10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-Q

(Mark One)

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

For the quarterly period ended March 31, 2015

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:                    001-33236

POWERSHARES DB BASE METALS FUND

(A Series of PowerShares DB Multi-Sector Commodity Trust)

(Exact name of Registrant as specified in its charter)

Delaware	87-0778075
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)
c/o Invesco PowerShares Capital Management LLC 3500 Lacey Road, Suite 700 Downers Grove, Illinois	60515
(Address of Principal Executive Offices)	(Zip Code)

Registrant’s telephone number, including area code: (800) 983-0903

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

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

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

Large Accelerated Filer	¨	Accelerated Filer	x
Non-Accelerated Filer	¨ (Do not check if a smaller reporting company)	Smaller reporting company	¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  þ

Indicate the number of outstanding Shares as of March 31, 2015: 13,400,000 Shares.

POWERSHARES DB BASE METALS FUND

(A SERIES OF POWERSHARES DB MULTI-SECTOR COMMODITY TRUST)

QUARTER ENDED MARCH 31, 2015

TABLE OF CONTENTS

		Page
PART I.	FINANCIAL INFORMATION		1
ITEM 1.	FINANCIAL STATEMENTS.		1
	Notes to Unaudited Financial Statements		8
ITEM 2.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.		18
ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.		29
ITEM 4.	CONTROLS AND PROCEDURES.		31
PART II.	OTHER INFORMATION		31
Item 1.	Legal Proceedings.		31
Item 1A.	Risk Factors.		31
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds.		31
Item 3.	Defaults Upon Senior Securities.		32
Item 4.	Mine Safety Disclosures.		32
Item 5.	Other Information.		32
Item 6.	Exhibits.		34
SIGNATURES			35

i

PART I. FINANCIAL INFORMATION

ITEM 1. FINANCIAL STATEMENTS.

PowerShares DB Base Metals Fund

Statements of Financial Condition

March 31, 2015 and December 31, 2014

(Unaudited)

	March 31, 2015			December 31, 2014
Assets
United States Treasury Obligations, at fair value (cost $230,991,966 and $236,993,093, respectively)	$	230,992,371		$	236,994,724
Cash held by commodity broker		—			27,364,752
Cash held by custodian		57,715,989			—
Net unrealized appreciation (depreciation) on commodity futures contracts		(8,497,613	)		(13,474,175	)
Total assets (of which $43,497,187 and $18,366,219, respectively, is restricted for maintenance margin purposes)	$	280,210,747		$	250,885,301
Liabilities
Payable for LME contracts	$	6,386,880		$	7,104,250
Payable for securities purchased		69,995,134			22,997,987
Management fee payable		112,104			130,925
Brokerage fee payable		878			4,635
Total liabilities		76,494,996			30,237,797
Commitments and Contingencies (Note 9)
Equity
Shareholders’ equity—General Shares		608			640
Shareholders’ equity—Shares		203,715,143			220,646,864
Total shareholders’ equity		203,715,751			220,647,504
Total liabilities and equity	$	280,210,747		$	250,885,301
General Shares outstanding		40			40
Shares outstanding		13,400,000			13,800,000
Net asset value per share
General Shares	$	15.20		$	15.99
Shares	$	15.20		$	15.99

See accompanying Notes to Unaudited Financial Statements which are an integral part of the financial statements.

1

PowerShares DB Base Metals Fund

Schedule of Investments

March 31, 2015

(Unaudited)

Description	Percentage  of Shareholders’ Equity			Fair Value		Face Value
United States Treasury Obligations (a) (b)
U.S. Treasury Bills, 0.005% due April 2, 2015		11.29	%	$	23,000,000	$	23,000,000
U.S. Treasury Bills, 0.050% due April 16, 2015		3.93			8,000,000		8,000,000
U.S. Treasury Bills, 0.020% due April 23, 2015		4.42			8,999,946		9,000,000
U.S. Treasury Bills, 0.050% due April 30, 2015		14.23			28,999,246		29,000,000
U.S. Treasury Bills, 0.015% due May 7, 2015		25.53			51,999,064		52,000,000
U.S. Treasury Bills, 0.020% due May 14, 2015		7.36			14,999,640		15,000,000
U.S. Treasury Bills, 0.015% due June 11, 2015		12.27			24,999,375		25,000,000
U.S. Treasury Bills, 0.035% due July 2, 2015		34.36			69,995,100		70,000,000
Total United States Treasury Obligations (cost $230,991,966)		113.39	%	$	230,992,371

(a) Security traded on a discount basis. The interest rate shown represents the discount rate at the time of issuance of the security.

(b) A portion of United States treasury obligation on deposit with the commodity broker are held as margin for open future contracts. See Note 3 for additional information.

Description	Unrealized Appreciation/ (Depreciation) as a Percentage of Shareholders’ Equity			Unrealized Appreciation/ (Depreciation)(c)			Notional Market Value
Commodity Futures Contracts
LME Aluminum (1,464 contracts, settlement date October 19, 2015)		(4.40	)%	$	(8,966,300	)	$	66,172,800
LME Copper (454 contracts, settlement date June 15, 2015)		1.21			2,463,668			68,650,475
LME Zinc (1,310 contracts, settlement date February 15, 2016)		(0.98	)		(1,994,981	)		68,889,625
Total Commodity Futures Contracts		(4.17	)%	$	(8,497,613	)	$	203,712,900

(c) Unrealized appreciation/ (depreciation) is presented above, net by contract.

See accompanying Notes to Unaudited Financial Statements which are an integral part of the financial statements.

2

PowerShares DB Base Metals Fund

Schedule of Investments

December 31, 2014

(Unaudited)

Description	Percentage  of Shareholders’ Equity			Fair Value		Face Value
United States Treasury Obligations (a) (b)
U.S. Treasury Bills, 0.030% due January 2, 2015		10.42	%	$	23,000,000	$	23,000,000
U.S. Treasury Bills, 0.020% due January 15, 2015		3.63			7,999,944		8,000,000
U.S. Treasury Bills, 0.010% due January 22, 2015		18.13			39,999,440		40,000,000
U.S. Treasury Bills, 0.015% due January 29, 2015		21.30			46,999,295		47,000,000
U.S. Treasury Bills, 0.010% due February 5, 2015		23.57			51,999,012		52,000,000
U.S. Treasury Bills, 0.025% due February 12, 2015		10.88			23,999,664		24,000,000
U.S. Treasury Bills, 0.025% due March 12, 2015		1.36			2,999,886		3,000,000
U.S. Treasury Bills, 0.055% due March 26, 2015		7.70			16,999,507		17,000,000
U.S. Treasury Bills, 0.040% due April 2, 2015		10.42			22,997,976		23,000,000
Total United States Treasury Obligations (cost $236,993,093)		107.41	%	$	236,994,724

(a) Security traded on a discount basis. The interest rate shown represents the discount rate at the time of issuance of the security.

(b) A portion of United States treasury obligation on deposit with the commodity broker are held as margin for open future contracts. See Note 3 for additional information.

Description	Unrealized Appreciation/ (Depreciation) as a Percentage of Shareholders’ Equity			Unrealized Appreciation/ (Depreciation)(c)			Notional Market Value
Commodity Futures Contracts
LME Aluminum (1,605 contracts, settlement date October 19, 2015)		(4.44	)%	$	(9,797,319	)	$	75,665,719
LME Copper (494 contracts, settlement date February 16, 2015)		(0.61	)		(1,336,762	)		78,138,450
LME Zinc (1,467 contracts, settlement date February 16, 2015)		(1.06	)		(2,340,094	)		79,630,594
Total Commodity Futures Contracts		(6.11	)%	$	(13,474,175	)	$	233,434,763

(c) Unrealized appreciation/ (depreciation) is presented above, net by contract.

See accompanying Notes to Unaudited Financial Statements which are an integral part of the financial statements.

3

PowerShares DB Base Metals Fund

Statements of Income and Expenses

For the Three Months Ended March 31, 2015 and 2014

(Unaudited)

	Three Months Ended
	March 31, 2015			March 31, 2014
Income
Interest Income	$	8,980		$	29,815
Expenses
Management Fee		332,543			500,509
Brokerage Commissions and Fees		30,186			15,020
Total expenses		362,729			515,529
Net investment income (loss)		(353,749	)		(485,714	)
Net Realized and Net Change in Unrealized Gain (Loss) on U.S. Treasury Obligations and Commodity Futures Contracts
Net Realized Gain (Loss) on
United States Treasury Obligations		185			210
Commodity Futures Contracts		(14,326,530	)		(12,668,256	)
Net realized gain (loss)		(14,326,345	)		(12,668,046	)
Net Change in Unrealized Gain (Loss) on
United States Treasury Obligations		(1,226	)		1,600
Commodity Futures Contracts		4,976,562			(2,812,750	)
Net change in unrealized gain (loss)		4,975,336			(2,811,150	)
Net realized and net change in unrealized gain (loss) on United States Treasury Obligations and Commodity Futures Contracts		(9,351,009	)		(15,479,196	)
Net Income (Loss)	$	(9,704,758	)	$	(15,964,910	)

See accompanying Notes to Unaudited Financial Statements which are an integral part of the financial statements.

4

PowerShares DB Base Metals Fund

Statement of Changes in Shareholders’ Equity

For the Three Months Ended March 31, 2015

(Unaudited)

	General Shares					Shares
	Shares		Total Equity			Shares			Total Equity			Total Shareholders’ Equity
Balance at January 01, 2015		40	$	640			13,800,000		$	220,646,864		$	220,647,504
Sale of Shares							3,000,000			44,894,499			44,894,499
Redemption of Shares							(3,400,000	)		(52,121,494	)		(52,121,494	)
Net Increase (Decrease) due to Share Transactions							(400,000	)		(7,226,995	)		(7,226,995	)
Net Income (Loss)
Net investment income (loss)				(1	)					(353,748	)		(353,749	)
Net realized gain (loss) on United States Treasury Obligations and Commodity Futures Contracts				(47	)					(14,326,298	)		(14,326,345	)
Net change in unrealized gain (loss) on United States Treasury Obligations and Commodity Futures Contracts				16						4,975,320			4,975,336
Net Income (Loss)				(32	)					(9,704,726	)		(9,704,758	)
Net Change in Shareholders’ Equity		—		(32	)		(400,000	)		(16,931,721	)		(16,931,753	)
Balance at March 31, 2015		40	$	608			13,400,000		$	203,715,143		$	203,715,751

See accompanying Notes to Unaudited Financial Statements which are an integral part of the financial statements.

5

PowerShares DB Base Metals Fund

Statement of Changes in Shareholders’ Equity

For the Three Months Ended March 31, 2014

(Unaudited)

	General Shares					Shares
	Shares		Total Equity			Shares			Total Equity			Total Shareholders’ Equity
Balance at January 01, 2014		40	$	671			14,000,000		$	234,894,398		$	234,895,069
Sale of Shares							6,400,000			104,645,950			104,645,950
Redemption of Shares							(1,200,000	)		(19,268,532	)		(19,268,532	)
Net Increase (Decrease) due to Share Transactions							5,200,000			85,377,418			85,377,418
Net Income (Loss)
Net investment income (loss)				(1	)					(485,713	)		(485,714	)
Net realized gain (loss) on United States Treasury Obligations and Commodity Futures Contracts				(29	)					(12,668,017	)		(12,668,046	)
Net change in unrealized gain (loss) on United States Treasury Obligations and Commodity Futures Contracts				(7	)					(2,811,143	)		(2,811,150	)
Net Income (Loss)				(37	)					(15,964,873	)		(15,964,910	)
Net Change in Shareholders’ Equity		—		(37	)		5,200,000			69,412,545			69,412,508
Balance at March 31, 2014		40	$	634			19,200,000		$	304,306,943		$	304,307,577

See accompanying Notes to Unaudited Financial Statements which are an integral part of the financial statements.

6

PowerShares DB Base Metals Fund

Statements of Cash Flows

For the Three Months Ended March 31, 2015 and 2014

(Unaudited)

	Three Months Ended
	March 31, 2015			March 31, 2014
Cash flow from operating activities:
Net Income (Loss)	$	(9,704,758	)	$	(15,964,910	)
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities:
Cost of securities purchased		(160,991,154	)		(293,969,161	)
Proceeds from securities sold and matured		213,999,868			224,998,818
Net accretion of discount on United States Treasury Obligations		(10,255	)		(31,048	)
Net realized (gain) loss on United States Treasury Obligations		(185	)		(210	)
Net change in unrealized (gain) loss on United States Treasury Obligations and Commodity Futures Contracts		(4,975,336	)		2,811,150
Change in operating receivables and liabilities:
Payable for LME contracts		(717,370	)		(7,076,125	)
Management fee payable		(18,821	)		40,298
Brokerage fee payable		(3,757	)		415
Net cash provided by (used for) operating activities		37,578,232			(89,190,773	)
Cash flows from financing activities:
Proceeds from sale of Shares		44,894,499			104,645,950
Redemption of Shares		(52,121,494	)		(19,268,532	)
Net cash provided by (used for) financing activities		(7,226,995	)		85,377,418
Net change in cash		30,351,237			(3,813,355	)
Cash at beginning of period(a)		27,364,752			24,778,734
Cash at end of period(b)	$	57,715,989		$	20,965,379

(a) Cash at December 31, 2014 and prior reflects cash held by the Predecessor Commodity Broker.

(b) Cash at March 31, 2015 reflects cash held by the Custodian.

See accompanying Notes to Unaudited Financial Statements, which are an integral part of the financial statements.

7

PowerShares DB Base Metals Fund

Notes to Unaudited Financial Statements

March 31, 2015

(1) Background

On October 24, 2014, DB Commodity Services LLC, a Delaware limited liability company (“DBCS”), DB U.S. Financial Markets Holding Corporation (“DBUSH”) and Invesco PowerShares Capital Management LLC (“Invesco”) entered into an Asset Purchase Agreement (the “Agreement”). DBCS is a wholly-owned subsidiary of DBUSH. DBCS agreed to transfer and sell to Invesco all of DBCS’ interest in PowerShares DB Base Metals Fund (the “Fund”), a separate series of PowerShares DB Multi-Sector Commodity Trust (the “Trust”), a Delaware statutory trust organized in seven separate series, including the sole and exclusive power to direct the business and affairs of the Trust and the Fund, as well as certain other assets pertaining to the management of the Trust and the Fund, pursuant to the terms and conditions of the Agreement (the “Transaction”).

The Transaction was consummated on February 23, 2015 (the “Closing Date”). Invesco now serves as the managing owner (the “Managing Owner”), commodity pool operator and commodity trading advisor of the Trust and the Fund, in replacement of DBCS (the “Predecessor Managing Owner”).

(2) Organization

The Fund is a separate series of the Trust. The Trust is a Delaware statutory trust organized in seven separate series and was formed on August 3, 2006. The Predecessor Managing Owner seeded the Fund with a capital contribution of $1,000 in exchange for 40 General Shares of the Fund. The General Shares were sold to the Managing Owner by the Predecessor Managing Owner pursuant to the terms of the Agreement. The fiscal year end of the Fund is December 31st. The term of the Fund is perpetual (unless terminated earlier in certain circumstances) as provided for in the Fifth Amended and Restated Declaration of Trust and Trust Agreement of the Trust (the “Trust Agreement”). The Fourth Amended and Restated Declaration of Trust and Trust Agreement of the Trust dated November 12, 2012 was effective for purposes of the reporting period up to and excluding the Closing Date. The fund has an unlimited number of shares authorized for issuance.

The Fund offers common units of beneficial interest (the “Shares”) only to certain eligible financial institutions (the “Authorized Participants”) in one or more blocks of 200,000 Shares, called a Basket. The proceeds from the offering of Shares are invested in the Fund. The Fund commenced investment operations on January 3, 2007. The Fund commenced trading on the American Stock Exchange (which became the NYSE Alternext US LLC (the “NYSE Alternext”)) on January 5, 2007 and, as of November 25, 2008, is listed on the NYSE Arca, Inc. (the “NYSE Arca”).

This Report covers the three months ended March 31, 2015 and 2014 (hereinafter referred to as the “Three Months Ended March 31, 2015” and the “Three Months Ended March 31, 2014”, respectively). The Fund’s performance information from inception up to and excluding the Closing Date is a reflection of the performance associated with the Predecessor Managing Owner. The Managing Owner has served as managing owner of the Fund since the Closing Date, and the Fund’s performance information since the Closing Date is a reflection of the performance associated with the Managing Owner. Past performance of the Fund is not necessarily indicative of future performance.

The accompanying unaudited financial statements were prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions for Form 10-Q and the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”). In the opinion of management, all material adjustments, consisting only of normal recurring adjustments, considered necessary for a fair statement of the interim period financial statements have been made. Interim period results are not necessarily indicative of results for a full-year period. These financial statements and the notes thereto should be read in conjunction with the Fund’s financial statements included in its Annual Report on Form 10-K for the year ended December 31, 2014 as filed with the SEC on March 9, 2015.

(3) Fund Investment Overview

The Fund invests with a view to tracking the changes, whether positive or negative, in the level of the DBIQ Optimum Yield Industrial Metals Index Excess Return™ (the “Index”) over time, plus the excess, if any, of the Fund’s interest income from its holdings of United States Treasury Obligations and other high credit quality short-term fixed income securities over the expenses of the Fund.

The Index is intended to reflect the change in market value of the base metals sector. The commodities comprising the Index are aluminum, zinc and copper—Grade A (each an “Index Commodity”, and collectively, the “Index Commodities”).

The Fund also holds United States Treasury Obligations and other high credit quality short-term fixed income securities for deposit with the Fund’s commodity broker as margin.

8

PowerShares DB Base Metals Fund

Notes to Unaudited Financial Statements—(Continued)

March 31, 2015

The Index Commodities are currently trading on the London Metals Exchange (the “LME”). Although the LME does not currently impose position limits on the Index Commodities, the LME may in the future impose position limits on market participants trading in certain commodities included in the Index. Further, in the event the Fund invests in alternative commodity futures contracts as described below, that trade on a U.S. exchange, the Commodity Futures Trading Commission (the “CFTC”) and commodity exchanges may impose position limits on market participants trading in the commodities futures contracts included in the Index. The Index is comprised of commodity futures contracts on the Index Commodities that expire in a specific month and trade on a specific exchange (the “Index Contracts”). As disclosed in the Prospectus, if the Managing Owner determines in its commercially reasonable judgment that it has become impracticable or inefficient for any reason for the Fund to gain full or partial exposure to any Index Commodity by investing in a specific Index Contract, the Fund may invest in a commodities futures contract referencing the particular Index Commodity other than the Index Contract or, in the alternative, invest in other commodities futures contracts not based on the particular Index Commodity if, in the commercially reasonable judgment of the Managing Owner, such commodities futures contracts tend to exhibit trading prices that correlate with such Index Commodity.

The Fund holds United States Treasury Obligations for deposit with the Fund’s Commodity Broker as margin. The Fund does not borrow money to increase leverage. As of March 31, 2015 and December 31, 2014, the Fund had $43,497,187 (or 15.52% of its total assets) and $250,885,301 (or 100% of its total assets), respectively, of its holdings of cash, United States Treasury Obligations and unrealized appreciation/depreciation on commodities futures contracts on deposit with its Commodity Broker (as defined below) or its Predecessor Commodity Broker (as defined below), as applicable. Of this, $43,497,187 (or 15.52%) and $18,366,219 (or 7.3%) are required to be deposited to satisfy maintenance margin required by the Commodity Broker for the Fund’s long futures positions as of March 31, 2015 and December 31, 2014, respectively. For additional information, please see the unaudited Schedule of Investments as of March 31, 2015 and December 31, 2014 for details of the Fund’s portfolio holdings.

