompanying consolidated balance sheets.  As of June 30, 2017, we had $15.2 million in short-term financing obligations and $90.3 million of unused short-term financing obligations credit. As of December 31, 2016, we had $15.6 million in short-term financing obligations and $90.0 million of unused credit.

Trademarks and Intangible Assets

Trademarks and Intangible Assets

Acquired trademarks and intangibles include both amortizable and non-amortizable assets and are included in intangible assets, net in the accompanying consolidated balance sheets. Intangible assets are carried at cost less accumulated amortization. Cost associated with internally developed intangible assets is typically expensed as incurred as research and development costs.  Amortization of amortizable intangible assets is calculated on a straight-line basis, which is consistent with the expected future cash flows.

Treasury Stock

Treasury Stock

During the six-months ended June 30, 2017 and June 30, 2016, we repurchased approximately 730,000 shares and 335,000 shares for $87.9 million and $30.0 million, respectively. Also, 6,670 shares were withheld to satisfy income tax obligations related to performance-based inducement equity awards issued to the General Manager and Chief Technology Officer of ShippingEasy on March 31, 2017.

Accounting Guidance Adopted in 2017

Accounting Guidance Adopted in 2017

Share-based Payment Transactions to Employees

On January 1, 2017, the Company adopted Accounting Standards Update No. 2016-09, Compensation-Stock Compensation (Topic 718):  Improvements to Employee Share-Based Payment Accounting (ASU 2016-09) issued by the FASB on a prospective basis that changes the reporting for certain aspects of share-based payments. One aspect of the guidance requires that the income tax effects of share-based awards be recognized in the income tax provision in the consolidated statement of operations when the awards vest or are settled. Under the previous guidance, excess tax benefits and deficiencies were recognized in additional paid-in capital in the consolidated balance sheets when the awards vested or were settled.  For the six months ended June 30, 2017, the amount of excess tax benefits recognized in the income tax provision was approximately $18.3 million.  For the six months ended June 30, 2016, the amount of excess tax benefits recognized in additional paid-in capital was not material. In addition, because excess tax benefits are no longer recognized in additional paid-in capital under the new guidance, such amounts are no longer included in the determination of assumed proceeds in applying the treasury stock method when computing earnings per share.

A net cumulative-effect adjustment of $2.1 million, which was an increase to retained earnings and the deferred tax asset balance as of January 1, 2017, was recorded to reflect the recognition of the previously unrecognized excess tax benefits using the modified retrospective method.

Another aspect of the new guidance requires that excess tax benefits be classified as a cash flow from operating activities, rather than a cash flow from financing activities, in the consolidated statement of cash flows. For the six months ended June 30, 2017, the amount of excess tax benefits presented as a cash flow from operating activities was $18.3 million; this amount is included within the change of other current assets, net of excess tax benefit from stock-based award activity line item in the consolidated statement of cash flows.  For the six months ended June 30, 2016, the amount of excess tax benefits presented as a cash flow from financing was not material.  The presentation requirements for cash flows related to excess tax benefits were adopted prospectively. Accordingly, the operating activity cash flows were not adjusted for the year ended December 31, 2016.

The new standard also provides an accounting policy election to account for forfeitures as they occur.  We elected to account for forfeitures as they occur, rather than estimate expected forfeitures. The impact of this was not material.

Another aspect of the new guidance clarifies that all cash payments made totax authorities on an employee’s behalf for withheld shares should be presented as a financing activity on our consolidated statements of cash flows. The presentation requirements for cash flows related to employee taxes paid for withheld shares were adopted retrospectively. The Company did not withhold shares for employee taxes in fiscal 2016; as such, there was no change to the December 31, 2016 consolidated statement of cash flows related to employee taxes. The Company accrued $0.8 million of employee taxes in the first quarter of 2017, which were classified as a financing activity on our consolidated statements of cash flows when paid in the second quarter of 2017.

The other aspects of the new guidance did not have any material effect on the Company’s consolidated financial statements.

Inventory Measurement Principle

In July 2015, the FASB issued ASU 2015-11, a new accounting standard which changed the measurement principle for inventory from the lower of cost or market to the lower of cost and net realizable value for entities that do not use the last-in, first-out (LIFO) or retail inventory method. The changes also eliminate the requirement to consider replacement cost or net realizable value less an approximately normal profit margin when measuring inventory for entities that do not use the LIFO or retail inventory method. The changes were effective for the Company in the first quarter of 2017 using a prospective transition approach. The adoption of the new guidance did not have a material effect on the Company’s consolidated financial statements.

Accounting Guidance Not Yet Adopted

Accounting Guidance Not Yet Adopted

Revenue Recognition

In May 2014, the FASB issued Accounting Standards Update No. 2014-09, Revenue from Contracts with Customers (ASU 2014-09) an updated standard on revenue recognition. This ASU will supersede the revenue recognition requirements in Accounting Standards Codification Topic 605, Revenue Recognition, and most industry-specific guidance.  ASU 2014-09 provides enhancements to the quality and consistency of how revenue is reported while also improving comparability in the financial statements of companies reporting using U.S. GAAP and International Financial Reporting Standards.  The core principle of the new standard is for companies to recognize revenue to depict the transfer of goods or services to customers in amounts that reflect the consideration to which the company expects to be entitled in exchange for those goods or services. In doing so, the companies may be required to use more judgment and make more estimates than under current authoritative guidance. ASU 2014-09 will be effective for the Company in the first quarter of fiscal 2018 and may be applied on a full retrospective or modified retrospective approach. The Company is currently in the process of reviewing its material contracts to assess the impact of the new standard.  While the Company has performed a review of the impact on certain contracts, it has not completed a review of all material contracts.  As a result, the Company is currently still in the process of evaluating the adoption method and the impact the adoption of this standard will have on its consolidated financial statements.

Leases

In February 2016, the FASB issued ASU 2016-02, a new accounting standard for leases. The new standard generally requires the recognition of financing and operating lease liabilities and corresponding right-of-use assets on the balance sheet. For financing leases, a lessee recognizes amortization of the right-of-use asset as an operating expense over the lease term separately from interest on the lease liability. For operating leases, a lessee recognizes its total lease expense as an operating expense over the lease term. The amendments are effective for the Company in the first quarter of 2019 using a modified retrospective approach with early adoption permitted. The Company is currently evaluating the impact the adoption of this standard will have on its consolidated financial statements.

Goodwill Impairment

In January 2017, the FASB issued ASU 2017-04, a standard which simplifies the accounting for goodwill impairment. The guidance removes Step 2 of the goodwill impairment test, which requires a hypothetical purchase price allocation. Goodwill impairment will now be the amount by which a reporting unit’s carrying value exceeds its fair value, not to exceed the carrying amount of goodwill.  The guidance will become effective on a prospective basis for the Company on January 1, 2020 and is not expected to have a material impact on the Company’s consolidated financial statements.

Definition of a Business

In January 2017, the FASB issued ASU 2013-12, guidance that changes the definition of a business for accounting purposes. Under the new guidance, an entity first determines whether substantially all of the fair value of a set of assets acquired is concentrated in a single identifiable asset or a group of similar identifiable assets. If this threshold is met, the set of assets is not deemed to be a business. If this threshold is not met, the entity then evaluates whether the set of assets meets the requirement to be deemed a business, which at minimum, requires there to be an input and a substantive process that together significantly contribute to the ability to create outputs. The guidance will become effective on a prospective basis for the Company on January 1, 2020 and is not expected to have a material impact on the Company’s consolidated financial statements.

Subsequent Events

Subsequent Events

We are not aware of any material subsequent events or transactions that have occurred that would require recognition in the financial statements or disclosure in the notes to the financial statements, except those described in the following paragraph.