(4) Service Providers and Related Party Agreements

The Trustee

Under the Trust Agreement, Wilmington Trust Company, the trustee of the Fund (the “Trustee”), has delegated to the Managing Owner the exclusive management and control of all aspects of the business of the Trust and the Fund. The Trustee will have no duty or liability to supervise or monitor the performance of the Managing Owner, nor will the Trustee have any liability for the acts or omissions of the Managing Owner.

The Managing Owner

The Managing Owner serves as the Fund’s commodity pool operator, commodity trading advisor and managing owner. The Fund pays the Managing Owner a management fee, monthly in arrears, in an amount equal to 0.75% per annum of the daily net asset value of the Fund. For purposes of the reporting period up to and excluding the Closing Date, all Management Fees were payable to the Predecessor Managing Owner (the “Management Fee”). The Managing Owner has served as managing owner of the Fund since the Closing Date and all Management Fee accruals since the Closing Date have been paid to the Managing Owner.

During the Three Months Ended March 31, 2015 and 2014, the Fund incurred Management Fees of $332,543 and $500,509, respectively. As of March 31, 2015 and December 31, 2014, Management Fees payable were $112,104 and $130,925, respectively.

The Commodity Broker

Effective as of the Closing Date, Morgan Stanley & Co. LLC, a Delaware limited liability company, serves as the Fund’s futures clearing broker (the “Commodity Broker”). Deutsche Bank Securities Inc. (“DBSI”), a Delaware corporation, served as the Fund’s futures clearing broker up to and excluding the Closing Date (the “Predecessor Commodity Broker”). DBSI is also an indirect wholly-owned subsidiary of Deutsche Bank AG and is an affiliate of the Predecessor Managing Owner. A variety of executing brokers execute futures transactions on behalf of the Fund. Such executing brokers give-up all such transactions to the commodity broker. In its capacity as clearing broker, the Commodity Broker may execute or receive transactions executed by others and clears all of the Fund’s futures transactions and performs certain administrative and custodial services for the Fund. The Commodity Broker is responsible, among other things, for providing periodic accountings of all dealings and actions taken by the Trust on behalf of the Fund during the reporting period, together with an accounting of all securities, cash or other indebtedness or obligations held by it or its nominees for or on behalf of the Fund. During the Three Months Ended March 31, 2015 and 2014, the Fund incurred brokerage fees of $30,186 and $15,020, respectively. As of March 31, 2015 and December 31, 2014, brokerage fees payable were $878 and $4,635, respectively. For the avoidance of doubt, for purposes of the reporting period up to and excluding the Closing Date, commission payments were paid to the Predecessor Commodity Broker. The Commodity Broker has served as the Fund’s futures clearing broker since the Closing Date and all commission accruals since the Closing Date have been paid to the Commodity Broker.

9

PowerShares DB Base Metals Fund

Notes to Unaudited Financial Statements—(Continued)

March 31, 2015

The Administrator, Custodian and Transfer Agent

The Bank of New York Mellon (the “Administrator” and “Custodian”) is the administrator, custodian and transfer agent of the Fund, and has entered into separate administrative, custodian, transfer agency and service agreements (collectively referred to as the “Administration Agreement”).

Pursuant to the Administration Agreement, the Administrator performs or supervises the performance of services necessary for the operation and administration of the Fund (other than making investment decisions), including receiving and processing orders from Authorized Participants to create and redeem Baskets, net asset value calculations, accounting and other fund administrative services. The Administrator retains certain financial books and records, including: Basket creation and redemption books and records, fund accounting records, ledgers with respect to assets, liabilities, capital, income and expenses, the registrar, transfer journals and related details, and trading and related documents received from the Commodity Broker and other unaffiliated futures commission merchants.

As of December 31, 2014, the Fund held $27,364,752 of cash and $236,994,724 of United States Treasury Obligations at the Predecessor Commodity Broker. In conjunction with the Transaction, during the three-day period from February 24, 2015 to February 26, 2015, the Fund transferred $31,802,760 of cash and $155,996,427 of United States Treasury Obligations from the Predecessor Commodity Broker to the Custodian. Additionally, during that same three-day period, the Fund transferred all of its open positions of commodity futures contracts from the Predecessor Commodity Broker to the Commodity Broker and $51,994,800 of United States Treasury Obligations from the Custodian to the Commodity Broker to satisfy maintenance margin requirements.

As of March 31, 2015, the Fund had $236,713,560 (or 84.48% of total assets) of its holdings of cash and United States Treasury Obligations held with its Custodian. No assets were held at the Custodian on December 31, 2014.

The Managing Owner pays the Administrator administrative services fees out of the Management Fee.

The Distributor

ALPS Distributors, Inc. (the “Distributor”) provides certain distribution services to the Fund. Pursuant to the Distribution Services Agreement among the Managing Owner in its capacity as managing owner of the Fund and the Distributor, the Distributor assists the Managing Owner and the Administrator with certain functions and duties relating to distribution and marketing services to the Fund including reviewing and approving marketing materials.

The Managing Owner pays the Distributor a distribution fee out of the Management Fee.

Index Sponsor

Effective as of the Closing Date, the Managing Owner, on behalf of the Fund, has appointed Deutsche Bank Securities Inc. to serve as the index sponsor (the “Index Sponsor”). Prior to the Closing Date, the index sponsor was Deutsche Bank AG London. The Index Sponsor calculates and publishes the daily index levels and the indicative intraday index levels. Additionally, the Index Sponsor also calculates the indicative value per Share of the Fund throughout each Business Day.

The Managing Owner pays the Index Sponsor a licensing fee and an index services fee out of the Management Fee for performing its duties.

Marketing Agent

Effective as of the Closing Date, the Managing Owner, on behalf of the Fund, has appointed Deutsche Bank Securities Inc. as the marketing agent (the “Marketing Agent”) to assist the Managing Owner by providing support to educate institutional investors about the Deutsche Bank indices and to complete governmental or institutional due diligence questionnaires or requests for proposals related to the Deutsche Bank indices.

The Managing Owner pays the Marketing Agent a marketing services fee out of the Management Fee.

The Marketing Agent will not open or maintain customer accounts or handle orders for the Fund. The Marketing Agent has no responsibility for the performance of the Fund or the decisions made or actions taken by the Managing Owner.

(5) Summary of Significant Accounting Policies

(a) Basis of Presentation

The Fund has determined that it meets the definition of an investment company and has prepared the unaudited financial statements in conformity with U.S. GAAP for investment companies in conformity with accounting and reporting guidance of the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification Topic 946—Investment Companies.

In August 2014, the FASB issued a new standard, Accounting Standards Update No. 2014-15 Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern, which will explicitly require management to assess an entity’s ability to

10

PowerShares DB Base Metals Fund

Notes to Unaudited Financial Statements—(Continued)

March 31, 2015

continue as a going concern and to provide related footnote disclosure in certain circumstances. This new guidance is effective for all entities in the first annual reporting period ending after December 15, 2016. The Fund is currently evaluating this guidance and its impact on the Fund’s financial statement disclosures.

(b) Use of Estimates

The preparation of the financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses and related disclosure of contingent assets and liabilities during the reporting period of the financial statements and accompanying notes. Actual results could differ from those estimates. There were no significant estimates used in the preparation of these financial statements.

(c) Financial Instruments and Fair Value

United States Treasury Obligations and commodity futures contracts are recorded in the statements of financial condition on a trade date basis at fair value with changes in fair value recognized in earnings in each period. U.S. GAAP defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, under current market conditions.

U.S. GAAP establishes a hierarchy that prioritizes the inputs to valuation methods, giving the highest priority to readily available unadjusted quoted prices in an active market for identical assets (Level 1) and the lowest priority to significant unobservable inputs (Level 3), generally when market prices are not readily available or are unreliable. Based on the valuation inputs, the securities or other investments are tiered into one of three levels. Changes in valuation methods or market conditions may result in transfers in or out of an investment’s assigned level:

Level 1—Prices are determined using quoted prices in an active market for identical assets.

Level 2—Prices are determined using other significant observable inputs. Observable inputs are inputs that other market participants may use in pricing a security. These may include quoted prices for similar securities, interest rates, prepayment speeds, credit risk, yield curves, loss severities, default rates, discount rates, volatilities and others.

Level 3—Prices are determined using significant unobservable inputs. In situations where quoted prices or observable inputs are unavailable (for example, when there is little or no market activity for an investment at the end of the period), unobservable inputs may be used. Unobservable inputs reflect the Fund’s own assumptions about the factors market participants would use in determining fair value of the securities or instruments and would be based on the best available information.

The levels assigned to the securities valuations may not be an indication of the risk or liquidity associated with investing in those securities. Because of the inherent uncertainties of valuation, the values reflected in the financial statements may materially differ from the value received upon actual sale of those investments.

The following is a summary of the tiered valuation input levels as of March 31, 2015:

	Level 1			Level 2		Level 3		Total
United States Treasury Obligations	$	—		$	230,992,371	$	—	$	230,992,371
Commodity Futures Contracts(a)	$	(8,497,613	)	$	—	$	—	$	(8,497,613	)

(a) Unrealized appreciation (depreciation).

The Fund’s policy is to recognize transfers in and out of the valuation levels as of the end of the reporting period. Effective on the Closing Date, the Fund revised certain policies with respect to level classification. As a result, United States Treasury Obligations were transferred from Level 1 to Level 2 and LME commodity futures contracts were transferred from Level 2 to Level 1. Treasury Obligations of $23,000,000 were transferred from Level 1 to Level 2 during the period. LME commodity futures contracts of $(8,966,300) were transferred from Level 2 to Level 1 during the period.

The following is a summary of the tiered valuation input levels as of December 31, 2014:

	Level 1		Level 2			Level 3		Total
United States Treasury Obligations	$	236,994,724	$	—		$	—	$	236,994,724
Commodity Futures Contracts(a)	$	—	$	(13,474,175	)	$	—	$	(13,474,175	)

(a) Unrealized appreciation (depreciation).

11

PowerShares DB Base Metals Fund

Notes to Unaudited Financial Statements—(Continued)

March 31, 2015

(d) Deposits with Commodity Broker

The Fund deposits cash and United States Treasury Obligations with its Commodity Broker subject to CFTC regulations and various exchange and broker requirements. The combination of the Fund’s deposits with its Commodity Broker of cash and United States Treasury Obligations and the unrealized profit or loss on open commodity futures contracts (variation margin) represents the Fund’s overall equity in its broker trading account. To meet the Fund’s initial margin requirements, the Fund holds United States Treasury Obligations. The Fund uses its cash held by the Commodity Broker to satisfy variation margin requirements. The Fund earns interest on its cash deposited with the Commodity Broker.

(e) Deposits with Custodian

The combination of the Fund’s deposits with its Custodian of cash and United States Treasury Obligations represents the Fund’s overall assets held with its Custodian.

(f) United States Treasury Obligations

The Fund records purchases and sales of United States Treasury Obligations on a trade date basis. These holdings are marked to market based on quoted market closing prices. The Fund holds United States Treasury Obligations for deposit with the Fund’s Commodity Broker to meet margin requirements and for trading purposes. Interest income is recognized on an accrual basis when earned. Premiums and discounts are amortized or accreted in interest income over the life of the United States Treasury Obligations. The Fund purchased $70,000,000 face amount of United States Treasury Obligations valued at $69,995,134 which was recorded as a payable for securities purchased as of March 31, 2015. The Fund purchased $23,000,000 face amount of United States Treasury Obligations valued at $22,997,987 which was recorded as a payable for securities purchased as of December 31, 2014.

(g) Cash Held by Commodity Broker

The Fund’s arrangement with the Commodity Broker requires the Fund to meet its variation margin requirement related to the price movements, both positive and negative, on commodity futures contracts held by the Fund by keeping cash on deposit with the Commodity Broker. The Fund assesses its variation margin on a daily basis and additional cash required to satisfy the variation margin requirement is transferred from the Custodian to the Commodity Broker at the close of business each day. Effective February 24, 2015, only the current day’s variation margin receivable or payable is disclosed as an asset or liability on the Statement of Financial Condition. The Fund defines cash and cash equivalents to be highly liquid investments, with original maturities of three months or less when purchased. As of December 31, 2014, the Fund had cash held with the Predecessor Commodity Broker of $27,364,752, which was on deposit to satisfy the Fund’s variation margin requirement on open commodity futures contracts. There was no cash held with the Commodity Broker at March 31, 2015. There were no cash equivalents held by the Fund as of March 31, 2015 and December 31, 2014.

(h) Receivable/(Payable) for LME Contracts

The Fund trades aluminum, copper and zinc commodity future contracts on the London Metals Exchange (“LME”). For settlement of commodity futures contracts traded on the LME, cash is not transferred until the settled commodity futures contracts expire. As of March 31, 2015, the Fund had a payable to the Commodity Broker of $6,386,880 related to net realized losses on LME contracts, which have been closed out but the contract is not yet expired. As of December 31, 2014, the Fund had a payable to the Predecessor Commodity Broker for contracts on the LME of $7,104,250 related to net realized losses on LME contracts.

(i) Receivable/(Payable) for Shares Issued and Redeemed

On any business day, an Authorized Participant may place an order to create or redeem Shares of the Fund. Cash settlement occurs at the creation order settlement date or the redemption order settlement date as discussed in Note 7.

12

PowerShares DB Base Metals Fund

Notes to Unaudited Financial Statements—(Continued)

March 31, 2015

(j) Income Taxes

The Fund is classified as a partnership for U.S. federal income tax purposes. Accordingly, the Fund will not incur U.S. federal income taxes. No provision for federal, state, and local income taxes has been made in the accompanying financial statements, as investors are individually liable for income taxes, if any, on their allocable share of the Fund’s income, gain, loss, deductions and other items.

The Managing Owner has reviewed all of the Fund’s open tax years and major jurisdictions and concluded that there is no tax liability resulting from unrecognized tax benefits relating to uncertain income tax positions taken or expected to be taken in future tax returns. The Fund is also not aware of any tax positions for which it is reasonably possible that the total amounts of unrecognized tax benefits will significantly change in the next twelve months. On an ongoing basis, management will monitor its tax positions taken under the interpretation (and consult with its tax counsel from time to time when appropriate) to determine if adjustments to conclusions are necessary based on factoring including, but not limited to, on-going analysis of tax law, regulation, and interpretations thereof. The major tax jurisdiction for the Fund and the earliest tax year subject to examination: United States, 2011.

(k) Commodity Futures Contracts

All commodity futures contracts are held and used for trading purposes. Commodity futures contracts are recorded on trade date basis and open contracts are recorded in the statement of financial condition at fair value on the last business day of the period, which represents market value for those commodity futures contracts for which market quotes are readily available. However, when market closing prices are not available, the Managing Owner may value an asset of the Fund pursuant to policies the Managing Owner has adopted, which are consistent with normal industry standards. Realized gains (losses) and changes in unrealized appreciation (depreciation) on open positions are determined on a specific identification basis and recognized in the statement of income and expenses in the period in which the contract is closed or the changes occur, respectively.

The Value of Derivative Instruments is as follows:

	March 31, 2015						December 31, 2014
Risk Exposure/Derivative Type	Assets			Liabilities			Assets		Liabilities
Commodity risk
Commodity Futures Contracts	$	2,463,668	(a)	$	(10,961,281	)(a)	$	—	$	(13,474,175	)(b)

(a) Includes cumulative appreciation (depreciation) of commodity futures contracts. Only current day’s variation margin receivable (payable) is reported in the March 31, 2015 Statement of Financial Condition.

(b) Values are disclosed on the December 31, 2014 Statement of Financial Condition under Net Unrealized appreciation (depreciation) on commodity futures contracts.

The Effect of Derivative Instruments on the Statements of Income and Expenses is as follows:

Risk Exposure/Derivative Type	Location of Gain or (Loss) on Derivatives Recognized in Income	For the Three Months Ended March 31, 2015			For the Three Months Ended March 31, 2014
Commodity risk
Commodity Futures Contracts	Net Realized Gain (Loss)	$	(14,326,530	)	$	(12,668,256	)
	Net Change in Unrealized Gain (Loss)		4,976,562			(2,812,750	)
Total		$	(9,349,968	)	$	(15,481,006	)

The brokerage agreement with the Commodity Broker provides for the net settlement of all financial instruments covered by the agreement in the event of default or termination of any one contract. The Managing Owner will utilize the cash held at the Commodity Broker to offset any realized losses incurred in the commodity futures contracts, if available. To the extent that cash held at the Commodity Broker is not adequate to cover any realized losses, a portion of the United States Treasury Obligations will be sold to make additional cash available. The table below summarizes the average monthly notional value of commodity futures contracts outstanding during the period:

	Commodity Futures Contracts
	Three Months Ended
	March 31, 2015		March 31, 2014
Average Notional Value	$	197,433,170	$	285,743,069

13

PowerShares DB Base Metals Fund

Notes to Unaudited Financial Statements—(Continued)

March 31, 2015

The Fund utilizes derivative instruments to achieve its investment objective. For financial reporting purposes, the Fund offsets financial assets and financial liabilities that are subject to netting arrangements. In order for an arrangement to be eligible for netting, the Fund must have a basis to conclude that such netting arrangements are legally enforceable. The following table presents derivative instruments that are either subject to an enforceable netting agreement or offset by collateral arrangements as of March 31, 2015, net by contract:

										Gross Amounts Not Offset in the Statement of Financial Condition
	Gross Amounts Recognized(a)			Gross Amounts Offset in the Statement of Financial Condition			Net Amounts Presented in the Statement of Financial Condition			Financial Instruments(b)		Cash Collateral Pledged(b)		Net Amount
Assets
Commodity Futures Contracts	$	2,463,668		$	(2,463,668	)	$	—		$	—	$	—	$	—
Liabilities
Commodity Futures Contracts	$	(10,961,281	)	$	2,463,668		$	(8,497,613	)	$	8,497,613	$	—	$	—

The following table presents derivative instruments that are either subject to an enforceable netting agreement or offset by collateral arrangements as of December 31, 2014 net by contract:

									Gross Amounts Not Offset in the Statement of Financial Condition
	Gross Amounts Recognized(a)			Gross Amounts Offset in the Statement of Financial Condition		Net Amounts Presented in the Statement of Financial Condition			Financial Instruments(b)		Cash Collateral Pledged(b)		Net Amount
Liabilities
Commodity Futures Contracts	$	(13,474,175	)	$	—	$	(13,474,175	)	$	—	$	13,474,175	$	—

(a) Includes cumulative appreciation (depreciation) of futures contracts.

(b) As of March 31, 2015 and December 31, 2014, a portion of the Fund’s cash and US Treasury Obligations were required to be deposited as margin in support of the Fund’s futures positions as described in Note 3.

(l) Brokerage Commissions and Fees

The Fund incurs all brokerage commissions, including applicable exchange fees, National Futures Association (“NFA”) fees, give-up fees, pit brokerage fees and other transaction related fees and expenses charged in connection with trading activities by the Commodity Broker. These costs are recorded as brokerage commissions and fees in the statement of income and expenses as incurred. The Commodity Broker’s brokerage commissions and trading fees are determined on a contract-by-contract basis. On average, total charges paid to the Commodity Broker and the Predecessor Commodity Broker, as applicable, were less than $19.00 and $10.00 per round-turn trade for the Three Months Ended March 31, 2015 and 2014, respectively.