Effective July 31, 2017, we entered an agreement with our co-president and corporate & business development officer, pursuant to which he will transition out of such position and will be available to provide services to us for the term of the agreement.  We expect to record a charge of approximately $6 million in the third quarter of 2017 in connection with the execution of this agreement.

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Acquisitions (Tables)

6 Months Ended

Jun. 30, 2017

ShippingEasy [Member]

Business Acquisition [Line Items]

Allocation of the Purchase Price

The total net purchase price for the ShippingEasy acquisition was allocated to the assets acquired and the liabilities assumed based on their fair values. The following table is the final allocation of the purchase price (in thousands, except years):

	Fair Value			Fair Value		Useful Life (In Years)		Weighted Average Estimated Useful Life (In Years)
Trade accounts receivable	$	1,194
Other assets		76
Property and equipment		40
Goodwill		40,953
Identifiable intangible assets:
Trade name				$	1,304		8
Developed technology					6,948		5
Customer relationships					6,316		5
Non-compete agreements					1,111		3 to 5
Total identifiable intangible assets		15,679							5
Accrued expenses and other liabilities		(707	)
Deferred revenue		(185	)
Deferred tax liability		(1,603	)
Total purchase price		55,447
Less: settlement of preexisting relationship (accounts receivable)		1,194
Purchase price, net of settlement	$	54, 253

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Commitments and Contingencies (Tables)

6 Months Ended

Jun. 30, 2017

Commitments and Contingencies [Abstract]

Future Minimum Lease Payment under Operating Leases

The following table is a schedule of our significant future contractual obligations and commercial commitments (other than debt commitments), which consist of future minimum lease payment under operating leases as of June 30, 2017 (in thousands):

Twelve Month Period Ending June 30,	Operating Lease Obligations
2018	$	3,931
2019		2,257
2020		1,386
2021		1,333
2022		232
Thereafter		—
Total	$	9,139

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Net Income per Share (Tables)

6 Months Ended

Jun. 30, 2017

Net Income per Share [Abstract]

Calculation of Basic and Diluted Net Income Per Share

The following table reconciles share amounts utilized to calculate basic and diluted net income per share (in thousands, except per share data):

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Net income	$	31,040	$	14,291	$	64,178	$	27,529
Basic - weighted average common shares		16,930		17,384		16,916		17,370
Diluted effect of common stock equivalents		1,195		808		1,231		1,058
Diluted - weighted average common shares		18,125		18,192		18,147		18,428
Earnings per share:
Basic	$	1.83	$	0.82	$	3.79	$	1.58
Diluted	$	1.71	$	0.79	$	3.54	$	1.49

Anti-dilutive Securities Excluded from Computation of Earnings Per Share

The calculation of dilutive shares excludes the effect of the following options that are considered anti-dilutive (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Anti-dilutive stock option shares		42		287		42		147

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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2017

Stock-Based Compensation [Abstract]

Stock-Based Compensation Expense

The following table sets forth the stock-based compensation expense that we recognized for the periods indicated (in thousands):

	Three Months Ended June 30,				Six Months Ended June 30,
	2017		2016		2017		2016
Stock-based compensation expense relating to:
Employee and director stock options	$	10,723	$	8,154	$	21,858	$	15,435
Employee stock purchases		245		263		477		498
Total stock-based compensation expense	$	10,968	$	8,417	$	22,335	$	15,933
Stock-based compensation expense relating to:
Cost of revenues	$	445	$	450	$	993	$	875
Sales and marketing		1,975		1,857		4,282		3,588
Research and development		2,221		1,425		4,717		2,780
General and administrative		6,327		4,685		12,343		8,690
Total stock-based compensation expense	$	10,968	$	8,417	$	22,335	$	15,933

Weighted Average Assumptions Used in Black-Scholes Valuation Model

The following are the weighted average assumptions used in the Black-Scholes valuation model for the periods indicated:

	Three Months Ended June 30,						Six Months Ended June 30,
	2017			2016			2017			2016
Expected dividend yield		—			—			—			—
Risk-free interest rate		1.5	%		1.0	%		1.5	%		1.0	%
Expected volatility		46.1	%		48.6	%		46.4	%		48.4	%
Expected life (in years)		3.4			3.4			3.4			3.4
Forfeiture rate		—			6.0	%		—			6.0	%

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Goodwill and Intangible Assets (Tables)

6 Months Ended

Jun. 30, 2017

Goodwill and Intangible Assets [Abstract]

Schedule of Acquired Intangible Assets

The following table summarizes our amortizable intangible assets as of June 30, 2017 (in thousands):

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Patents and Others	$	8,889	$	8,797	$	92
Customer Relationships		60,816		17,185		43,631
Technology		40,048		8,699		31,349
Non-Compete		2,211		1,029		1,182
Trademark		2,004		639		1,365
Total amortizable intangible assets at June 30, 2017	$	113,968	$	36,349	$	77,619

The following table summarizes our amortizable intangible assets as of December 31, 2016 (in thousands):

	Gross Carrying Amount		Accumulated Amortization		Net Carrying Amount
Patents and Others	$	8,889	$	8,774	$	115
Customer Relationships		60,816		12,199		48,617
Technology		40,048		6,100		33,948
Non-Compete		2,211		777		1,434
Trademark		2,004		479		1,525
Total amortizable intangible assets at December 31, 2016	$	113,968	$	28,329	$	85,639

Schedule of Future Amortization Expense

Our estimated amortization expense for the next five years and thereafter is as follows (in thousands):

Twelve Month Period Ending June 30,	Estimated Amortization Expense
2018	$	16,025
2019		15,667
2020		15,579
2021		15,231
2022		7,783
Thereafter		7,334
Total	$	77,619

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Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2017

Fair Value Measurements [Abstract]

Financial Assets Measured at Fair Value on a Recurring Basis

The following tables summarize our financial assets measured at fair value on a recurring basis as of June 30, 2017 and December 31, 2016, respectively (in thousands):

			Fair Value Measurement at Reporting Date Using
Description	June 30, 2017		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash and cash equivalents	$	110,343	$	110,343	$	—	$	—
Available-for-sale debt securities		—		—		—		—
Total	$	110,343	$	110,343	$	—	$	—

			Fair Value Measurement at Reporting Date Using
Description	December 31, 2016		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Cash and cash equivalents	$	106,932	$	106,932	$	—	$	—
Available-for-sale debt securities		1,511		—		1,511		—
Total	$	108,443	$	106,932	$	1,511	$	—

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Cash, Cash Equivalents and Investments (Tables)

6 Months Ended

Jun. 30, 2017

Cash, Cash Equivalents and Investments [Abstract]

Summary of Cash and Cash Equivalents and Investments

The following tables summarize our cash and cash equivalents and investments as of June 30, 2017 and December 31, 2016 (in thousands):

	June 30, 2017
	Cost or Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Cash and cash equivalents:
Cash	$	103,859		—		—		$	103,859
Money market		6,477		9		(2	)		6,484
Total cash and cash equivalents		110,336		9		(2	)		110,343
Short-term investments:
Corporate bonds and asset backed securities		—		—		—			—
Total short-term investments		—		—		—			—
Cash and cash equivalents and short-term investments	$	110,336		9		(2	)	$	110,343

	December 31, 2016
	Cost or Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses			Estimated Fair Value
Cash and cash equivalents:
Cash	$	101,987		—		—		$	101,987
Money market		4,945		—		—			4,945
Total cash and cash equivalents		106,932		—		—			106,932
Short-term investments:
Corporate bonds and asset backed securities		1,500		13		(2	)		1,511
Total short-term investments		1,500		13		(2	)		1,511
Cash and cash equivalents and short-term investments	$	108,432		13		(2	)	$	108,443