(m) Routine Operational, Administrative and Other Ordinary Expenses

The Managing Owner assumes all routine operational, administrative and other ordinary expenses of the Fund, including, but not limited to, computer services, the fees and expenses of the Trustee, legal and accounting fees and expenses, tax preparation expenses, filing fees and printing, mailing and duplication costs. Prior to the Closing Date, the Predecessor Managing Owner assumed all routine operational, administrative and other ordinary expenses of the Fund. Accordingly, all such expenses are not reflected in the statement of income and expenses of the Fund.

(n) Organizational and Offering Costs

Prior to the Closing Date, all organizational and offering expenses (including continuous offering expenses for the offering of the Shares) incurred by the Fund were assumed by either the Predecessor Managing Owner or the Managing Owner. The Fund is not responsible to either the Predecessor Managing Owner or the Managing Owner for the reimbursement of organizational and offering costs (including continuous offering expenses for the offering of the Shares).

(o) Non-Recurring Fees and Expenses

The Fund pays all non-recurring and unusual fees and expenses (referred to as extraordinary fees and expenses in the Trust Declaration), if any, of itself, as determined by the Managing Owner. Non-recurring and unusual fees and expenses are fees and expenses which are non-recurring and unusual in nature, such as legal claims and liabilities, litigation costs or indemnification or other unanticipated expenses. Such non-recurring and unusual fees and expenses, by their nature, are unpredictable in terms of timing and amount. For the Three Months Ended March 31, 2015 and 2014, the Fund did not incur such expenses.

14

PowerShares DB Base Metals Fund

Notes to Unaudited Financial Statements—(Continued)

March 31, 2015

(6) Financial Instrument Risk

In the normal course of its business, the Fund is a party to financial instruments with off-balance sheet risk. The term “off-balance sheet risk” refers to an unrecorded potential liability that, even though it does not appear on the balance sheet, may result in a future obligation or loss in excess of the amounts shown on the Statement of Financial Condition. The financial instruments used by the Fund are commodity futures contracts, whose values are based upon an underlying asset and generally represent future commitments that have a reasonable possibility of being settled in cash or through physical delivery. The financial instruments are traded on an exchange and are standardized contracts.

Market risk is the potential for changes in the value of the financial instruments traded by the Fund due to market changes, including fluctuations in commodity prices. In entering into these commodity futures contracts, there exists a market risk that such commodity futures contracts may be significantly influenced by adverse market conditions, resulting in such commodity futures contracts being less valuable. If the markets should move against all of the commodity futures contracts at the same time, the Fund could experience substantial losses.

Credit risk is the possibility that a loss may occur due to the failure of the Commodity Broker and/or clearinghouse to perform according to the terms of a commodity futures contract. Credit risk with respect to exchange-traded instruments is reduced to the extent that an exchange or clearing organization acts as a counterparty to the transactions. The Commodity Broker, when acting as the Fund’s futures commission merchant in accepting orders for the purchase or sale of domestic commodity futures contracts, is required by CFTC regulations to separately account for and segregate as belonging to the Fund all assets of the Fund relating to domestic futures trading and the Commodity Broker is not allowed to commingle such assets with other assets of the Commodity Broker. In addition, CFTC regulations also require the Commodity Broker to hold in a secure account assets of the Fund related to foreign futures trading. The Fund’s risk of loss in the event of counterparty default is typically limited to the amounts recognized in the statement of financial condition and not represented by the commodity futures contract or notional amounts of the instruments.

The Fund has not utilized, nor does it expect to utilize in the future, special purpose entities to facilitate off-balance sheet financing arrangements and has no loan guarantee arrangements or off-balance sheet arrangements of any kind, other than agreements entered into in the normal course of business noted above.

(7) Share Purchases and Redemptions

(a) Purchases

On any business day, an Authorized Participant may place an order with the Administrator who serves as the Fund’s transfer agent (“Transfer Agent”) to create one or more Baskets. For purposes of processing both creation and redemption orders, a “business day” means any day other than a day when banks in New York City are required or permitted to be closed. Creation orders must be placed by 10:00 a.m., Eastern Time. The day on which the Transfer Agent receives a valid creation order is the creation order date. The day on which a creation order is settled is the creation order settlement date. As provided below, the creation order settlement date may occur up to 3 business days after the creation order date. By placing a creation order, and prior to delivery of such Baskets, an Authorized Participant’s DTC account is charged the non refundable transaction fee due for the creation order.

Unless otherwise agreed to by the Managing Owner and the Authorized Participant as provided in the next sentence, Baskets are issued on the creation order settlement date as of 2:45 p.m., Eastern Time, on the business day immediately following the creation order date at the applicable net asset value per Share as of the closing time of the NYSE Arca or the last to close of the exchanges on which its commodity futures contracts are traded, whichever is later, on the creation order date, but only if the required payment has been timely received. Upon submission of a creation order, the Authorized Participant may request the Managing Owner to agree to a creation order settlement date up to 3 business days after the creation order date. By placing a creation order, and prior to receipt of the Baskets, an Authorized Participant’s DTC account is charged the non-refundable transaction fee due for the creation order.

Creation orders may be placed either (i) through the Continuous Net Settlement (“CNS”) clearing processes of the National Securities Clearing Corporation (the “NSCC”) or (ii) if outside the CNS Clearing Process, only through the facilities of The Depository Trust Company (“DTC” or the “Depository”) (the “DTC Process”), or a successor depository.

(b) Redemptions

On any business day, an Authorized Participant may place an order with the Transfer Agent to redeem one or more Baskets. Redemption orders must be placed by 10:00 a.m., Eastern Time. The day on which the Managing Owner receives a valid redemption order is the redemption order date. The day on which a redemption order is settled is the redemption order settlement date. As provided below, the redemption order settlement date may occur up to 3 business days after the redemption order date. The

15

PowerShares DB Base Metals Fund

Notes to Unaudited Financial Statements—(Continued)

March 31, 2015

redemption procedures allow Authorized Participants to redeem Baskets. Individual Shareholders may not redeem directly from the Fund. Instead, individual Shareholders may only redeem Shares in integral multiples of 200,000 and only through an Authorized Participant.

Unless otherwise agreed to by the Managing Owner and the Authorized Participant as provided in the next sentence, by placing a redemption order, an Authorized Participant agrees to deliver the Baskets to be redeemed through DTC’s book-entry system to the Fund not later than the redemption order settlement date as of 2:45 p.m., Eastern Time, on the business day immediately following the redemption order date. Upon submission of a redemption order, the Authorized Participant may request the Managing Owner to agree to a redemption order settlement date up to 3 business days after the redemption order date. By placing a redemption order, and prior to receipt of the redemption proceeds, an Authorized Participant’s DTC account is charged the non-refundable transaction fee due for the redemption order.

Redemption orders may be placed either (i) through the CNS clearing processes of the NSCC or (ii) if outside the CNS Clearing Process, only through the DTC Process, or a successor depository, and only in exchange for cash. By placing a redemption order, and prior to receipt of the redemption proceeds, an Authorized Participant’s DTC account is charged the non-refundable transaction fee due for the redemption order.

The redemption proceeds from the Fund consist of the cash redemption amount. The cash redemption amount is equal to the net asset value of the number of Basket(s) of the Fund requested in the Authorized Participant’s redemption order as of the closing time of the NYSE Arca or the last to close of the exchanges on which the Fund’s commodity futures contracts are traded, whichever is later, on the redemption order date. The Managing Owner will distribute the cash redemption amount at the redemption order settlement date as of 2:45 p.m., Eastern Time, on the redemption order settlement date through DTC to the account of the Authorized Participant as recorded on DTC’s book-entry system.

The redemption proceeds due from the Fund are delivered to the Authorized Participant at 2:45 p.m., Eastern Time, on the redemption order settlement date if, by such time, the Fund’s DTC account has been credited with the Baskets to be redeemed. If the Fund’s DTC account has not been credited with all of the Baskets to be redeemed by such time, the redemption distribution is delivered to the extent of whole Baskets received. Any remainder of the redemption distribution is delivered on the next business day to the extent of remaining whole Baskets received if the Transfer Agent receives the fee applicable to the extension of the redemption distribution date which the Managing Owner may, from time-to-time, determine and the remaining Baskets to be redeemed are credited to the Fund’s DTC account by 2:45 p.m., Eastern Time, on such next business day. Any further outstanding amount of the redemption order will be cancelled. The Managing Owner is also authorized to deliver the redemption distribution notwithstanding that the Baskets to be redeemed are not credited to the Fund’s DTC account by 2:45 p.m., Eastern Time, on the redemption order settlement date if the Authorized Participant has collateralized its obligation to deliver the Baskets through DTC’s book-entry system on such terms as the Managing Owner may determine from time-to-time.

(8) Profit and Loss Allocations and Distributions

Pursuant to the Trust Agreement, income and expenses are allocated pro rata to the Managing Owner as holder of the General Shares and to the Shareholders monthly based on their respective percentage interests as of the close of the last trading day of the preceding month. Distributions (other than redemption of units) may be made at the sole discretion of the Managing Owner on a pro rata basis in accordance with the respective capital balances of the shareholders.

No distributions were paid for the Three Months Ended March 31, 2015 or 2014.

(9) Commitments and Contingencies

The Managing Owner, either in its own capacity or in its capacity as the Managing Owner and on behalf of the Fund, has entered into various service agreements that contain a variety of representations, or provide indemnification provisions related to certain risks service providers undertake in performing services which are in the best interests of the Fund. As of March 31, 2015 and December 31, 2014, no claims had been received by the Fund. Further, the Fund has not had prior claims or losses pursuant to these contracts. Accordingly, the Managing Owner expects the risk of loss to be remote.

(10) Net Asset Value and Financial Highlights

The Fund is presenting the following net asset value and financial highlights related to investment performance for a Share outstanding for the Three Months Ended March 31, 2015 and 2014. The net investment income (loss) and total expense ratios are calculated using average net asset value. The net asset value presentation is calculated using daily Shares outstanding. The total return is based on the change in net asset value of the Shares during the period. An individual investor’s return and ratios may vary based on the timing of capital transactions.

Net asset value per Share is the net asset value of the Fund divided by the number of outstanding Shares at the date of each respective period presented.

16

PowerShares DB Base Metals Fund

Notes to Unaudited Financial Statements—(Continued)

March 31, 2015

	Three Months Ended
	March 31, 2015			March 31, 2014
Net Asset Value
Net asset value per Share, beginning of period	$	15.99		$	16.78
Net realized and change in unrealized gain (loss) on United States Treasury Obligations and Commodity Futures Contracts		(0.76	)		(0.90	)
Net investment income (loss)		(0.03	)		(0.03	)
Net income (loss)		(0.79	)		(0.93	)
Net asset value per Share, end of period	$	15.20		$	15.85
Market value per Share, beginning of period	$	15.91		$	16.84
Market value per Share, end of period	$	15.17		$	15.86
Ratio to average Net Assets*
Net investment income (loss)		(0.80	)%		(0.73	)%
Total expenses		0.82	%		0.77	%
Total Return, at net asset value **		(4.94	)%		(5.54	)%
Total Return, at market value **		(4.65	)%		(5.82	)%

* Percentages are annualized.

** Percentages are not annualized.

(11) Subsequent Events

The Fund evaluated the need for disclosures and/or adjustments resulting from subsequent events through the date the financial statements were issued. This evaluation did not result in any subsequent events that necessitated disclosures and/or adjustments.

17

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

This information should be read in conjunction with the financial statements and notes included in Item 1 of Part I of this Quarterly Report (the “Report”). The discussion and analysis which follows may contain trend analysis and other forward-looking statements within the meaning of Section 21E of the Securities Exchange Act of 1934, as amended (the “Exchange Act”) which reflect our current views with respect to future events and financial results. The matters discussed throughout this Report that are not historical facts are forward-looking statements. These forward-looking statements are based on the registrant’s current expectations, estimates and projections about the registrant’s business and industry and its beliefs and assumptions about future events. Words such as “anticipate,” “expect,” “intend,” “plan,” “believe,” “seek,” “outlook” and “estimate”, as well as similar words and phrases, signify forward-looking statements. PowerShares DB Base Metals Fund’s (the “Fund”) forward-looking statements are not guarantees of future results and conditions and important factors, risks and uncertainties may cause our actual results to differ materially from those expressed in our forward-looking statements.

You should not place undue reliance on any forward-looking statements. Except as expressly required by the Federal securities laws, Invesco PowerShares Capital Management LLC, undertakes no obligation to publicly update or revise any forward-looking statements or the risks, uncertainties or other factors described in this Report, as a result of new information, future events or changed circumstances or for any other reason after the date of this Report.

Overview/Introduction

On October 24, 2014, DB Commodity Services LLC, a Delaware limited liability company (“DBCS”), DB U.S. Financial Markets Holding Corporation (“DBUSH”) and Invesco PowerShares Capital Management LLC (“Invesco”) entered into an Asset Purchase Agreement (the “Agreement”). DBCS is a wholly-owned subsidiary of DBUSH. DBCS agreed to transfer and sell to Invesco all of DBCS’ interest in the PowerShares DB Base Metals Fund (the “Fund”), including the sole and exclusive power to direct the business and affairs of the Fund, as well as certain other assets of DBCS pertaining to the management of the Fund, pursuant to the terms and conditions of the Agreement (the “Transaction”).

The Transaction was consummated on February 23, 2015 (the “Closing Date”). Invesco now serves as the managing owner (the “Managing Owner”), commodity pool operator and commodity trading advisor of the Fund, in replacement of DBCS (the “Predecessor Managing Owner”).

The Fund seeks to track changes, whether positive or negative, in the level of the DBIQ Optimum Yield Industrial Metals Index Excess Return™ (the “Index”) over time, plus the excess, if any, of the Fund’s interest income from its holdings of United States Treasury Obligations and other high credit quality short-term fixed income securities over the expenses of the Fund. The Shares are designed for investors who want a cost-effective and convenient way to invest in a group of commodity futures contracts on U.S. and non-U.S. markets.

As of the date of this Report, each of Deutsche Bank Securities Inc., Merrill Lynch Professional Clearing Corp., Newedge USA LLC, Virtu Financial Capital Markets LLC, Citigroup Global Markets Inc., J.P. Morgan Securities Inc., Credit Suisse Securities (USA) LLC, Virtu Financial BD LLC, Knight Capital Americas LLC, Timber Hill LLC, Morgan Stanley & Co. LLC, Jefferies LLC, Nomura Securities International Inc., RBC Capital Markets, LLC, UBS Securities LLC, Cantor Fitzgerald & Co., BNP Paribas Securities Corp., Goldman, Sachs & Co. and Goldman Sachs Execution & Clearing, L.P. has executed a Participant Agreement and are the only Authorized Participants.

The Fund pursues its investment objective by investing in a portfolio of exchange-traded commodity futures contracts that expire in a specific month and trade on a specific exchange (the “Index Contracts”) in the commodities comprising the Index (the “Index Commodities”). The Index Commodities are aluminum, zinc and copper-Grade A. The Index is composed of notional amounts of each of the Index Commodities. The Fund also holds United States Treasury Obligations and other high credit quality short-term fixed income securities for deposit with the Fund’s Commodity Broker as margin. After the Closing Date, the aggregate notional value of the commodity futures contracts owned by the Fund is expected to approximate the aggregate net asset value of the Fund as opposed to the aggregate Index value.

Although the LME does not currently impose position limits on the Index Commodities, the LME may in the future impose position limits on market participants trading in certain commodities included in the Index. Further, in the event the Fund invests in alternative commodity futures contracts as described below, that trade on a U.S. exchange, the Commodity Futures Trading Commission (the “CFTC”) and/or commodity exchanges, as applicable, impose position limits on market participants trading in the commodities included in the Index. As disclosed in the Fund’s Prospectus, if the Managing Owner determines in its commercially reasonable judgment that it has become impracticable or inefficient for any reason for the Fund to gain full or partial exposure to any Index Commodity by investing in a specific Index Contract, the Fund may invest in a commodity futures contract referencing the particular Index Commodity other than the Index Contract or, in the alternative, invest in other commodity futures contracts not based on the particular Index Commodity if, in the commercially reasonable judgment of the Managing Owner, such commodity futures contracts tend to exhibit trading prices that correlate with such Index Commodity. Please see http://www.invescopowershares.com with respect to the most recently available weighted composition of the Fund and the composition of the Index on the Base Date.

The Fund is not sponsored or endorsed by Deutsche Bank AG, Deutsche Bank Securities Inc. or any subsidiary or affiliate of Deutsche Bank AG or Deutsche Bank Securities Inc. (collectively, “Deutsche Bank”). The DBIQ Optimum Yield Industrial Metals Index Excess Return™ (the “Index”) is the exclusive property of Deutsche Bank Securities Inc. “DBIQ” is a service mark of Deutsche Bank AG and has been licensed for use for certain purposes by Deutsche Bank Securities Inc. Neither Deutsche Bank nor any other party involved in, or related to, making or compiling the Index makes any representation or warranty, express or implied, concerning the Index, the Fund or the advisability of investing in securities generally. Neither Deutsche Bank nor any other party involved in, or related to, making or compiling the Index has any obligation to take the needs of the Managing Owner, or its clients into consideration in determining, composing or calculating the Index. Neither Deutsche Bank nor any other party involved in, or related to, making or compiling the Index is responsible for or has participated in the determination of the timing of, prices at, quantities or valuation of the Fund. Neither Deutsche Bank nor any other party involved in, or related to, making or compiling the Index has any obligation or liability in connection with the administration or trading of the Fund.

NEITHER DEUTSCHE BANK NOR ANY OTHER PARTY INVOLVED IN, OR RELATED TO, MAKING OR COMPILING THE INDEX, WARRANTS OR GUARANTEES THE ACCURACY AND/OR THE COMPLETENESS OF THE INDEX OR ANY DATA INCLUDED THEREIN AND SHALL HAVE NO LIABILITY FOR ANY ERRORS, OMISSIONS, OR INTERRUPTIONS THEREIN. NEITHER DEUTSCHE BANK NOR ANY OTHER PARTY INVOLVED IN, OR RELATED TO, MAKING OR COMPILING THE INDEX, MAKES ANY WARRANTY, EXPRESS OR IMPLIED, AS TO RESULTS TO BE OBTAINED BY INVESCO POWERSHARES CAPITAL MANAGEMENT LLC FROM THE USE OF THE INDEX OR ANY DATA INCLUDED THEREIN. NEITHER DEUTSCHE BANK NOR ANY OTHER PARTY INVOLVED IN, OR RELATED TO, MAKING OR COMPILING THE INDEX, MAKES ANY EXPRESS OR IMPLIED WARRANTIES, AND EXPRESSLY DISCLAIMS ALL WARRANTIES, OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OR USE WITH RESPECT TO THE INDEX OR ANY DATA INCLUDED THEREIN. WITHOUT LIMITING ANY OF THE FOREGOING, IN NO EVENT SHALL DEUTSCHE BANK OR ANY OTHER PARTY INVOLVED IN, OR RELATED TO, MAKING OR COMPILING THE INDEX HAVE ANY LIABILITY FOR DIRECT, INDIRECT, PUNITIVE, SPECIAL, CONSEQUENTIAL OR ANY OTHER DAMAGES OR LOSSES (INCLUDING LOST PROFITS), EVEN IF NOTIFIED OF THE POSSIBILITY THEREOF. EXCEPT AS EXPRESSLY PROVIDED TO THE CONTRARY, THERE ARE NO THIRD PARTY BENEFICIARIES OF ANY AGREEMENTS OR ARRANGEMENTS BETWEEN DEUTSCHE BANK AND INVESCO POWERSHARES CAPITAL MANAGEMENT LLC.