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Summary of Significant Accounting Policies, Principles of Consolidation (Details)	Jun. 30, 2017	Jul. 02, 2016
ShippingEasy [Member]
Principles of Consolidation [Abstract]
Percentage of outstanding equity purchased		100.00%
ShipStation [Member]
Principles of Consolidation [Abstract]
Percentage of voting control	100.00%
PhotoStamps Inc [Member]
Principles of Consolidation [Abstract]
Percentage of voting control	100.00%

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Summary of Significant Accounting Policies, Property, Plant and Equipment (Details)	6 Months Ended
	Jun. 30, 2017
Furniture, Fixtures and Equipment [Member] | Minimum [Member]
Property and Equipment [Abstract]
Estimated useful life	3 years
Furniture, Fixtures and Equipment [Member] | Maximum [Member]
Property and Equipment [Abstract]
Estimated useful life	5 years
Building and Building Improvements [Member] | Minimum [Member]
Property and Equipment [Abstract]
Estimated useful life	10 years
Building and Building Improvements [Member] | Maximum [Member]
Property and Equipment [Abstract]
Estimated useful life	40 years

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Summary of Significant Accounting Policies, Revenue Recognition through Subsequent Events (Details) $ in Millions	2 Months Ended	3 Months Ended		6 Months Ended
	Sep. 30, 2017 USD ($)	Jun. 30, 2017 USD ($) Criteria	Mar. 31, 2017 shares	Jun. 30, 2017 USD ($) Criteria shares	Jun. 30, 2016 USD ($) shares	Dec. 31, 2016 USD ($)
Revenue Recognition [Abstract]
Number of criteria to be met for recognition of revenue | Criteria		4		4
Short- Term Financing Obligation [Abstract]
Short-term financing obligation		$ 15.2		$ 15.2		$ 15.6
Unused credits		90.3		$ 90.3		$ 90.0
Treasury Stock [Abstract]
Stock repurchased during period, shares (in shares) | shares				730,000	335,000
Stock repurchased during period, amount				$ 87.9	$ 30.0
Recent Accounting Pronouncements [Abstract]
Provision for income taxes		5.7		18.3
Net cumulative-effect adjustment				2.1
Accrued employee taxes		$ 0.8		$ 0.8
Scenario, Forecast [Member]
Subsequent Event [Line Items]
Consulting expenses	$ 6.0
ShippingEasy [Member]
Equity, Class of Treasury Stock [Line Items]
Shares withheld to satisfy income tax obligations (in shares) | shares			6,670

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Acquisitions (Details)		3 Months Ended			6 Months Ended
	Jul. 02, 2016 USD ($) Employees shares	Jun. 30, 2017 USD ($)	Mar. 31, 2017 shares	Jun. 30, 2016 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2016 USD ($) shares	Jun. 30, 2016 USD ($)
Business Acquisition [Line Items]
Stock-based compensation expense		$ 10,968,000		$ 8,417,000	$ 22,335,000		$ 15,933,000
Purchase price [Abstract]
Cash consideration					0		573,000
Allocation of purchase price [Abstract]
Goodwill		239,705,000			239,705,000	$ 239,705,000
Identifiable Intangible Assets, Weighted Average Estimated Useful Life [Abstract]
Amortization of acquired intangible assets per quarter		4,000,000		$ 3,200,000	$ 8,000,000		$ 6,600,000
Maximum [Member]
Business Acquisition [Line Items]
Option vesting period					5 years
ShippingEasy [Member]
Business Acquisition [Line Items]
Percentage of voting interests acquired	100.00%
Earnings target percentage			100.00%			100.00%
Stock-based compensation expense		$ 1,200,000			$ 2,500,000	$ 1,900,000
Stock-based compensation expense (in shares) | shares						21,783
Stock-based compensation expense, percentage					50.00%	100.00%
Shares issued and distributed (in shares) | shares			15,113
Shares withheld to satisfy income tax obligations (in shares) | shares			6,670
Purchase price [Abstract]
Cash consideration	$ 55,000,000
Allocation of purchase price [Abstract]
Trade accounts receivable	1,194,000
Other assets	76,000
Property and equipment	40,000
Goodwill	40,953,000
Identifiable intangible assets	15,679,000
Accrued expenses and other liabilities	(707,000)
Deferred revenue	(185,000)
Deferred tax liability	(1,603,000)
Total purchase price	55,447,000
Less: settlement of preexisting relationship (accounts receivable)	1,194,000
Purchase price, net of settlement	$ 54,253,000
Identifiable Intangible Assets, Weighted Average Estimated Useful Life [Abstract]
Identifiable intangible assets, weighted average estimated useful life					5 years
Discount rate of net cash flows to their present values	23.00%
Amortization of acquired intangible assets per quarter	$ 761,000
ShippingEasy [Member] | Minimum [Member]
Business Acquisition [Line Items]
Percentage of awards subject to proration	75.00%
ShippingEasy [Member] | Trademark [Member]
Allocation of purchase price [Abstract]
Identifiable intangible assets	$ 1,304,000
Identifiable Intangible Assets, Weighted Average Estimated Useful Life [Abstract]
Identifiable intangible assets, weighted average estimated useful life					8 years
ShippingEasy [Member] | Developed Technology [Member]
Allocation of purchase price [Abstract]
Identifiable intangible assets	6,948,000
Identifiable Intangible Assets, Weighted Average Estimated Useful Life [Abstract]
Identifiable intangible assets, weighted average estimated useful life					5 years
ShippingEasy [Member] | Non-Compete Agreement [Member]
Allocation of purchase price [Abstract]
Identifiable intangible assets	1,111,000
ShippingEasy [Member] | Non-Compete Agreement [Member] | Minimum [Member]
Identifiable Intangible Assets, Weighted Average Estimated Useful Life [Abstract]
Identifiable intangible assets, weighted average estimated useful life					3 years
ShippingEasy [Member] | Non-Compete Agreement [Member] | Maximum [Member]
Identifiable Intangible Assets, Weighted Average Estimated Useful Life [Abstract]
Identifiable intangible assets, weighted average estimated useful life					5 years
ShippingEasy [Member] | Customer Relationships [Member]
Allocation of purchase price [Abstract]
Identifiable intangible assets	$ 6,316,000
Identifiable Intangible Assets, Weighted Average Estimated Useful Life [Abstract]
Identifiable intangible assets, weighted average estimated useful life					5 years
ShippingEasy [Member] | General Manager and Chief Technology Officer [Member]
Business Acquisition [Line Items]
Period of performance based inducement equity awards		2 years 6 months
ShippingEasy [Member] | General Manager and Chief Technology Officer [Member] | Maximum [Member]
Business Acquisition [Line Items]
Aggregate shares issued (in shares) | shares	43,567
ShippingEasy [Member] | New Employee [Member]
Business Acquisition [Line Items]
Aggregate shares issued (in shares) | shares	62,000
Shares granted for number of new employees | Employees	48
Vesting term					10 years
ShippingEasy [Member] | Vesting Option One [Member] | New Employee [Member]
Business Acquisition [Line Items]
Percentage of options vesting	25.00%
Option vesting period					1 year
ShippingEasy [Member] | Vesting Option Two [Member]
Business Acquisition [Line Items]
Percentage of options vesting	75.00%
Option vesting period					36 months

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Commitments and Contingencies (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Commitments and Contingencies [Abstract]
Rent expense	$ 900	$ 800	$ 1,900	$ 1,300
Future Minimum Lease Payment Under Operating Leases [Abstract]
2018	3,931		3,931
2019	2,257		2,257
2020	1,386		1,386
2021	1,333		1,333
2022	232		232
Thereafter	0		0
Total	$ 9,139		$ 9,139