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No purchaser, seller or holder of the Shares of this Fund, or any other person or entity, should use or refer to any Deutsche Bank trade name, trademark or service mark to sponsor, endorse, market or promote this Fund without first contacting Deutsche Bank to determine whether Deutsche Bank’s permission is required. Under no circumstances may any person or entity claim any affiliation with Deutsche Bank without the written permission of Deutsche Bank.

The Index is composed of notional amounts of each of the underlying Index Commodities. The notional amount of each Index Commodity included in the Index is intended to reflect the changes in market value of each such Index Commodity within the Index. The closing level of the Index is calculated on each business day by the Index Sponsor based on the closing price of the commodity futures contracts for each of the underlying Index Commodities and the notional amounts of such Index Commodities. The Index is rebalanced annually in November to ensure that each of the Index Commodities is weighted in the same proportion that such Index Commodities were weighted on September 3, 1997 (the “Base Date”). The following table reflects the index base weights (the “Index Base Weights”) of each Index Commodity on the Base Date:

Index Commodity	Index Base Weight (%)
Aluminum		33.34
Zinc		33.33
Copper-Grade A		33.33
Closing Level on Base Date:		100.00

The composition of the Index may be adjusted in the event that the Index Sponsor is not able to calculate the closing prices of the Index Commodities.

The following table reflects the Fund weights of each Index Commodity or related commodity futures contracts, as applicable, as of March 31, 2015:

Index Commodity	Fund Weight (%)
Aluminum		32.49
Zinc		33.79
Copper-Grade A		33.72
Closing Level as of March 31, 2015:		100.00

Please see http://www.invescopowershares.com with respect to the most recently available weighted composition of the Fund and the composition of the Fund’s Index on the Base Date.

The Index includes provisions for the replacement of commodity futures contracts as they approach maturity. This replacement takes place over a period of time in order to lessen the impact on the market for the commodity futures contracts being replaced. With respect to each Index Commodity, the Fund employs a rule-based approach when it “rolls” from one commodity futures contract to another.

Rather than select a new commodity futures contract based on a predetermined schedule (e.g., monthly), each Index Commodity rolls to the commodity futures contract which generates the best possible “implied roll yield.” The commodity futures contract with a delivery month within the next thirteen months which generates the best possible implied roll yield will be included in each Index. As a result, each Index Commodity is able to potentially maximize the roll benefits in backwardated markets and minimize the losses from rolling in contangoed markets for each Index Commodity, respectively.

In general, as a commodity futures contract approaches its expiration date, its price will move towards the spot price in a contangoed market. Assuming the spot price does not change, this would result in the commodity futures contract price decreasing and a negative implied roll yield. The opposite is true in a backwardated market. Rolling in a contangoed market will tend to cause a drag on an Index Commodity’s contribution to the Fund’s return while rolling in a backwardated market will tend to cause a push on an Index Commodity’s contribution to the Fund’s return.

The DBIQ Optimum Yield Industrial Metals Index is calculated in USD on both an excess return (unfunded) and total return (funded) basis.

The commodity futures contract price for each Index Commodity will be the exchange closing price for such Index Commodity on each weekday when banks in New York, New York are open (the “Index Business Days”). If a weekday is not an Exchange Business Day (as defined in the following sentence) but is an Index Business Day, the exchange closing price from the previous Index Business Day will be used for each Index Commodity. “Exchange Business Day” means, in respect of an Index Commodity, a day that is a trading day for such Index Commodity on the relevant exchange (unless either an Index disruption event or force majeure event has occurred).

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On the first New York business day (the “Verification Date”) of each month, each Index Commodity futures contract will be tested in order to determine whether to continue including it in the Index. If the Index Commodity futures contract requires delivery of the underlying commodity in the next month, known as the Delivery Month, a new Index Commodity futures contract will be selected for inclusion in the Index. For example, if the first New York business day is October 1, 2015, and the Delivery Month of the Index Commodity futures contract currently in such Index is November 2015, a new Index Commodity futures contract with a later Delivery Month will be selected.

For each underlying Index Commodity of the Index, the new Index Commodity futures contract selected will be the Index Commodity futures contract with the best possible “implied roll yield” based on the closing price for each eligible Index Commodity futures contract. Eligible Index Commodity futures contracts are any Index Commodity futures contracts having a Delivery Month (i) no sooner than the month after the Delivery Month of the Index Commodity futures contract currently in such Index, and (ii) no later than the 13^th month after the Verification Date. For example, if the first New York business day is October 1, 2015 and the Delivery Month of an Index Commodity futures contract currently in the Index is November 2015, the Delivery Month of an eligible new Index Commodity futures contract must be between December 2015 and October 2016. The implied roll yield is then calculated and the commodity futures contract on the Index Commodity with the best possible implied roll yield is then selected. If two commodity futures contracts have the same implied roll yield, the commodity futures contract with the minimum number of months prior to the Delivery Month is selected.

After the commodity futures contract selection, the monthly roll for each Index Commodity subject to a roll in that particular month unwinds the old commodity futures contract and enters a position in the new commodity futures contract. This takes place between the 2^nd and 6^th Index Business Day of the month.

On each day during the roll period, new notional holdings are calculated. The calculations for the commodity futures contracts on the old Index Commodities that are leaving the Index and the commodity futures contracts on the new Index Commodities are then calculated.

On all days that are not monthly index roll days, the notional holdings of each Index Commodity future remains constant.

The Index is re-weighted on an annual basis on the 6^th Index Business Day of each November.

The calculation of the Index is expressed as the weighted average return of the Index Commodities.

Under the Fifth Amended and Restated Declaration of Trust and Trust Agreement of the Trust (the “Trust Agreement”), Wilmington Trust Company, the Trustee of the Trust, has delegated to the Managing Owner the exclusive management and control of all aspects of the business of the Trust and the Fund. The Trustee will have no duty or liability to supervise or monitor the performance of the Managing Owner, nor will the Trustee have any liability for the acts or omissions of the Managing Owner.

The Shares are intended to provide investment results that generally correspond to the changes, positive or negative, in the levels of the Index over time. The value of the Shares is expected to fluctuate in relation to changes in the value of the Fund’s portfolio. The market price of the Shares may not be identical to the net asset value per Share, but these two valuations are expected to be very close.

Margin Calls

Like other futures and derivatives traders, the Fund will be subject to margin calls from time-to-time. The term “margin” has a different meaning in the context of commodity futures contracts and other derivatives than it does in the context of securities. In particular, “margin” on a futures position does not constitute a borrowing of money or the collateralization of a loan. The Fund does not borrow money.

To establish a position in an exchange-traded commodity futures contract, the Fund makes a deposit of “initial margin.” The amount of initial margin required to be deposited in order to establish a position in an exchange-traded commodity futures contract varies from instrument to instrument depending, generally, on the historical volatility of the commodity futures contract in question. Determination of the amount of the required initial margin deposit in respect of a particular contract is made by the exchange on which the contract is listed. To establish a long position in an over-the-counter instrument, the counterparty may require an analogous deposit of collateral, depending upon the anticipated volatility of the instrument and the creditworthiness of the person seeking to establish the position. The deposit of initial margin provides assurance to futures commission merchants and clearing brokers involved in the settlement process that sufficient resources are likely to be on deposit to enable a client’s position to be closed by recourse to the initial margin deposit should the client fail to meet a demand for variation margin, even if changes in the value of the contract in question, which are marked to market from day to day, continue to reflect the contract’s historical volatility. Collateral deposited in support of an over-the-counter instrument serves a similar purpose. Once a position has been established on a futures exchange, “variation margin” generally is credited or assessed at least daily to reflect changes in the value of the position. In contrast to “initial

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margin,” “variation margin” represents a system of marking to market the commodity futures contract’s value. Thus, traders in exchange-traded commodity futures contracts are assessed daily in an amount equal to that day’s accumulated losses in respect of any open position (or are credited daily with accumulated gains in respect of such position). Collateral may move between the parties to an over-the-counter instrument in a similar manner as gains or losses accumulate in the instrument. As with initial margin, variation margin serves to secure the obligations of the investor under the contract and to protect those involved in the settlement process against the possibility that a client will have insufficient resources to meet its contractual obligations. Collateral deposited in support of an over-the-counter instrument serves a similar purpose. Like initial margin (or an equivalent deposit of collateral), variation margin (or an equivalent deposit of collateral) does not constitute a borrowing of money, is not considered to be part of the contract purchase price and is returned upon the contract’s termination unless it is used to cover a loss in the contract position. United States Treasury Obligations are used routinely to collateralize OTC derivative positions, and are deposited routinely as margin to collateralize futures positions. The Fund may liquidate United States Treasury Obligations to meet an initial or variation margin requirement.

Performance Summary

This Report covers the three months ended March 31, 2015 and 2014 (hereinafter referred to as the “Three Months Ended March 31, 2015” and the “Three Months Ended March 31, 2014”, respectively).

The Fund commenced trading on the American Stock Exchange (which became the NYSE Alternext US LLC (the “NYSE Alternext”)) on January 5, 2007, and, as of November 25, 2008, is listed on the NYSE Arca, Inc. (the “NYSE Arca”).

Performance of the Fund and the exchange traded Shares are detailed below in “Results of Operations”. The Fund’s performance information from inception up to and excluding the Closing Date is a reflection of the performance associated with the Predecessor Managing Owner. The Managing Owner has served as managing owner of the Fund since the Closing Date, and the Fund’s performance information since the Closing Date is a reflection of the performance associated with the Managing Owner. Past performance of the Fund is not necessarily indicative of future performance.

The Index is intended to reflect the change in market value of the Index Commodities. In turn, the Index is intended to reflect the base metals sector. The DBIQ Optimum Yield Industrial Metals Index Total Return™ (the “DBIQ-OY Industrial Metals TR™”) consists of the Index plus 3-month United States Treasury Obligations returns. Past Index results are not necessarily indicative of future changes, positive or negative, in the Index closing levels.

The section “Summary of DBIQ-OY Industrial Metals TR™ and Underlying Index Commodity Returns for the Three Months Ended March 31, 2015 and for the Three Months Ended March 31, 2014” below provides an overview of the changes in the closing levels of DBIQ-OY Industrial Metals TR™ by disclosing the change in market value of each underlying component Index Commodity through a “surrogate” (and analogous) index plus 3-month United States Treasury Obligations returns. Please note also that the Fund’s objective is to track the Index (not DBIQ-OY Industrial Metals TR™), and the Fund does not attempt to outperform or underperform the Index.

Summary of DBIQ-OY Industrial Metals TR™ and Underlying Index Commodity

Returns for the Three Months Ended March 31, 2015

and for the Three Months Ended March 31, 2014

Underlying Index	Three Months Ended March 31, 2015			Three Months Ended March 31, 2014
DB Aluminum Indices		(4.12	)%		(2.34	)%
DB Zinc Indices		(5.23	)%		(3.58	)%
DB Copper—Grade A Indices		(3.70	)%		(9.33	)%
AGGREGATE RETURN		(4.36	)%		(5.11	)%

If the Fund’s interest income from its holdings of fixed income securities were to exceed the Fund’s fees and expenses, the aggregate return on an investment in the Fund is expected to outperform the Index and underperform the DBIQ-OY Industrial Metals TR™. The only difference between (i) the Index and (ii) the DBIQ-OY Industrial Metals TR™ is that the Index does not include interest income from a hypothetical basket of fixed income securities while the DBIQ-OY Industrial Metals TR™ does include such a component. Thus, the difference between the Index and the DBIQ-OY Industrial Metals TR™ is attributable entirely to the hypothetical interest income from this hypothetical basket of fixed income securities. If the Fund’s interest income from its holdings of

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fixed income securities exceeds the Fund’s fees and expenses, then the amount of such excess is expected to be distributed periodically. The market price of the Shares is expected to closely track the Index. The aggregate return on an investment in the Fund over any period is the sum of the capital appreciation or depreciation of the Shares over the period, plus the amount of any distributions during the period. Consequently, the Fund’s aggregate return is expected to outperform the Index by the amount of the excess, if any, of its interest income over its fees and expenses but, as a result of the Fund’s fees and expenses, the aggregate return on the Fund is expected to underperform the DBIQ-OY Industrial Metals TR™. If the Fund’s fees and expenses were to exceed the Fund’s interest income from its holdings of fixed income securities, the aggregate return on an investment in the Fund is expected to underperform the Index.

Net Asset Value

Net asset value means the total assets of the Fund, including, but not limited to, all commodity futures contracts, cash and investments less total liabilities of the Fund, each determined on the basis of U.S. generally accepted accounting principles (“U.S. GAAP”), consistently applied under the accrual method of accounting. In particular, net asset value includes any unrealized appreciation or depreciation on open commodity futures contracts, and any other credit or debit accruing to the Fund but unpaid or not received by the Fund. All open commodity futures contracts will be calculated at their then current market value, which will be based upon the settlement price for that particular commodity futures contract traded on the applicable exchange on the date with respect to which net asset value is being determined; provided, that if a commodity futures contract could not be liquidated on such day, due to the operation of daily limits or other rules of the exchange upon which that position is traded or otherwise, the Managing Owner may value such commodity futures contract pursuant to policies the Managing Owner has adopted, which are consistent with normal industry standards. The Managing Owner may in its discretion (and under circumstances, including, but not limited to, periods during which a settlement price of a commodity futures contract is not available due to exchange limit orders or force majeure type events such as systems failure, natural or man-made disaster, act of God, armed conflict, act of terrorism, riot or labor disruption or any similar intervening circumstance) value any asset of the Fund pursuant to such other principles as the Managing Owner deems fair and equitable so long as such principles are consistent with normal industry standards. Interest earned on the Fund’s brokerage account is accrued monthly. The amount of any distribution is a liability of the Fund from the day when the distribution is declared until it is paid.

Net asset value per share is the net asset value of the Fund divided by the number of outstanding Shares.

Critical Accounting Policies

The Fund’s critical accounting policies are as follows:

Preparation of the financial statements and related disclosures in conformity with U.S. GAAP requires the application of appropriate accounting rules and guidance, as well as the use of estimates, and requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, revenue and expense and related disclosure of contingent assets and liabilities during the reporting period of the financial statements and accompanying notes. The Fund’s application of these policies involves judgments and actual results may differ from the estimates used.

The Fund holds a significant portion of its assets in commodity futures contracts and United States Treasury Obligations, both of which are recorded on a trade date basis and at fair value in the financial statements, with changes in fair value reported in the statement of income and expenses.

The use of fair value to measure financial instruments, with related unrealized gains or losses recognized in earnings in each period, is fundamental to the Fund’s financial statements. U.S. GAAP defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, under current market conditions.

U.S. GAAP establishes a hierarchy that prioritizes the inputs to valuation methods, giving the highest priority to readily available unadjusted quoted prices in an active market for identical assets (Level 1) and the lowest priority to significant unobservable inputs (Level 3), generally when market prices are not readily available or are unreliable. Based on the valuation inputs, the securities or other investments are tiered into one of three levels. Changes in valuation methods may result in transfers in or out of an investment’s assigned level. See Note 5(c) within the financial statements in Item 1 for further information.

When market closing prices are not available, the Managing Owner may value an asset of the Fund pursuant to policies the Managing Owner has adopted, which are consistent with normal industry standards.

Realized gains (losses) and changes in unrealized gain (loss) on open positions are determined on a specific identification basis and recognized in the statement of income and expenses in the period in which the contract is closed or the changes occur, respectively.

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Interest income on United States Treasury Obligations is recognized on an accrual basis when earned. Premiums and discounts are amortized or accreted over the life of the United States Treasury Obligations.

Market Risk

Trading in commodity futures contracts involves the Fund entering into contractual commitments to purchase a particular commodity at a specified date and price. The market risk associated with the Fund’s commitments to purchase commodities is limited to the gross or face amount of the contracts held.

The Fund’s exposure to market risk is also influenced by a number of factors including the volatility of interest rates and foreign currency exchange rates, the liquidity of the markets in which the contracts are traded and the relationships among the contracts held. The inherent uncertainty of the Fund’s trading as well as the development of drastic market occurrences could ultimately lead to a loss of all or substantially all of the investors’ capital.

Credit Risk

When the Fund enters into commodity futures contracts, the Fund is exposed to credit risk that the counterparty to the contract will not meet its obligations. The counterparty for commodity futures contracts traded on United States and on most foreign futures exchanges is the clearing house associated with the particular exchange. In general, clearing houses are backed by their corporate members who may be required to share in the financial burden resulting from the nonperformance by one of their members and, as such, should significantly reduce this credit risk. In cases where the clearing house is not backed by the clearing members (i.e., some foreign exchanges), it may be backed by a consortium of banks or other financial institutions. There can be no assurance that any counterparty, clearing member or clearinghouse will meet its obligations to the Fund.

The Commodity Broker, when acting as the Fund’s futures commission merchant in accepting orders for the purchase or sale of domestic commodity futures contracts, is required by CFTC regulations to separately account for and segregate as belonging to the Fund all assets of the Fund relating to domestic futures trading and the Commodity Broker is not allowed to commingle such assets with other assets of the Commodity Broker. In addition, CFTC regulations also require the Commodity Broker to hold in a secure account assets of the Fund related to foreign futures trading.

Liquidity

All of the Fund’s source of capital is derived from the Fund’s offering of Shares to Authorized Participants. The Fund in turn allocates its net assets to commodities trading. A significant portion of the net asset value is held in United States Treasury Obligations and cash, which is used as margin for the Fund’s trading in commodities. The percentage that United States Treasury Obligations bear to the total net assets will vary from period to period as the market values of the Fund’s commodity interests change. The balance of the net assets is held in the Fund’s commodity trading account. Interest earned on the Fund’s interest-bearing funds is paid to the Fund.

The Fund’s commodity contracts may be subject to periods of illiquidity because of market conditions, regulatory considerations or for other reasons. For example, commodity exchanges generally have the ability to limit fluctuations in certain commodity futures contract prices during a single day by regulations referred to as “daily limits.” During a single day, no trades may be executed at prices beyond the daily limit. Once the price of a particular commodity futures contract for a particular commodity has increased or decreased by an amount equal to the daily limit, positions in the commodity futures contract can neither be taken nor liquidated unless the traders are willing to effect trades at or within the limit. Commodity futures contract prices have occasionally moved the daily limit for several consecutive days with little or no trading. Such market conditions could prevent the Fund from promptly liquidating its commodity futures positions.

Because the Fund trades commodity futures contracts, its capital is at risk due to changes in the value of commodity futures contracts (market risk) or the inability of counterparties (including exchange clearinghouses) to perform under the terms of the contracts (credit risk).

On any business day, an Authorized Participant may place an order with the Transfer Agent to redeem one or more Baskets. Redemption orders must be placed by 10:00 a.m., Eastern Time. The day on which the Managing Owner receives a valid redemption order is the redemption order date. The day on which a redemption order is settled is the redemption order settlement date. As provided below, the redemption order settlement date may occur up to 3 business days after the redemption order date. Redemption orders are irrevocable. The redemption procedures allow Authorized Participants to redeem Baskets. Individual Shareholders may not redeem directly from the Fund. Instead, individual Shareholders may only redeem Shares in integral multiples of 200,000 and only through an Authorized Participant.

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Unless otherwise agreed to by the Managing Owner and the Authorized Participant as provided in the next sentence, by placing a redemption order, an Authorized Participant agrees to deliver the Baskets to be redeemed through DTC’s book-entry system to the Fund not later than the redemption order settlement date as of 2:45 p.m., Eastern Time, on the business day immediately following the redemption order date. Upon submission of a redemption order, the Authorized Participant may request the Managing Owner to agree to a redemption order settlement date up to 3 business days after the redemption order date. By placing a redemption order, and prior to receipt of the redemption proceeds, an Authorized Participant’s DTC account is charged the non-refundable transaction fee due for the redemption order.

Redemption orders may be placed either (i) through the Continuous Net Settlement (“CNS”) clearing processes of the National Securities Clearing Corporation (the “ NSCC”) or (ii) if outside the CNS Clearing Process, only through the facilities of The Depository Trust Company (“DTC” or the “Depository”) (the “DTC Process”), or a successor depository, and only in exchange for cash. By placing a redemption order, and prior to receipt of the redemption proceeds, an Authorized Participant’s DTC account is charged the non-refundable transaction fee due for the redemption order and such fee is not borne by the Fund.

Cash Flows

The primary cash flow activity of the Fund is to raise capital from Authorized Participants through the issuance of Shares. This cash is used to invest in United States Treasury Obligations and to meet margin requirements as a result of the positions taken in commodity futures contracts to match the fluctuations of the Index the Fund is tracking.

Operating Activities

Net cash flow provided by (used for) operating activities was $37.6 million and $(89.2) million for the Three Months Ended March 31, 2015 and 2014, respectively. These amounts primarily include net income (loss) and net purchases and sales of United States Treasury Obligations which are held at fair value on the statement of financial condition.

During the Three Months Ended March 31, 2015, $161.0 million was paid to purchase United States Treasury Obligations and $214.0 million was received from sales and maturing United States Treasury Obligations. During the Three Months Ended March 31, 2014, $294.0 million was paid to purchase United States Treasury Obligations and $225.0 million was received from sales and maturing United States Treasury Obligations. Unrealized appreciation/depreciation on United States Treasury Obligations and commodity futures contracts increased (decreased) net cash provided by (used for) operating activities by $(5.0) million and $2.8 million during the Three Months Ended March 31, 2015 and 2014, respectively.

Financing Activities

The Fund’s net cash flow provided by (used for) financing activities was $(7.2) million and $85.4 million during the Three Months Ended March 31, 2015 and 2014, respectively. This included $44.9 million and $104.6 million from the sale of Shares to Authorized Participants and $52.1 million and $19.2 million from Shares redeemed by Authorized Participants during the Three Months Ended March 31, 2015 and 2014, respectively.

Results of Operations

FOR THE THREE MONTHS ENDED MARCH 31, 2015 AND 2014

The Fund was launched on January 3, 2007 at $25.00 per Share. The Shares traded on the NYSE Alternext from January 5, 2007 to November 25, 2008 and have been trading on the NYSE Arca since November 25, 2008. The Fund’s performance information from inception up to and excluding the Closing Date is a reflection of the performance associated with the Predecessor Managing Owner. The Managing Owner has served as managing owner of the Fund since the Closing Date, and the Fund’s performance information since the Closing Date is a reflection of the performance associated with the Managing Owner. Past performance of the Fund is not necessarily indicative of future performance.

The Fund seeks to track changes in the closing levels of the DBIQ Optimum Yield Industrial Metals Index Excess Return™ (the “Index”) over time, plus the excess, if any, of the Fund’s interest income from its holdings of United States Treasury Obligations and other high credit quality short-term fixed income securities over the expenses of the Fund. The following graphs illustrate changes in (i) the price of the Shares (as reflected by the graph “DBB”), (ii) the Fund’s NAV (as reflected by the graph “DBBNV”), and (iii) the closing levels of the Index (as reflected by the graph “DBBMIX”). Whenever the interest income earned by the Fund exceeds Fund expenses, the price of the Shares generally has exceeded the levels of the Index primarily because the Share price reflects interest income from the Fund’s collateral holdings whereas the Index does not consider such interest income. There can be no assurances that the price of the Shares will exceed the Index levels.

The Index is a set of rules applied to a body of data and does not represent the results of actual investment or trading. The Index is frictionless, in that it does not take into account fees or expenses associated with investing in the Fund. Also, because it does not

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represent actual futures positions, the Index is not subject to, and does not take into account the impact of, speculative position limits or certain other similar limitations on the ability of the Fund to trade the Index Commodities. The “TR” version of the Index includes an assumed amount of interest income based on prevailing rates that is adjusted from time to time. The Fund, by contrast, invests actual money and trades actual commodity futures contracts. As a result, the performance of the Fund involves friction, in that fees and expenses impose a drag on performance. The Fund may be subject to speculative position limits and certain other limitations on its ability to trade the Index Commodities, which may compel the Fund to trade commodity futures contracts or other instruments that are not the Index Commodities as proxies for the Index Commodities. The interest rate actually earned by the Fund over any period may differ from the assumed amount of interest income factored into the “TR” version of the Index over the same period. All of these factors can contribute to discrepancies between changes in net asset value per Share and changes in the level of the Index over any period of time. The extent to which the Fund has invested at an aggregate notional level approximating the Index value as opposed to the Fund’s aggregate net asset value also may contribute to discrepancies. Fees and expenses always will tend to cause changes in the net asset value per Share to underperform changes in the value of the Index over any given period, all other things being equal. Actual interest income could be higher or lower than the assumed interest income factored into the “TR” version of the Index, and therefore could cause changes in the net asset value per Share to outperform or underperform changes in the value of the “TR” version of the Index over any given period, all other things being equal. Similarly, trading commodity futures contracts or other instruments that are not the Index Commodities as proxies for the Index Commodities could cause changes in the net asset value per Share to outperform or underperform changes in the value of the Index over any given period, all other things being equal.

25

COMPARISON OF DBB, DBBNV AND DBBMIX FOR THE THREE MONTHS ENDED

MARCH 31, 2015 AND 2014

NEITHER THE PAST PERFORMANCE OF THE FUND NOR THE PRIOR INDEX LEVELS AND CHANGES, POSITIVE OR NEGATIVE, SHOULD BE TAKEN AS AN INDICATION OF THE FUND’S FUTURE PERFORMANCE.

NEITHER THE PAST PERFORMANCE OF THE FUND NOR THE PRIOR INDEX LEVELS AND CHANGES, POSITIVE OR NEGATIVE, SHOULD BE TAKEN AS AN INDICATION OF THE FUND’S FUTURE PERFORMANCE.

See Additional Legends below.

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Additional Legends

The Fund seeks to track changes, whether positive or negative, in the level of the DBIQ Optimum Yield Industrial Metals Index Excess Return™ (the “Index”) over time, plus the excess, if any, of the Fund’s interest income from its holdings of United States Treasury Obligations and other high credit quality short-term fixed income securities over the expenses of the Fund. The Index is intended to reflect the change in market value of the base metals sector. The commodities comprising the Index (each an “Index Commodity,” collectively, the “Index Commodities”) are aluminum, zinc and copper – Grade A.

DBIQ Optimum Yield Industrial Metals Excess Return™ is an index and does not reflect (i) actual trading and (ii) any fees or expenses.

WHILE THE FUND’S OBJECTIVE IS NOT TO GENERATE PROFIT THROUGH ACTIVE PORTFOLIO MANAGEMENT, BUT IS TO TRACK THE INDEX, BECAUSE THE INDEX WAS ESTABLISHED IN JULY 2006 (RENAMED OCTOBER 2010), CERTAIN INFORMATION RELATING TO THE INDEX CLOSING LEVELS MAY BE CONSIDERED TO BE “HYPOTHETICAL.” HYPOTHETICAL INFORMATION MAY HAVE CERTAIN INHERENT LIMITATIONS, SOME OF WHICH ARE DESCRIBED BELOW.

WITH RESPECT TO INDEX DATA, NO REPRESENTATION IS BEING MADE THAT THE INDEX WILL OR IS LIKELY TO ACHIEVE ANNUAL OR CUMULATIVE CLOSING LEVELS CONSISTENT WITH OR SIMILAR TO THOSE SET FORTH HEREIN. SIMILARLY, NO REPRESENTATION IS BEING MADE THAT THE FUND WILL GENERATE PROFITS OR LOSSES SIMILAR TO THE FUND’S PAST PERFORMANCE OR THE HISTORICAL ANNUAL OR CUMULATIVE CHANGES IN THE INDEX CLOSING LEVELS. IN FACT, THERE ARE FREQUENTLY SHARP DIFFERENCES BETWEEN HYPOTHETICAL RESULTS AND THE ACTUAL RESULTS SUBSEQUENTLY ACHIEVED BY INVESTMENT METHODOLOGIES, WHETHER ACTIVE OR PASSIVE.

WITH RESPECT TO INDEX DATA, ONE OF THE LIMITATIONS OF HYPOTHETICAL INFORMATION IS THAT IT IS GENERALLY PREPARED WITH THE BENEFIT OF HINDSIGHT. TO THE EXTENT THAT INFORMATION PRESENTED HEREIN RELATES TO THE PERIOD SEPTEMBER 1997 THROUGH JUNE 2006, THE INDEX CLOSING LEVELS REFLECT THE APPLICATION OF THE INDEX METHODOLOGY, AND SELECTION OF INDEX COMMODITIES, IN HINDSIGHT.

NO HYPOTHETICAL RECORD CAN COMPLETELY ACCOUNT FOR THE IMPACT OF FINANCIAL RISK IN ACTUAL TRADING. FOR EXAMPLE, THERE ARE NUMEROUS FACTORS, INCLUDING THOSE DESCRIBED UNDER ITEM 1A. “RISK FACTORS” SET FORTH IN THE FUND’S ANNUAL REPORT ON FORM 10-K FOR THE YEAR ENDED DECEMBER 31, 2014, RELATED TO THE COMMODITIES MARKETS IN GENERAL OR TO THE IMPLEMENTATION OF THE FUND’S EFFORTS TO TRACK THE INDEX OVER TIME WHICH CANNOT BE, AND HAVE NOT BEEN, ACCOUNTED FOR IN THE PREPARATION OF THE INDEX INFORMATION SET FORTH ON THE FOLLOWING PAGES, ALL OF WHICH CAN ADVERSELY AFFECT ACTUAL PERFORMANCE RESULTS FOR THE FUND. FURTHERMORE, THE INDEX INFORMATION DOES NOT INVOLVE FINANCIAL RISK OR ACCOUNT FOR THE IMPACT OF FEES AND COSTS ASSOCIATED WITH THE FUND.

THE MANAGING OWNER AND ITS TRADING PRINCIPALS HAVE LIMITED EXPERIENCE MANAGING THE DAY-TO-DAY OPERATIONS FOR THE FUND AND, PRIOR TO THE CLOSING DATE, HAD ONLY MANAGED AN EXCHANGE-TRADED FUND THAT RELATES TO A BROAD-BASED COMMODITY INDEX FOR A SHORT PERIOD. BECAUSE THERE ARE LIMITED ACTUAL PERFORMANCE RESULTS OF THE MANAGING OWNER THAT ARE COMPARABLE TO THE INDEX CLOSING LEVELS SET FORTH HEREIN, PROSPECTIVE INVESTORS SHOULD BE PARTICULARLY WARY OF PLACING UNDUE RELIANCE ON INDEX RESULTS IN RESPECT OF ANY PERIOD. FOR THE AVOIDANCE OF DOUBT, NONE OF THE PERFORMANCE RELATED INFORMATION THAT IS COVERED BY THE PERIOD OF THIS REPORT UP TO AND EXCLUDING THE CLOSING DATE CAN BE ATTRIBUTED TO THE MANAGING OWNER.

THE PREDECESSOR MANAGING OWNER, AN INDIRECT WHOLLY OWNED SUBSIDIARY OF DEUTSCHE BANK AG, COMMENCED OPERATIONS IN JANUARY 2006. AS THE PREDECESSOR MANAGING OWNER, THE PREDECESSOR MANAGING OWNER AND ITS TRADING PRINCIPALS MANAGED THE DAY-TO-DAY OPERATIONS FOR THE FUND FROM INCEPTION UP TO AND EXCLUDING THE CLOSING DATE. BECAUSE THERE ARE LIMITED ACTUAL TRADING RESULTS TO COMPARE TO THE INDEX CLOSING LEVELS SET FORTH HEREIN, PROSPECTIVE INVESTORS SHOULD BE PARTICULARLY WARY OF PLACING UNDUE RELIANCE ON INDEX RESULTS IN RESPECT OF ANY PERIOD. FOR THE AVOIDANCE OF DOUBT, NONE OF THE PERFORMANCE RELATED INFORMATION THAT IS COVERED BY THE PERIOD OF THIS REPORT ON AND AFTER THE CLOSING DATE CAN BE ATTRIBUTED TO THE PREDECESSOR MANAGING OWNER.

27

THE FUND’S PERFORMANCE INFORMATION FROM INCEPTION UP TO AND EXCLUDING THE CLOSING DATE IS A REFLECTION OF THE PERFORMANCE ASSOCIATED WITH THE PREDECESSOR MANAGING OWNER. THE MANAGING OWNER HAS SERVED AS MANAGING OWNER OF THE FUND SINCE THE CLOSING DATE, AND THE FUND’S PERFORMANCE INFORMATION SINCE THE CLOSING DATE IS A REFLECTION OF THE PERFORMANCE ASSOCIATED WITH THE MANAGING OWNER. PAST PERFORMANCE OF THE FUND IS NOT NECESSARILY INDICATIVE OF FUTURE PERFORMANCE.

FOR THE THREE MONTHS ENDED MARCH 31, 2015 COMPARED TO THE THREE MONTHS ENDED MARCH 31, 2014

Fund Share Price Performance

For the Three Months Ended March 31, 2015, the NYSE Arca market value of each Share decreased 4.65% from $15.91 per Share to $15.17 per Share. The Share price high and low for the Three Months Ended March 31, 2015 and related change from the Share price on December 31, 2014 was as follows: Shares traded from a high of $15.94 per Share (+0.19%) on January 2, 2015 to a low of $14.66 per Share (-7.86%) on March 11, 2015.

For the Three Months Ended March 31, 2014, the NYSE Arca market value of each Share decreased 5.82% from $16.84 per Share to $15.86 per Share. The Share price high and low for the Three Months Ended March 31, 2014 and related change from the Share price on December 31, 2013 was as follows: Shares traded from a high of $16.85 per Share (+0.06%) on January 2, 2014, to a low of $15.36 per Share (-8.79%) on March 20, 2014.

Fund Share Net Asset Performance

For the Three Months Ended March 31, 2015, the net asset value of each Share decreased 4.94% from $15.99 per Share to $15.20 per Share. A decrease in the commodity futures contract prices for zinc, aluminum and copper during the Three Months Ended March 31, 2015 resulted in an overall 4.36% decrease in the level of the DBIQ Optimum Yield Industrial Metals Index Total Return™.

Net loss for the Three Months Ended March 31, 2015 was $9.7 million, primarily resulting from net realized loss of $14.3 million and net change in unrealized gain of $5.0 million, and operating expenses of $0.4 million.

For the Three Months Ended March 31, 2014, the net asset value of each Share decreased 5.54% from $16.78 per Share to $15.85 per Share. A decrease in the commodity futures contract prices for zinc, copper and aluminum during the Three Months Ended March 31, 2014 resulted in an overall 5.10% decrease in the level of the DBIQ Optimum Yield Industrial Metals Index Total Return™.

Net loss for the Three Months Ended March 31, 2014 was $16.0 million, primarily resulting from net realized loss of $12.7 million, net change in unrealized loss of $2.8 million, and operating expenses of $0.5 million.

Off-Balance Sheet Arrangements and Contractual Obligations

In the normal course of its business, the Fund is a party to financial instruments with off-balance sheet risk. The term “off-balance sheet risk” refers to an unrecorded potential liability that, even though it does not appear on the balance sheet, may result in a future obligation or loss. The financial instruments used by the Fund are commodity futures contracts, whose values are based upon an underlying asset and generally represent future commitments which have a reasonable possibility to be settled in cash or through physical delivery. The financial instruments are traded on an exchange and are standardized contracts.

The Fund has not utilized, nor does it expect to utilize in the future, special purpose entities to facilitate off-balance sheet financing arrangements and has no loan guarantee arrangements or off-balance sheet arrangements of any kind, other than agreements entered into in the normal course of business noted above, which may include indemnification provisions related to certain risks service providers undertake in performing services which are in the best interests of the Fund. While the Fund’s exposure under such indemnification provisions cannot be estimated, these general business indemnifications are not expected to have a material impact on the Fund’s financial position.

The Fund’s contractual obligations are with the Managing Owner and the Commodity Broker. Management Fee payments made to the Managing Owner are calculated as a fixed percentage of the Fund’s net asset value. Commission payments to the Commodity Broker are on a contract-by-contract, or round-turn, basis. As such, the Managing Owner cannot anticipate the amount of payments that will be required under these arrangements for future periods as net asset values are not known until a future date. These agreements are effective for one-year terms, renewable automatically for additional one-year terms unless terminated. Additionally, these agreements may be terminated by either party for various reasons. For the avoidance of doubt, for purposes of the reporting period up to and excluding the Closing Date, all Management Fees and commission payments were paid to the Predecessor Managing Owner. Since the Closing, the Managing Owner has served as managing owner of the Fund and Management Fee accruals since the Closing Date have been paid to the Managing Owner.

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ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

INTRODUCTION

The Fund is designed to replicate positions in a commodity index. The market sensitive instruments held by it are subject to the risk of trading loss. Unlike an operating company, the risk of market sensitive instruments is integral, not incidental, to the Fund’s main line of business.

Market movements can produce frequent changes in the fair market value of the Fund’s open positions and, consequently, in its earnings and cash flow. The Fund’s market risk is primarily influenced by changes in the price of commodities.

Value at Risk, or VaR, is a measure of the maximum amount which the Fund could reasonably be expected to lose in a given market sector. However, the inherent uncertainty in the markets in which the Fund trades and the recurrence in the markets traded by the Fund of market movements far exceeding expectations could result in actual trading or non-trading losses far beyond the indicated VaR or the Fund’s experience to date (i.e., “risk of ruin”). In light of this, as well as the risks and uncertainties intrinsic to all future projections, the inclusion of the quantification included in this section should not be considered to constitute any assurance or representation that the Fund’s losses in any market sector will be limited to VaR or by the Fund’s attempts to manage its market risk.

Standard of Materiality

Materiality as used in this section, “Quantitative and Qualitative Disclosures About Market Risk,” is based on an assessment of reasonably possible market movements and the potential losses caused by such movements, taking into account the effects of margin, and any other multiplier features, as applicable, of the Fund’s market sensitive instruments.

QUANTIFYING THE FUND’S TRADING VALUE AT RISK

Quantitative Forward-Looking Statements

The following quantitative disclosures regarding the Fund’s market risk exposures contain “forward-looking statements” within the meaning of the safe harbor from civil liability provided for such statements by the Private Securities Litigation Reform Act of 1995 (set forth in Section 27A of the Securities Act of 1933 and Section 21E of the Exchange Act). All quantitative disclosures in this section are deemed to be forward-looking statements for purposes of the safe harbor, except for statements of historical fact (such as the dollar amount of maintenance margin required for market risk sensitive instruments held at the end of the reporting period).