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Net Income per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Computation of Basic and Diluted Net Income per Share [Abstract]
Net income	$ 31,040	$ 14,291	$ 64,178	$ 27,529
Basic - weighted average common shares (in shares)	16,930	17,384	16,916	17,370
Diluted effect of common stock equivalents (in shares)	1,195	808	1,231	1,058
Diluted - weighted average common shares (in shares)	18,125	18,192	18,147	18,428
Earnings per share [Abstract]
Basic (in dollars per share)	$ 1.83	$ 0.82	$ 3.79	$ 1.58
Diluted (in dollars per share)	$ 1.71	$ 0.79	$ 3.54	$ 1.49
Stock Options [Member]
Anti-dilutive Shares Excluded from Computation of Diluted Shares [Abstract]
Anti-dilutive stock option shares (in shares)	42	287	42	147

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Stock-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 10,968	$ 8,417	$ 22,335		$ 15,933
Weighted Average Assumptions used in Black-Scholes Valuation Model [Abstract]
Expected dividend yield	0.00%	0.00%	0.00%		0.00%
Risk-free interest rate	1.50%	1.00%	1.50%		1.00%
Expected volatility	46.10%	48.60%	46.40%		48.40%
Expected life	3 years 4 months 24 days	3 years 4 months 24 days	3 years 4 months 24 days		3 years 4 months 24 days
Forfeiture rate	0.00%	6.00%	0.00%		6.00%
ShippingEasy [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 1,200		$ 2,500	$ 1,900
Employee and Director Stock Options [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	10,723	$ 8,154	21,858		$ 15,435
Employee Stock Purchases [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	245	263	477		498
Cost of Revenues [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	445	450	993		875
Sales and Marketing [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	1,975	1,857	4,282		3,588
Research and Development [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	2,221	1,425	4,717		2,780
General and Administrative [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Stock-based compensation expense	$ 6,327	$ 4,685	$ 12,343		$ 8,690
Maximum [Member]
Employee Service Share-based Compensation, Allocation of Recognized Period Costs [Line Items]
Vesting period			5 years

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Goodwill and Intangible Assets (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Intangible Assets [Abstract]
Amortizable and non-amortizable intangible assets gross carrying amount	$ 125,400		$ 125,400		$ 125,400
Non-amortizable assets	11,400		11,400		11,400
Gross Carrying Amount	113,968		113,968		113,968
Accumulated Amortization	36,349		36,349		28,329
Total	77,619		77,619		85,639
Goodwill	239,705		239,705		239,705
Amortization of intangible assets	4,000	$ 3,200	$ 8,000	$ 6,600
Identifiable intangible assets, weighted average remaining useful life			5 years 1 month 6 days
Amortization Expense, Fiscal Year Maturity [Abstract]
2018	16,025		$ 16,025
2019	15,667		15,667
2020	15,579		15,579
2021	15,231		15,231
2022	7,783		7,783
Thereafter	7,334		7,334
Total	77,619		77,619		85,639
Patents and Others [Member]
Intangible Assets [Abstract]
Gross Carrying Amount	8,889		8,889		8,889
Accumulated Amortization	8,797		8,797		8,774
Total	92		92		115
Amortization Expense, Fiscal Year Maturity [Abstract]
Total	92		92		115
Customer Relationships [Member]
Intangible Assets [Abstract]
Gross Carrying Amount	60,816		60,816		60,816
Accumulated Amortization	17,185		17,185		12,199
Total	43,631		43,631		48,617
Amortization Expense, Fiscal Year Maturity [Abstract]
Total	43,631		43,631		48,617
Technology [Member]
Intangible Assets [Abstract]
Gross Carrying Amount	40,048		40,048		40,048
Accumulated Amortization	8,699		8,699		6,100
Total	31,349		31,349		33,948
Amortization Expense, Fiscal Year Maturity [Abstract]
Total	31,349		31,349		33,948
Non-Compete [Member]
Intangible Assets [Abstract]
Gross Carrying Amount	2,211		2,211		2,211
Accumulated Amortization	1,029		1,029		777
Total	1,182		1,182		1,434
Amortization Expense, Fiscal Year Maturity [Abstract]
Total	1,182		1,182		1,434
Trademark [Member]
Intangible Assets [Abstract]
Gross Carrying Amount	2,004		2,004		2,004
Accumulated Amortization	639		639		479
Total	1,365		1,365		1,525
Amortization Expense, Fiscal Year Maturity [Abstract]
Total	$ 1,365		$ 1,365		$ 1,525