Value at risk, or VaR, is a statistical measure of the value of losses that would not be expected to be exceeded over a given time horizon and at a given probability level arising from movement of underlying risk factors. Loss is measured as a decline in the fair value of the portfolio as a result of changes in any of the material variables by which fair values are determined. VaR is measured over a specified holding period (1 day) and to a specified level of statistical confidence (99th percentile). However, the inherent uncertainty in the markets in which the Fund trades and the recurrence in the markets traded by the Fund of market movements far exceeding expectations could result in actual trading or non-trading losses far beyond the indicated VaR or the Fund’s experience to date (i.e., “risk of ruin”). In light of this, as well as the risks and uncertainties intrinsic to all future projections, the inclusion of the quantification included in this section should not be considered to constitute any assurance or representation that the Fund’s losses in any market sector will be limited to VaR or by the Fund’s attempts to manage its market risk.

THE FUND’S TRADING VALUE AT RISK

The Fund calculates VaR using the actual historical market movements of the Fund’s net assets.

The following table indicates the trading VaR associated with the Fund’s net assets as of March 31, 2015.

Description	Net Assets		Daily Volatility			VaR* (99 Percentile)		Three Months Ended March 31, 2015 Number of times VaR Exceeded
PowerShares DB Base Metals Fund	$	203,715,751		0.89	%	$	4,243,269		10

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The following table indicates the trading VaR associated with the Fund’s net assets as of December 31, 2014.

Description	Net Assets		Daily Volatility			VaR* (99 Percentile)		For the Year Ended December 31, 2014 Number of times VaR Exceeded
PowerShares DB Base Metals Fund	$	220,647,504		0.84	%	$	4,323,687		22

* The VaR represents the one day downside risk, under normal market conditions, with a 99% confidence level. It is calculated using historical market moves of the Fund’s net assets and uses a one year look-back.

NON-TRADING RISK

The Fund has non-trading market risk as a result of investing in short-term United States Treasury Obligations. As such, the market risk represented by these investments is expected to be immaterial.

QUALITATIVE DISCLOSURES REGARDING PRIMARY TRADING RISK EXPOSURES

The following qualitative disclosures regarding the Fund’s market risk exposures — except for those disclosures that are statements of historical fact — constitute forward-looking statements within the meaning of Section 27A of the Securities Act and Section 21E of the Exchange Act. The Fund’s primary market risk exposures are subject to numerous uncertainties, contingencies and risks. Government interventions, defaults and expropriations, illiquid markets, the emergence of dominant fundamental factors, political upheavals, changes in historical price relationships, an influx of new market participants, increased regulation and many other factors could result in material losses as well as in material changes to the risk exposures of the Fund. There can be no assurance that the Fund’s current market exposure will not change materially. Investors may lose all or substantially all of their investment in the Fund.

The following were the primary trading risk exposures of the Fund as of March 31, 2015 by Index Commodity:

Aluminum

The price of aluminum is volatile. The price movement of aluminum may be influenced by a variety of factors, including the level of global industrial activity and demand, especially relating to the transportation, packaging and building sectors, each of which significantly influences the demand, and in turn, the price of aluminum. Prices for aluminum are influenced by a number of factors including the level of economic activity in large aluminum consuming markets, political uncertainties, economic concerns and the rate of supply of new metal from producers. The production of aluminum is a power intensive process that requires large amounts of inexpensive power. Disruptions in the amount of energy available to aluminum producers could affect the supply of aluminum.

Zinc

The price of zinc is volatile and is affected by numerous factors. The price of zinc is primarily affected by the global demand for and supply of zinc. Demand for zinc is significantly influenced by the level of global industrial economic activity. The galvanized steel industrial sector is particularly important given that the use of zinc in the manufacture of galvanized steel accounts for approximately 50% of world-wide zinc demand. The galvanized steel sector is in turn heavily dependent on the automobile and construction sectors. An additional, but highly volatile component of demand, is adjustments to inventory in response to changes in economic activity and/or pricing levels. The supply of zinc concentrate (the raw material) is dominated by China, Australia, North America and Latin America. The supply of zinc is also affected by current and previous price levels, which will influence investment decisions in new mines and smelters. It is not possible to predict the aggregate effect of all or any combination of these factors.

Copper

The price of copper is volatile. The price of copper is primarily affected by the global demand for and supply of copper. Demand for copper is significantly influenced by the level of global industrial economic activity. Industrial sectors which are particularly important include the electrical and construction sectors. In recent years demand has been supported by strong consumption from newly industrializing countries, which continue to be in a copper-intensive period of economic growth as they develop their infrastructure (such as China). An additional, but highly volatile, component of demand is adjustments to inventory in response to changes in economic activity and/or pricing levels. Apart from the United States, Canada and Australia, the majority of copper concentrate supply (the raw material) comes from outside the Organization for Economic Cooperation and Development countries. Chile is the largest producer of copper concentrate. In previous years, copper supply has been affected by strikes, financial problems and terrorist activity. Output has fallen particularly sharply in the “African Copperbelt” and in Bougainville, Papua New Guinea. Any political turmoil in these countries may cause copper supply to fall.

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QUALITATIVE DISCLOSURES REGARDING NON-TRADING RISK EXPOSURE

General

The Fund is unaware of any (i) anticipated known demands, commitments or capital expenditures; (ii) material trends, favorable or unfavorable, in its capital resources; or (iii) trends or uncertainties that will have a material effect on operations.

QUALITATIVE DISCLOSURES REGARDING MEANS OF MANAGING RISK EXPOSURE

Under ordinary circumstances, the Managing Owner’s discretionary power is limited to determining whether the Fund will make a distribution. Under emergency or extraordinary circumstances, the Managing Owner’s discretionary powers increase, but remain circumscribed. These special circumstances, for example, include the unavailability of the Index or certain natural or man-made disasters. The Managing Owner does not actively manage the Fund to avoid losses. The Fund initiates positions only on the “long” side of the market and does not employ “stop-loss” techniques.

ITEM 4. CONTROLS AND PROCEDURES.

Evaluation of Disclosure Controls and Procedures

Under the supervision and with the participation of the management of the Managing Owner, including Andrew Schlossberg, its Principal Executive Officer, and Steven Hill, its Principal Financial and Accounting Officer, Investment Pools, the Fund carried out an evaluation of the effectiveness of the design and operation of its disclosure controls and procedures (as defined in Rule 13a-15(e) or 15d-15(e) of the Exchange Act) as of the end of the period covered by this quarterly report, and, based upon that evaluation, Andrew Schlossberg, the Principal Executive Officer, and Steven Hill, the Principal Financial and Accounting Officer, Investment Pools, of the Managing Owner, concluded that the Fund’s disclosure controls and procedures were effective to ensure that information the Fund is required to disclose in the reports that it files or submits with the Securities and Exchange Commission (the “SEC”) under the Exchange Act is recorded, processed, summarized and reported, within the time periods specified in the SEC’s rules and forms, and to ensure that information required to be disclosed by the Fund in the reports that it files or submits under the Exchange Act is accumulated and communicated to management of the Managing Owner, including its Principal Executive Officer and Principal Financial and Accounting Officer, Investment Pools, as appropriate to allow timely decisions regarding required disclosure.

Changes in Internal Control Over Financial Reporting

There has been no change in internal control over financial reporting (as defined in the Rules 13a-15(f) and 15d-15(f) of the Exchange Act) that occurred during the Fund’s quarter ended March 31, 2015 that has materially affected, or is reasonably likely to materially affect, the Fund’s internal control over financial reporting.

PART II. OTHER INFORMATION

Item 1. Legal Proceedings.

Not applicable.

Item 1A. Risk Factors.

There are no material changes from risk factors as previously disclosed in the Annual Report on Form 10-K for the year ended December 31, 2014, filed March 9, 2015.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds.

(a) There have been no unregistered sales of the Fund’s securities. No Fund securities are authorized for issuance by the Fund under equity compensation plans.

(b) Not applicable.

(c) The following table summarizes the redemptions by Authorized Participants during the Three Months Ended March 31, 2015:

Period of Redemption	Total Number of Shares  Redeemed		Average Price Paid per  Share
January 1, 2015 to January 31, 2015		2,200,000	$	15.38
February 1, 2015 to February 28, 2015		800,000	$	15.39
March 1, 2015 to March 31, 2015		400,000		14.93
Total		3,400,000	$	15.33

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Item 3. Defaults Upon Senior Securities.

None.

Item 4. Mine Safety Disclosures.

Not applicable.

Item 5. Other Information.

Neither the Managing Owner nor any affiliates of the Managing Owner engaged in any activities as defined under Section 13(r) of the U.S. Securities Exchange Act of 1934, as amended, during the reporting periods covered by this report.

Deutsche Bank AG, the ultimate parent company of the Predecessor Managing Owner, has provided us the disclosure set forth below describing the ITRA-relevant activities of it and its affiliates for the Three Months Ended March 31, 2015. All references in this quoted disclosure to “we,” “us” and “our” are to Deutsche Bank AG and its affiliates. None of the disclosed activities or transactions were conducted by the Registrant.

Disclosures Under Iran Threat Reduction and Syria Human Rights Act of 2012

Under Section 219 of the Iran Threat Reduction and Syria Human Rights Act of 2012, which added Section 13(r) of the U.S. Securities Exchange Act of 1934, as amended, an issuer of securities registered under the Securities Exchange Act of 1934 is required to disclose in its periodic reports filed under the Securities Exchange Act of 1934 certain of its activities and those of its affiliates relating to Iran and to other persons sanctioned by the U.S. under programs relating to terrorism and proliferation of weapons of mass destruction that occurred during the period covered by the report. We describe below a number of potentially disclosable activities of Deutsche Bank AG and its affiliates. Disclosure is generally required regardless of whether the activities, transactions or dealings were conducted in compliance with applicable law.

Legacy Financing Arrangements. Despite having ceased entering into new business in or with Iran in 2007, we continue to be engaged as lender, sponsoring bank and/or facility agent or arranger in several long-term financing agreements relating to the construction or acquisition of plant or equipment for the petroleum and petrochemical industries, under which Iranian entities were the direct or indirect borrowers. Before 2007, as part of banking consortia, we entered into a number of financing arrangements, three of which remained outstanding as of March 31, 2015, with the National Petrochemical Company (NPC) and its group entities as borrowers. The latest final maturity under these loan facilities is in 2019. These loan facilities were guaranteed by national export credit agencies representing two European governments. In principle, the obligations of the borrowers under these loan facilities are secured by assignments of receivables from oil and oil products exported by NPC and/or its trading subsidiaries to buyers, mostly in Asia. These delivery obligations, however, were waived for the period covered by this report, because of the current sanctions environment. For some of these arrangements, we act as escrow agent, holding escrow accounts for the Iranian borrowers mentioned above, into which receivables are, in principle, paid by the buyers of the oil and oil products. During the period covered by this report, no such receivables were paid to the said escrow accounts. Such accounts are pledged in favor of the relevant banking consortium. We have no involvement in the contractual arrangements related to, or in the physical settlement of, the oil and oil product exports mentioned above. Iranian entities in whose names the escrow accounts are held are not permitted to draw on such accounts, either because they are sanctioned parties or, where this is not the case, because of our business decision to not allow access to such accounts in light of the overall sanctions environment.

During the first quarter of 2015, approximately € 9.0 million were paid into the escrow account. We in our role as agent distributed to the participants in the banking consortia approximately € 2.2 million, including the portion attributable to us totaling € 1.5 million.

In the first quarter of 2015 we generated revenues of approximately € 170,000 in respect of these financing arrangements, of which approximately € 125,000 consisted of escrow account revenues, € 30,000 consisted of loan interest revenues and € 14,000 consisted of fee revenues. The net profits were less than these amounts.

As of March 31, 2015, we have an undrawn commitment of approximately € 1.3 million under one of the financing agreements referred to above. Due to the export credit agency coverage, this remainder cannot be cancelled without German government approval, for which we have applied but which we have not yet received. We do not intend to make further disbursements upon this undrawn commitment.

Our portion of the outstanding principal amount of the remaining loan facilities amounted to approximately € 22 million as of March 31, 2015. We intend to continue pursuing repayment and fulfilling our administrative role under these agreements, but we do not intend to engage in any new extensions of credit to these or other Iranian entities.

Legacy Contractual Obligations Related to Guarantees and Letters of Credit. Prior to 2007, we provided guarantees to a number of Iranian entities. In almost all of these cases, we issued counter-indemnities in support of guarantees issued by Iranian banks because the Iranian beneficiaries of the guarantees required that they be backed directly by Iranian banks. In 2007, we made a decision to discontinue issuing new guarantees to Iranian or Iran-related beneficiaries. Although the pre-existing guarantees stipulate that they must be either extended or honored if we receive such a demand and we are legally not able to terminate these guarantees, we decided in 2011 to reject any “extend or pay” demands under such guarantees. Even though we exited, where possible, many of these guarantees, guarantees with an aggregate face amount of approximately € 7.6 million are still outstanding as of March 31, 2015. The gross revenues from this business were approximately € 11,000 and the net profit we derived from these activities was less than this amount.

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We also have outstanding legacy guarantees in relation to a Syrian bank sanctioned by the U.S. under its non-proliferation program. The aggregate face amount of these legacy guarantees was approximately € 10 million as of March 31, 2015, the gross revenues received from non-Syrian parties for these guarantees were approximately € 29,000 and the net profit we derived from these activities was less than this amount. In one case we paid cancellation fees of less than € 300 to the frozen account of the Syrian bank.

We intend to exit these guarantee arrangements as soon as possible.

Payments Received. In the first quarter of 2015, we received less than 10 payments adding up to approximately € 2.5 million in favor of non-Iranian clients in Germany and the Netherlands, which payments stemmed ultimately from relevant Iranian entities. Revenues for these incoming payments were less than € 2,000. These figures include relevant payments in favor of clients of our subsidiary Postbank. We expect that we will also have to execute such transactions in the future.

On behalf of one of our clients in Poland we transferred to an account of the Iranian embassy in Poland, held by another bank, two payments in sum of approximately € 100. We do not intend to make such payments in the future.

Operations of Iranian Bank Branches and Subsidiaries in Germany and/or France. Several Iranian banks, including Bank Melli Iran, Bank Saderat, Bank Tejarat and Europäisch-Iranische Handelsbank, have branches or offices in Germany and/or France, even though their funds and other economic resources are frozen under European law. As part of the payment clearing system in Germany and other European countries, when these branches or offices need to make payments in Germany or Europe to cover their day-to-day operations such as rent, taxes, insurance premia and salaries for their remaining staff, or for any other kind of banking-related operations necessary to wind down their legacy trade business, the German Bundesbank and French banks accept fund transfers from these Iranian banks and disburse them to the applicable (mainly German) payees, some of whom hold accounts with us. In the first quarter of 2015, we received approximately € 2.1 million in such disbursements in approximately 300 transactions via the German Bundesbank and French banks in respect of payments from the above-mentioned Iranian banks, and the gross revenues derived from these payments were less than € 1,000. Relevant transactions of our subsidiary Postbank are included in these figures. We expect that we will also have to execute such transactions in the future.

Maintaining of Accounts for Iranian Consulates and Embassies. In the first quarter of 2015, Iranian embassies and consulates in Germany and the Netherlands were holding accounts with us as well as with Postbank. This includes the provision by a subsidiary of Postbank to the Iranian consulate of girocard (debitcard/ATM)-terminals as well as the processing of transactions of cardholders using the terminals; the terminals are used to facilitate the payment of fees for the issuance of visas and other administrative measures by the consulate. The additional purpose of these accounts was the funding of day-to-day operational costs of the embassies and consulates, such as salaries, rent, and electricity. One of the account relationships was between Deutsche Bank Netherlands N.V. and the Agent Bureau of the Embassy of the Islamic Republic of Iran in The Hague (which is responsible for all Iran-U.S. Claims Tribunal activities). The total volume of outgoing payments from these accounts was approximately € 6.2 million as of March 31, 2015, which payments were made with the involvement of the competent authorities in the relevant European countries under applicable law. We derived gross revenues of approximately € 4,500 and net profits which were less than this amount from these activities. Deutsche Bank in the Netherlands will discontinue providing these services, Deutsche Bank in Germany will continue to provide these services in the future to enable the Government of Iran to conduct its diplomatic relations in Germany.

Activities of Entities in Which We Have Interests. Section 13(r) requires us to provide the specified disclosure with respect to ourselves and our “affiliates,” as defined in Exchange Act Rule 12b-2. Although we have minority equity interests in certain entities that could arguably result in these entities being deemed “affiliates,” we do not have the authority or the legal ability to acquire in every instance the information from these entities that would be necessary to determine whether they are engaged in any disclosable activities under Section 13(r). In some cases, legally independent entities are not permitted to disclose the details of their activities to us because of German privacy and data protection laws or the applicable banking laws and regulations. In such cases, voluntary disclosure of such details could violate such legal and/or regulatory requirements and subject the relevant entities to criminal prosecution or regulatory investigations.

33

Item 6. Exhibits.

31.1	Certification required under Exchange Act Rules 13a-14 and 15d-14 (filed herewith)
31.2	Certification required under Exchange Act Rules 13a-14 and 15d-14 (filed herewith)
32.1	Certification of Chief Executive Officer pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith)
32.2	Certification of Chief Financial Officer pursuant to 18 U.S.C. Section 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (furnished herewith)
101	Interactive data file pursuant to Rule 405 of Regulation S-T: (i) the Statements of Financial Condition of PowerShares DB Base Metals Fund — March 31, 2015 (unaudited) and December 31, 2014, (ii) the Unaudited Schedule of Investments of PowerShares DB Base Metals Fund — March 31, 2015, (iii) the Schedule of Investments of PowerShares DB Base Metals Fund — December 31, 2014, (iv) the Unaudited Statements of Income and Expenses of PowerShares DB Base Metals Fund — Three Months Ended March 31, 2015 and 2014, (v) the Unaudited Statements of Changes in Shareholders’ Equity of PowerShares DB Base Metals Fund — Three Months Ended March 31, 2015, (vi) the Unaudited Statements of Changes in Shareholders’ Equity of PowerShares DB Base Metals Fund — Three Months Ended March 31, 2014, (vii) and the Unaudited Statements of Cash Flows of PowerShares DB Base Metals Fund — Three Months Ended March 31, 2015 and 2014, and (viii) Notes to Unaudited Financial Statements of PowerShares DB Base Metals Fund.

34

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.

PowerShares DB Multi-Sector Commodity Trust with respect to PowerShares DB Base Metals Fund
By:	DB Commodity Services LLC, its Managing Owner

By:	/S/    ANDREW SCHLOSSBERG
Name: Title:	Andrew Schlossberg Principal Executive Officer

By:	/S/    STEVEN HILL
Name: Title:	Steven Hill Principal Financial and Accounting Officer, Investment Pools

Dated: May 8, 2015

35

EX-31.1

Exhibit 31.1

CERTIFICATION

I, Andrew Schlossberg, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of PowerShares DB Base Metals Fund, a series of PowerShares DB Multi-Sector Commodity Trust;

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

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

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

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

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

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

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

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

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

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

Dated: May 8, 2015

/S/    ANDREW SCHLOSSBERG

Andrew Schlossberg

Principal Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Steven Hill, certify that:

1. I have reviewed this Quarterly Report on Form 10-Q of PowerShares DB Base Metals Fund, a series of PowerShares DB Multi-Sector Commodity Trust;

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

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

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

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

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

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

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

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

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

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

Dated: May 8, 2015

/S/    STEVEN HILL

Steven Hill

Principal Financial and Accounting Officer, Investment Pools

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

The undersigned, Andrew Schlossberg, Principal Executive Officer of Invesco PowerShares Capital Management LLC, the Managing Owner of PowerShares DB Base Metals Fund (the “Fund”), a series of PowerShares DB Multi-Sector Commodity Trust, hereby certifies pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Fund’s Quarterly Report on Form 10-Q for the period ended March 31, 2015, as filed with the Securities and Exchange Commission on the date hereof (the “Quarterly Report”), fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

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

Dated: May 8, 2015

/S/    ANDREW SCHLOSSBERG

Andrew Schlossberg

Principal Executive Officer

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

The undersigned, Steven Hill, Principal Financial and Accounting Officer, Investment Pools, of Invesco PowerShares Capital Management LLC, the Managing Owner of PowerShares DB Base Metals Fund (the “Fund”), a series of PowerShares DB Multi-Sector Commodity Trust, hereby certifies pursuant to 18 U.S.C. 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:

(1) The Fund’s Quarterly Report on Form 10-Q for the period ended March 31, 2015, as filed with the Securities and Exchange Commission on the date hereof (the “Quarterly Report”), fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

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

Dated: May 8, 2015

/S/    STEVEN HILL

Steven Hill

Principal Financial and Accounting Officer, Investment Pools

XML

Summary of Significant Accounting Policies - Summary of Gross and Net Amounts of Offsetting Assets and Liabilities (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Offsetting [Abstract]
Gross Amounts of Recognized Assets	$ 2,463,668
Gross Amounts Offset Assets in the Statement of Financial Condition Assets	(2,463,668)
Net Amounts of Assets Presented in the Statement of Financial Condition	0
Gross Amounts Not Offset in the Statement of Financial Condition - Financial Instruments Assets	0
Gross Amounts Not Offset in the Statement of Financial Condition - Cash Collateral Pledged Assets	0
Assets Net Amount	2,463,668
Gross Amounts of Recognized Liabilities	(10,961,281)	(13,474,175)
Gross Amount Offset Liabilities in the Statement of Financial Condition	2,463,668
Net Amounts of Liabilities Presented in the Statement of Financial Condition	(8,497,613)	(13,474,175)
Gross Amounts Not Offset in the Statement of Financial Condition - Financial Instruments Liabilities	8,497,613
Gross Amounts Not Offset in the Statement of Financial Condition - Cash Collateral Pledged Liabilities		13,474,175
Liabilities Net Amount	$ (10,961,281)	$ (13,474,175)

XML

Background - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2015 Trust
Related Party Transactions [Abstract]
Number of series of trusts	7
Purchase agreement transaction date	Feb. 23, 2015

XML

Net Asset Value and Financial Highlights - Summary of Net Asset Value Per Share (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Net Asset Value
Net asset value per Share, beginning of period	$ 15.99	$ 16.78
Net realized and change in unrealized gain (loss) on United States Treasury Obligations and Commodity Futures Contracts	$ (0.76)	$ (0.90)
Net investment income (loss)	$ (0.03)	$ (0.03)
Net income (loss)	$ (0.79)	$ (0.93)
Net asset value per Share, end of period	$ 15.20	$ 15.85
Market value per Share, beginning of period	$ 15.91	$ 16.84
Market value per Share, end of period	$ 15.17	$ 15.86
Ratio to average Net Assets
Net investment income (loss)	(0.80%)	(0.73%)
Total expenses	0.82%	0.77%
Total Return, at net asset value	(4.94%)	(5.54%)
Total Return, at market value	(4.65%)	(5.82%)

XML

Statement of Changes in Shareholders Equity (Unaudited) (USD $)	Total USD ($)	General Shares [Member]	General Shares [Member] Total Equity [Member] USD ($)	Shares [Member]	Shares [Member] Total Equity [Member] USD ($)
Balance, Value at Dec. 31, 2013	$ 234,895,069		$ 671		$ 234,894,398
Balance Shares at Dec. 31, 2013		40		14,000,000
Sale of Shares, Value	104,645,950				104,645,950
Sale of Shares, Shares				6,400,000
Redemption of Shares, Value	(19,268,532)				(19,268,532)
Redemption of Shares, Shares				(1,200,000)
Net Increase (Decrease) due to Share Transactions, Value	85,377,418				85,377,418
Net Increase (Decrease) due to Share Transactions, Shares				5,200,000
Net Income (Loss)
Net investment income (loss)	(485,714)		(1)		(485,713)
Net realized gain (loss) on United States Treasury Obligations and Commodity Futures Contracts	(12,668,046)		(29)		(12,668,017)
Net change in unrealized gain (loss) on United States Treasury Obligations and Commodity Futures Contracts	(2,811,150)		(7)		(2,811,143)
Net Income (Loss)	(15,964,910)		(37)		(15,964,873)
Net Change in Shareholders' Equity, Value	69,412,508		(37)		69,412,545
Net Change in Shareholders' Equity, Shares				5,200,000
Balance, Value at Mar. 31, 2014	304,307,577		634		304,306,943
Balance, Shares at Mar. 31, 2014		40		19,200,000
Balance, Value at Dec. 31, 2014	220,647,504		640		220,646,864
Balance Shares at Dec. 31, 2014		40		13,800,000
Sale of Shares, Value	44,894,499				44,894,499
Sale of Shares, Shares				3,000,000
Redemption of Shares, Value	(52,121,494)				(52,121,494)
Redemption of Shares, Shares				(3,400,000)
Net Increase (Decrease) due to Share Transactions, Value	(7,226,995)				(7,226,995)
Net Increase (Decrease) due to Share Transactions, Shares				(400,000)
Net Income (Loss)
Net investment income (loss)	(353,749)		(1)		(353,748)
Net realized gain (loss) on United States Treasury Obligations and Commodity Futures Contracts	(14,326,345)		(47)		(14,326,298)
Net change in unrealized gain (loss) on United States Treasury Obligations and Commodity Futures Contracts	4,975,336		16		4,975,320
Net Income (Loss)	(9,704,758)		(32)		(9,704,726)
Net Change in Shareholders' Equity, Value	(16,931,753)		(32)		(16,931,721)
Net Change in Shareholders' Equity, Shares				(400,000)
Balance, Value at Mar. 31, 2015	$ 203,715,751		$ 608		$ 203,715,143
Balance, Shares at Mar. 31, 2015		40		13,400,000

XML

Summary of Significant Accounting Policies - Summary of the Tiered Valuation Input Levels (Detail) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
United States Treasury Obligations	$ 230,992,371	$ 236,994,724
Commodity Futures Contracts	(8,497,613)	(13,474,175)
Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
United States Treasury Obligations		236,994,724
Commodity Futures Contracts	(8,497,613)
Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
United States Treasury Obligations	230,992,371
Commodity Futures Contracts		$ (13,474,175)

XML

Service Providers and Related Party Agreements - Additional Information (Detail) (USD $)	0 Months Ended	3 Months Ended
	Feb. 26, 2015	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Related Party Transaction [Line Items]
Management fee percentage per annum of daily net asset		0.75%
Management Fees		$ 332,543	$ 500,509
Management Fees payable		112,104		130,925
Brokerage fees		30,186	15,020
Brokerage fees payable		878		4,635
United States Treasury Obligations		230,992,371		236,994,724
Cash held with commodity broker		0		27,364,752
United States Treasury Obligations transferred to commodity broker	51,994,800
Cash and cash equivalent deposited with custodian		57,715,989
Bank of New York Mellon [Member]
Related Party Transaction [Line Items]
Fund assets held by custodian				0
Cash transferred to custodian	31,802,760
United States Treasury Obligations transferred to custodian	155,996,427
Cash and cash equivalent deposited with custodian		236,713,560
Percentage of cash and cash equivalent deposited with custodian		84.48%
Deutsche Bank Securities Inc [Member]
Related Party Transaction [Line Items]
Brokerage fees		30,186	15,020
Brokerage fees payable		878		4,635
United States Treasury Obligations				236,994,724
Cash held with commodity broker				$ 27,364,752

XML

Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Treasury Obligations Transferred from Level 1 to Level 2	$ 23,000,000
LME Commodity Futures Contracts Transferred from Level 2 to Level 1	(8,966,300)
Payable for securities purchased	69,995,134		22,997,987
Cash held with commodity broker	0		27,364,752
Cash equivalents held	0		0
Cash and cash equivalents, original maturities, maximum number of months	3 months		3 months
Payable to the Commodity Broker for LME Contract	6,386,880		7,104,250
Average charges paid to broker per round-turn trade, maximum	19.00	10.00
US Treasury Securities Purchased But Not Yet Paid [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Face amount of debt purchased	70,000,000		23,000,000
Payable for securities purchased	$ 69,995,134		$ 22,997,987

XML

Summary of Significant Accounting Policies - Fair Value of Derivative Instruments and Effect of Derivative Instruments on Statements of Income and Expenses (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Commodity Futures Contracts Assets	$ 2,463,668
Commodity Futures Contracts Liabilities	(10,961,281)		(13,474,175)
Net Realized Gain (Loss)	(14,326,530)	(12,668,256)
Net Change in Unrealized Gain (Loss)	4,976,562	(2,812,750)
Net realized and net change in unrealized gain (loss) on United States Treasury Obligations and Commodity Futures Contracts	(9,351,009)	(15,479,196)
Commodity Contract [Member]
Derivative Instruments and Hedging Activities Disclosures [Line Items]
Net Realized Gain (Loss)	(14,326,530)	(12,668,256)
Net Change in Unrealized Gain (Loss)	4,976,562	(2,812,750)
Net realized and net change in unrealized gain (loss) on United States Treasury Obligations and Commodity Futures Contracts	$ (9,349,968)	$ 15,481,006

XML

Statements of Income and Expenses (Unaudited) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Income
Interest Income	$ 8,980	$ 29,815
Expenses
Management Fee	332,543	500,509
Brokerage Commissions and Fees	30,186	15,020
Total expenses	362,729	515,529
Net investment income (loss)	(353,749)	(485,714)
Net Realized Gain (Loss) on
United States Treasury Obligations	185	210
Commodity Futures Contracts	(14,326,530)	(12,668,256)
Net realized gain (loss)	(14,326,345)	(12,668,046)
Net Change in Unrealized Gain (Loss) on
United States Treasury Obligations	(1,226)	1,600
Commodity Futures Contracts	4,976,562	(2,812,750)
Net change in unrealized gain (loss)	4,975,336	(2,811,150)
Net realized and net change in unrealized gain (loss) on United States Treasury Obligations and Commodity Futures Contracts	(9,351,009)	(15,479,196)
Net Income (Loss)	$ (9,704,758)	$ (15,964,910)

XML

Summary of Significant Accounting Policies - Summary of Average Monthly Notional Value of Future Contracts Outstanding (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Notional Disclosures [Abstract]
Average Notional Value	$ 197,433,170	$ 285,743,069

XML

Statements of Financial Condition (Unaudited) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Assets
United States Treasury Obligations, at fair value (cost $230,991,966 and $236,993,093, respectively)	$ 230,992,371	$ 236,994,724
Cash held by commodity broker	0	27,364,752
Cash held by custodian	57,715,989
Net unrealized appreciation (depreciation) on commodity futures contracts	(8,497,613)	(13,474,175)
Total assets (of which $43,497,187 and $18,366,219, respectively, is restricted for maintenance margin purposes)	280,210,747	250,885,301
Liabilities
Payable for LME contracts	6,386,880	7,104,250
Payable for securities purchased	69,995,134	22,997,987
Management fee payable	112,104	130,925
Brokerage fee payable	878	4,635
Total liabilities	76,494,996	30,237,797
Commitments and Contingencies (Note 9)
Equity
Shareholders' equity - General Shares	608	640
Shareholders' equity - Shares	203,715,143	220,646,864
Total shareholders' equity	203,715,751	220,647,504
Total liabilities and equity	$ 280,210,747	$ 250,885,301
General Shares outstanding	40	40
Shares outstanding	13,400,000	13,800,000
Net asset value per share
General Shares	$ 15.20	$ 15.99
Shares	$ 15.20	$ 15.99

XML

Schedule of Investments (Unaudited) - Future Contracts (USD $)	Mar. 31, 2015		Dec. 31, 2014
LME Aluminum (1,605 contracts, settlement date October 19, 2015) [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation/(Depreciation) as a Percentage of Shareholders' Equity			(4.44%)
Unrealized Appreciation/ (Depreciation)			$ (9,797,319)	[1]
Notional Market Value			75,665,719
LME Copper (494 contracts, settlement date February 16, 2015) [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation/(Depreciation) as a Percentage of Shareholders' Equity			(0.61%)
Unrealized Appreciation/ (Depreciation)			(1,336,762)	[1]
Notional Market Value			78,138,450
LME Zinc (1,467 contracts, settlement date February 16, 2015 [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation/(Depreciation) as a Percentage of Shareholders' Equity			(1.06%)
Unrealized Appreciation/ (Depreciation)			(2,340,094)	[1]
Notional Market Value			79,630,594
Total Commodity Futures Contracts [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation/(Depreciation) as a Percentage of Shareholders' Equity	(4.17%)		(6.11%)
Unrealized Appreciation/ (Depreciation)	(8,497,613)	[1]	(13,474,175)	[1]
Notional Market Value	203,712,900		233,434,763
LME Aluminum (1,464 contracts, settlement date October 19, 2015) [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation/(Depreciation) as a Percentage of Shareholders' Equity	(4.40%)
Unrealized Appreciation/ (Depreciation)	(8,966,300)	[1]
Notional Market Value	66,172,800
LME Copper (454 contracts, settlement date June 15, 2015) [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation/(Depreciation) as a Percentage of Shareholders' Equity	1.21%
Unrealized Appreciation/ (Depreciation)	2,463,668	[1]
Notional Market Value	68,650,475
LME Zinc (1,310 contracts, settlement date February 15, 2016) [Member]
Schedule of Investments [Line Items]
Unrealized Appreciation/(Depreciation) as a Percentage of Shareholders' Equity	(0.98%)
Unrealized Appreciation/ (Depreciation)	(1,994,981)	[1]
Notional Market Value	$ 68,889,625

[1] Unrealized appreciation/ (depreciation) is presented above, net by contract.

XML

Profit and Loss Allocations and Distributions - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Earnings Per Share [Abstract]
Distributed Earnings	$ 0	$ 0

XML

Summary of Significant Accounting Policies (Policies)

3 Months Ended

Mar. 31, 2015

Accounting Policies [Abstract]

Basis of Presentation

(a) Basis of Presentation

The Fund has determined that it meets the definition of an investment company and has prepared the unaudited financial statements in conformity with U.S. GAAP for investment companies in conformity with accounting and reporting guidance of the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification Topic 946—Investment Companies.

In August 2014, the FASB issued a new standard, Accounting Standards Update No. 2014-15 Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern, which will explicitly require management to assess an entity’s ability to continue as a going concern and to provide related footnote disclosure in certain circumstances. This new guidance is effective for all entities in the first annual reporting period ending after December 15, 2016. The Fund is currently evaluating this guidance and its impact on the Fund’s financial statement disclosures.

Use of Estimates

(b) Use of Estimates

The preparation of the financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses and related disclosure of contingent assets and liabilities during the reporting period of the financial statements and accompanying notes. Actual results could differ from those estimates. There were no significant estimates used in the preparation of these financial statements.

Financial Instruments and Fair Value

(c) Financial Instruments and Fair Value

United States Treasury Obligations and commodity futures contracts are recorded in the statements of financial condition on a trade date basis at fair value with changes in fair value recognized in earnings in each period. U.S. GAAP defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, under current market conditions.

U.S. GAAP establishes a hierarchy that prioritizes the inputs to valuation methods, giving the highest priority to readily available unadjusted quoted prices in an active market for identical assets (Level 1) and the lowest priority to significant unobservable inputs (Level 3), generally when market prices are not readily available or are unreliable. Based on the valuation inputs, the securities or other investments are tiered into one of three levels. Changes in valuation methods or market conditions may result in transfers in or out of an investment’s assigned level:

Level 1—Prices are determined using quoted prices in an active market for identical assets.

Level 2—Prices are determined using other significant observable inputs. Observable inputs are inputs that other market participants may use in pricing a security. These may include quoted prices for similar securities, interest rates, prepayment speeds, credit risk, yield curves, loss severities, default rates, discount rates, volatilities and others.

Level 3—Prices are determined using significant unobservable inputs. In situations where quoted prices or observable inputs are unavailable (for example, when there is little or no market activity for an investment at the end of the period), unobservable inputs may be used. Unobservable inputs reflect the Fund’s own assumptions about the factors market participants would use in determining fair value of the securities or instruments and would be based on the best available information.

The levels assigned to the securities valuations may not be an indication of the risk or liquidity associated with investing in those securities. Because of the inherent uncertainties of valuation, the values reflected in the financial statements may materially differ from the value received upon actual sale of those investments.

The following is a summary of the tiered valuation input levels as of March 31, 2015:

	Level 1			Level 2		Level 3		Total
United States Treasury Obligations	$	—		$	230,992,371	$	—	$	230,992,371
Commodity Futures Contracts(a)	$	(8,497,613	)	$	—	$	—	$	(8,497,613	)

(a) Unrealized appreciation (depreciation).

The Fund’s policy is to recognize transfers in and out of the valuation levels as of the end of the reporting period. Effective on the Closing Date, the Fund revised certain policies with respect to level classification. As a result, United States Treasury Obligations were transferred from Level 1 to Level 2 and LME commodity futures contracts were transferred from Level 2 to Level 1. Treasury Obligations of $23,000,000 were transferred from Level 1 to Level 2 during the period. LME commodity futures contracts of $(8,966,300) were transferred from Level 2 to Level 1 during the period.

The following is a summary of the tiered valuation input levels as of December 31, 2014:

	Level 1		Level 2			Level 3		Total
United States Treasury Obligations	$	236,994,724	$	—		$	—	$	236,994,724
Commodity Futures Contracts(a)	$	—	$	(13,474,175	)	$	—	$	(13,474,175	)

(a) Unrealized appreciation (depreciation).

Deposits with Commodity Broker

(d) Deposits with Commodity Broker

The Fund deposits cash and United States Treasury Obligations with its Commodity Broker subject to CFTC regulations and various exchange and broker requirements. The combination of the Fund’s deposits with its Commodity Broker of cash and United States Treasury Obligations and the unrealized profit or loss on open commodity futures contracts (variation margin) represents the Fund’s overall equity in its broker trading account. To meet the Fund’s initial margin requirements, the Fund holds United States Treasury Obligations. The Fund uses its cash held by the Commodity Broker to satisfy variation margin requirements. The Fund earns interest on its cash deposited with the Commodity Broker.

Deposits with Custodian

(e) Deposits with Custodian

The combination of the Fund’s deposits with its Custodian of cash and United States Treasury Obligations represents the Fund’s overall assets held with its Custodian.