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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Income Taxes [Abstract]
Income tax expense	$ 9,879	$ 9,802	$ 10,539	$ 17,911
Excess tax benefits recognized in income tax provision	5,700		18,300
Valuation allowance	$ 0		$ 0		$ 0

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Fair Value Measurements (Details) - Recurring [Member] - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Financial assets measured at fair value on a recurring basis [Abstract]
Cash and cash equivalents	$ 110,343	$ 106,932
Available-for-sale debt securities	0	1,511
Total	110,343	108,443
Quoted Prices in Active Markets for Identical Assets (Level 1) [Member]
Financial assets measured at fair value on a recurring basis [Abstract]
Cash and cash equivalents	110,343	106,932
Available-for-sale debt securities	0	0
Total	110,343	106,932
Significant Other Observable Inputs (Level 2) [Member]
Financial assets measured at fair value on a recurring basis [Abstract]
Cash and cash equivalents	0	0
Available-for-sale debt securities	0	1,511
Total	0	1,511
Significant Unobservable Inputs (Level 3) [Member]
Financial assets measured at fair value on a recurring basis [Abstract]
Cash and cash equivalents	0	0
Available-for-sale debt securities	0	0
Total	$ 0	$ 0

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Cash, Cash Equivalents and Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015
Cash and cash equivalents [Abstract]
Cost or Amortized Cost	$ 110,343	$ 106,932	$ 116,273	$ 65,126
Total Cash and Cash Equivalents [Member]
Cash and cash equivalents [Abstract]
Cost or Amortized Cost	110,336	106,932
Gross Unrealized Gains	9	0
Gross Unrealized Losses	(2)	0
Estimated Fair Value	110,343	106,932
Total Short-Term Investments [Member]
Cash and cash equivalents [Abstract]
Cost or Amortized Cost	0	1,500
Gross Unrealized Gains	0	13
Gross Unrealized Losses	0	(2)
Estimated Fair Value	0	1,511
Cash and Cash Equivalents and Short-term Investments [Member]
Cash and cash equivalents [Abstract]
Cost or Amortized Cost	110,336	108,432
Gross Unrealized Gains	9	13
Gross Unrealized Losses	(2)	(2)
Estimated Fair Value	110,343	108,443
Cash [Member] | Total Cash and Cash Equivalents [Member]
Cash and cash equivalents [Abstract]
Cost or Amortized Cost	103,859	101,987
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Estimated Fair Value	103,859	101,987
Money Market [Member] | Total Cash and Cash Equivalents [Member]
Cash and cash equivalents [Abstract]
Cost or Amortized Cost	6,477	4,945
Gross Unrealized Gains	9	0
Gross Unrealized Losses	(2)	0
Estimated Fair Value	6,484	4,945
Corporate Bonds and Asset Backed Securities [Member] | Total Short-Term Investments [Member]
Cash and cash equivalents [Abstract]
Cost or Amortized Cost	0	1,500
Gross Unrealized Gains	0	13
Gross Unrealized Losses	0	(2)
Estimated Fair Value	$ 0	$ 1,511