United States Treasury Obligations

(f) United States Treasury Obligations

The Fund records purchases and sales of United States Treasury Obligations on a trade date basis. These holdings are marked to market based on quoted market closing prices. The Fund holds United States Treasury Obligations for deposit with the Fund’s Commodity Broker to meet margin requirements and for trading purposes. Interest income is recognized on an accrual basis when earned. Premiums and discounts are amortized or accreted in interest income over the life of the United States Treasury Obligations. The Fund purchased $70,000,000 face amount of United States Treasury Obligations valued at $69,995,134 which was recorded as a payable for securities purchased as of March 31, 2015. The Fund purchased $23,000,000 face amount of United States Treasury Obligations valued at $22,997,987 which was recorded as a payable for securities purchased as of December 31, 2014.

Cash Held by Commodity Broker

(g) Cash Held by Commodity Broker

The Fund’s arrangement with the Commodity Broker requires the Fund to meet its variation margin requirement related to the price movements, both positive and negative, on commodity futures contracts held by the Fund by keeping cash on deposit with the Commodity Broker. The Fund assesses its variation margin on a daily basis and additional cash required to satisfy the variation margin requirement is transferred from the Custodian to the Commodity Broker at the close of business each day. Effective February 24, 2015, only the current day’s variation margin receivable or payable is disclosed as an asset or liability on the Statement of Financial Condition. The Fund defines cash and cash equivalents to be highly liquid investments, with original maturities of three months or less when purchased. As of December 31, 2014, the Fund had cash held with the Predecessor Commodity Broker of $27,364,752, which was on deposit to satisfy the Fund’s variation margin requirement on open commodity futures contracts. There was no cash held with the Commodity Broker at March 31, 2015. There were no cash equivalents held by the Fund as of March 31, 2015 and December 31, 2014.

Receivable/(Payable) for LME Contracts

(h) Receivable/(Payable) for LME Contracts

The Fund trades aluminum, copper and zinc commodity future contracts on the London Metals Exchange (“LME”). For settlement of commodity futures contracts traded on the LME, cash is not transferred until the settled commodity futures contracts expire. As of March 31, 2015, the Fund had a payable to the Commodity Broker of $6,386,880 related to net realized losses on LME contracts, which have been closed out but the contract is not yet expired. As of December 31, 2014, the Fund had a payable to the Predecessor Commodity Broker for contracts on the LME of $7,104,250 related to net realized losses on LME contracts.

Receivable/(Payable) for Shares Issued and Redeemed

(i) Receivable/(Payable) for Shares Issued and Redeemed

On any business day, an Authorized Participant may place an order to create or redeem Shares of the Fund. Cash settlement occurs at the creation order settlement date or the redemption order settlement date as discussed in Note 7.

Income Taxes

(j) Income Taxes

The Fund is classified as a partnership for U.S. federal income tax purposes. Accordingly, the Fund will not incur U.S. federal income taxes. No provision for federal, state, and local income taxes has been made in the accompanying financial statements, as investors are individually liable for income taxes, if any, on their allocable share of the Fund’s income, gain, loss, deductions and other items.

The Managing Owner has reviewed all of the Fund’s open tax years and major jurisdictions and concluded that there is no tax liability resulting from unrecognized tax benefits relating to uncertain income tax positions taken or expected to be taken in future tax returns. The Fund is also not aware of any tax positions for which it is reasonably possible that the total amounts of unrecognized tax benefits will significantly change in the next twelve months. On an ongoing basis, management will monitor its tax positions taken under the interpretation (and consult with its tax counsel from time to time when appropriate) to determine if adjustments to conclusions are necessary based on factoring including, but not limited to, on-going analysis of tax law, regulation, and interpretations thereof. The major tax jurisdiction for the Fund and the earliest tax year subject to examination: United States, 2011.

Commodity Futures Contracts

(k) Commodity Futures Contracts

All commodity futures contracts are held and used for trading purposes. Commodity futures contracts are recorded on trade date basis and open contracts are recorded in the statement of financial condition at fair value on the last business day of the period, which represents market value for those commodity futures contracts for which market quotes are readily available. However, when market closing prices are not available, the Managing Owner may value an asset of the Fund pursuant to policies the Managing Owner has adopted, which are consistent with normal industry standards. Realized gains (losses) and changes in unrealized appreciation (depreciation) on open positions are determined on a specific identification basis and recognized in the statement of income and expenses in the period in which the contract is closed or the changes occur, respectively.

The Value of Derivative Instruments is as follows:

	March 31, 2015						December 31, 2014
Risk Exposure/Derivative Type	Assets			Liabilities			Assets		Liabilities
Commodity risk
Commodity Futures Contracts	$	2,463,668	(a)	$	(10,961,281	)(a)	$	—	$	(13,474,175	)(b)

(a) Includes cumulative appreciation (depreciation) of commodity futures contracts. Only current day’s variation margin receivable (payable) is reported in the March 31, 2015 Statement of Financial Condition.

(b) Values are disclosed on the December 31, 2014 Statement of Financial Condition under Net Unrealized appreciation (depreciation) on commodity futures contracts.

The Effect of Derivative Instruments on the Statements of Income and Expenses is as follows:

Risk Exposure/Derivative Type	Location of Gain or (Loss) on Derivatives Recognized in Income	For the Three Months Ended March 31, 2015			For the Three Months Ended March 31, 2014
Commodity risk
Commodity Futures Contracts	Net Realized Gain (Loss)	$	(14,326,530	)	$	(12,668,256	)
	Net Change in Unrealized Gain (Loss)		4,976,562			(2,812,750	)
Total		$	(9,349,968	)	$	(15,481,006	)

The brokerage agreement with the Commodity Broker provides for the net settlement of all financial instruments covered by the agreement in the event of default or termination of any one contract. The Managing Owner will utilize the cash held at the Commodity Broker to offset any realized losses incurred in the commodity futures contracts, if available. To the extent that cash held at the Commodity Broker is not adequate to cover any realized losses, a portion of the United States Treasury Obligations will be sold to make additional cash available. The table below summarizes the average monthly notional value of commodity futures contracts outstanding during the period:

	Commodity Futures Contracts
	Three Months Ended
	March 31, 2015		March 31, 2014
Average Notional Value	$	197,433,170	$	285,743,069

The Fund utilizes derivative instruments to achieve its investment objective. For financial reporting purposes, the Fund offsets financial assets and financial liabilities that are subject to netting arrangements. In order for an arrangement to be eligible for netting, the Fund must have a basis to conclude that such netting arrangements are legally enforceable. The following table presents derivative instruments that are either subject to an enforceable netting agreement or offset by collateral arrangements as of March 31, 2015, net by contract:

										Gross Amounts Not Offset in the Statement of Financial Condition
	Gross Amounts Recognized(a)			Gross Amounts Offset in the Statement of Financial Condition			Net Amounts Presented in the Statement of Financial Condition			Financial Instruments(b)		Cash Collateral Pledged(b)		Net Amount
Assets
Commodity Futures Contracts	$	2,463,668		$	(2,463,668	)	$	—		$	—	$	—	$	—
Liabilities
Commodity Futures Contracts	$	(10,961,281	)	$	2,463,668		$	(8,497,613	)	$	8,497,613	$	—	$	—

The following table presents derivative instruments that are either subject to an enforceable netting agreement or offset by collateral arrangements as of December 31, 2014 net by contract:

									Gross Amounts Not Offset in the Statement of Financial Condition
	Gross Amounts Recognized(a)			Gross Amounts Offset in the Statement of Financial Condition		Net Amounts Presented in the Statement of Financial Condition			Financial Instruments(b)		Cash Collateral Pledged(b)		Net Amount
Liabilities
Commodity Futures Contracts	$	(13,474,175	)	$	—	$	(13,474,175	)	$	—	$	13,474,175	$	—

(a) Includes cumulative appreciation (depreciation) of futures contracts.

(b) As of March 31, 2015 and December 31, 2014, a portion of the Fund’s cash and US Treasury Obligations were required to be deposited as margin in support of the Fund’s futures positions as described in Note 3.

Brokerage Commissions and Fees

(l) Brokerage Commissions and Fees

The Fund incurs all brokerage commissions, including applicable exchange fees, National Futures Association (“NFA”) fees, give-up fees, pit brokerage fees and other transaction related fees and expenses charged in connection with trading activities by the Commodity Broker. These costs are recorded as brokerage commissions and fees in the statement of income and expenses as incurred. The Commodity Broker’s brokerage commissions and trading fees are determined on a contract-by-contract basis. On average, total charges paid to the Commodity Broker and the Predecessor Commodity Broker, as applicable, were less than $19.00 and $10.00 per round-turn trade for the Three Months Ended March 31, 2015 and 2014, respectively.

Routine Operational, Administrative and Other Ordinary Expenses

(m) Routine Operational, Administrative and Other Ordinary Expenses

The Managing Owner assumes all routine operational, administrative and other ordinary expenses of the Fund, including, but not limited to, computer services, the fees and expenses of the Trustee, legal and accounting fees and expenses, tax preparation expenses, filing fees and printing, mailing and duplication costs. Prior to the Closing Date, the Predecessor Managing Owner assumed all routine operational, administrative and other ordinary expenses of the Fund. Accordingly, all such expenses are not reflected in the statement of income and expenses of the Fund.

Organizational and Offering Costs

(n) Organizational and Offering Costs

Prior to the Closing Date, all organizational and offering expenses (including continuous offering expenses for the offering of the Shares) incurred by the Fund were assumed by either the Predecessor Managing Owner or the Managing Owner. The Fund is not responsible to either the Predecessor Managing Owner or the Managing Owner for the reimbursement of organizational and offering costs (including continuous offering expenses for the offering of the Shares).

Non-Recurring Fees and Expenses

(o) Non-Recurring Fees and Expenses

The Fund pays all non-recurring and unusual fees and expenses (referred to as extraordinary fees and expenses in the Trust Declaration), if any, of itself, as determined by the Managing Owner. Non-recurring and unusual fees and expenses are fees and expenses which are non-recurring and unusual in nature, such as legal claims and liabilities, litigation costs or indemnification or other unanticipated expenses. Such non-recurring and unusual fees and expenses, by their nature, are unpredictable in terms of timing and amount. For the Three Months Ended March 31, 2015 and 2014, the Fund did not incur such expenses.

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Commitments and Contingencies - Additional Information (Detail) (Indemnification Agreement [Member])	3 Months Ended	12 Months Ended
	Mar. 31, 2015 LegalMatter	Dec. 31, 2014 LegalMatter
Indemnification Agreement [Member]
Loss Contingencies [Line Items]
Claims received by fund	0	0

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Net Asset Value and Financial Highlights (Tables)

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Summary of Net Asset Value Per Share

Net asset value per Share is the net asset value of the Fund divided by the number of outstanding Shares at the date of each respective period presented.

	Three Months Ended
	March 31, 2015			March 31, 2014
Net Asset Value
Net asset value per Share, beginning of period	$	15.99		$	16.78
Net realized and change in unrealized gain (loss) on United States Treasury Obligations and Commodity Futures Contracts		(0.76	)		(0.90	)
Net investment income (loss)		(0.03	)		(0.03	)
Net income (loss)		(0.79	)		(0.93	)
Net asset value per Share, end of period	$	15.20		$	15.85
Market value per Share, beginning of period	$	15.91		$	16.84
Market value per Share, end of period	$	15.17		$	15.86
Ratio to average Net Assets*
Net investment income (loss)		(0.80	)%		(0.73	)%
Total expenses		0.82	%		0.77	%
Total Return, at net asset value **		(4.94	)%		(5.54	)%
Total Return, at market value **		(4.65	)%		(5.82	)%

* Percentages are annualized.

** Percentages are not annualized.

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Schedule of Investments (Unaudited) - Future Contracts (Parenthetical)	12 Months Ended	3 Months Ended
	Dec. 31, 2014 Contract	Mar. 31, 2015 Contract
LME Aluminum (1,605 contracts, settlement date October 19, 2015) [Member]
Schedule of Investments [Line Items]
Open option contracts written, number of contracts	1,605
Forward contract indexed to issuer's equity, settlement date or dates	Oct. 19, 2015
LME Copper (494 contracts, settlement date February 16, 2015) [Member]
Schedule of Investments [Line Items]
Open option contracts written, number of contracts	494
Forward contract indexed to issuer's equity, settlement date or dates	Feb. 16, 2015
LME Zinc (1,467 contracts, settlement date February 16, 2015 [Member]
Schedule of Investments [Line Items]
Open option contracts written, number of contracts	1,467
Forward contract indexed to issuer's equity, settlement date or dates	Feb. 16, 2015
LME Aluminum (1,464 contracts, settlement date October 19, 2015) [Member]
Schedule of Investments [Line Items]
Open option contracts written, number of contracts		1,464
Forward contract indexed to issuer's equity, settlement date or dates		Oct. 19, 2015
LME Copper (454 contracts, settlement date June 15, 2015) [Member]
Schedule of Investments [Line Items]
Open option contracts written, number of contracts		454
Forward contract indexed to issuer's equity, settlement date or dates		Jun. 15, 2015
LME Zinc (1,310 contracts, settlement date February 15, 2016) [Member]
Schedule of Investments [Line Items]
Open option contracts written, number of contracts		1,310
Forward contract indexed to issuer's equity, settlement date or dates		Feb. 15, 2016

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Statements of Financial Condition (Unaudited) (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Restricted investments	$ 43,497,187	$ 18,366,219
Total United States Treasury Obligations [Member]
United States Treasury Obligations, cost	$ 230,991,966	$ 236,993,093

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Share Purchases and Redemptions

3 Months Ended

Mar. 31, 2015

Text Block [Abstract]

Share Purchases and Redemptions

(7) Share Purchases and Redemptions

(a) Purchases

On any business day, an Authorized Participant may place an order with the Administrator who serves as the Fund’s transfer agent (“Transfer Agent”) to create one or more Baskets. For purposes of processing both creation and redemption orders, a “business day” means any day other than a day when banks in New York City are required or permitted to be closed. Creation orders must be placed by 10:00 a.m., Eastern Time. The day on which the Transfer Agent receives a valid creation order is the creation order date. The day on which a creation order is settled is the creation order settlement date. As provided below, the creation order settlement date may occur up to 3 business days after the creation order date. By placing a creation order, and prior to delivery of such Baskets, an Authorized Participant’s DTC account is charged the non refundable transaction fee due for the creation order.

Unless otherwise agreed to by the Managing Owner and the Authorized Participant as provided in the next sentence, Baskets are issued on the creation order settlement date as of 2:45 p.m., Eastern Time, on the business day immediately following the creation order date at the applicable net asset value per Share as of the closing time of the NYSE Arca or the last to close of the exchanges on which its commodity futures contracts are traded, whichever is later, on the creation order date, but only if the required payment has been timely received. Upon submission of a creation order, the Authorized Participant may request the Managing Owner to agree to a creation order settlement date up to 3 business days after the creation order date. By placing a creation order, and prior to receipt of the Baskets, an Authorized Participant’s DTC account is charged the non-refundable transaction fee due for the creation order.

Creation orders may be placed either (i) through the Continuous Net Settlement (“CNS”) clearing processes of the National Securities Clearing Corporation (the “NSCC”) or (ii) if outside the CNS Clearing Process, only through the facilities of The Depository Trust Company (“DTC” or the “Depository”) (the “DTC Process”), or a successor depository.

(b) Redemptions

On any business day, an Authorized Participant may place an order with the Transfer Agent to redeem one or more Baskets. Redemption orders must be placed by 10:00 a.m., Eastern Time. The day on which the Managing Owner receives a valid redemption order is the redemption order date. The day on which a redemption order is settled is the redemption order settlement date. As provided below, the redemption order settlement date may occur up to 3 business days after the redemption order date. The redemption procedures allow Authorized Participants to redeem Baskets. Individual Shareholders may not redeem directly from the Fund. Instead, individual Shareholders may only redeem Shares in integral multiples of 200,000 and only through an Authorized Participant.

Unless otherwise agreed to by the Managing Owner and the Authorized Participant as provided in the next sentence, by placing a redemption order, an Authorized Participant agrees to deliver the Baskets to be redeemed through DTC’s book-entry system to the Fund not later than the redemption order settlement date as of 2:45 p.m., Eastern Time, on the business day immediately following the redemption order date. Upon submission of a redemption order, the Authorized Participant may request the Managing Owner to agree to a redemption order settlement date up to 3 business days after the redemption order date. By placing a redemption order, and prior to receipt of the redemption proceeds, an Authorized Participant’s DTC account is charged the non-refundable transaction fee due for the redemption order.

Redemption orders may be placed either (i) through the CNS clearing processes of the NSCC or (ii) if outside the CNS Clearing Process, only through the DTC Process, or a successor depository, and only in exchange for cash. By placing a redemption order, and prior to receipt of the redemption proceeds, an Authorized Participant’s DTC account is charged the non-refundable transaction fee due for the redemption order.

The redemption proceeds from the Fund consist of the cash redemption amount. The cash redemption amount is equal to the net asset value of the number of Basket(s) of the Fund requested in the Authorized Participant’s redemption order as of the closing time of the NYSE Arca or the last to close of the exchanges on which the Fund’s commodity futures contracts are traded, whichever is later, on the redemption order date. The Managing Owner will distribute the cash redemption amount at the redemption order settlement date as of 2:45 p.m., Eastern Time, on the redemption order settlement date through DTC to the account of the Authorized Participant as recorded on DTC’s book-entry system.

The redemption proceeds due from the Fund are delivered to the Authorized Participant at 2:45 p.m., Eastern Time, on the redemption order settlement date if, by such time, the Fund’s DTC account has been credited with the Baskets to be redeemed. If the Fund’s DTC account has not been credited with all of the Baskets to be redeemed by such time, the redemption distribution is delivered to the extent of whole Baskets received. Any remainder of the redemption distribution is delivered on the next business day to the extent of remaining whole Baskets received if the Transfer Agent receives the fee applicable to the extension of the redemption distribution date which the Managing Owner may, from time-to-time, determine and the remaining Baskets to be redeemed are credited to the Fund’s DTC account by 2:45 p.m., Eastern Time, on such next business day. Any further outstanding amount of the redemption order will be cancelled. The Managing Owner is also authorized to deliver the redemption distribution notwithstanding that the Baskets to be redeemed are not credited to the Fund’s DTC account by 2:45 p.m., Eastern Time, on the redemption order settlement date if the Authorized Participant has collateralized its obligation to deliver the Baskets through DTC’s book-entry system on such terms as the Managing Owner may determine from time-to-time.

XML

Document and Entity Information	3 Months Ended
	Mar. 31, 2015
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2015
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Trading Symbol	DBB
Entity Registrant Name	POWERSHARES DB BASE METALS FUND
Entity Central Index Key	0001383084
Current Fiscal Year End Date	--12-31
Entity Filer Category	Accelerated Filer
Entity Common Stock, Shares Outstanding	13,400,000

XML

Profit and Loss Allocations and Distributions

3 Months Ended

Mar. 31, 2015

Equity [Abstract]

Profit and Loss Allocations and Distributions

(8) Profit and Loss Allocations and Distributions

Pursuant to the Trust Agreement, income and expenses are allocated pro rata to the Managing Owner as holder of the General Shares and to the Shareholders monthly based on their respective percentage interests as of the close of the last trading day of the preceding month. Distributions (other than redemption of units) may be made at the sole discretion of the Managing Owner on a pro rata basis in accordance with the respective capital balances of the shareholders.

No distributions were paid for the Three Months Ended March 31, 2015 or 2014.

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Schedule of Investments (Unaudited) - Treasury Bills (USD $)	Mar. 31, 2015		Dec. 31, 2014
Schedule of Investments [Line Items]
Fair Value	$ 230,992,371		$ 236,994,724
U.S. Treasury Bills, 0.005% due April 2, 2015 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	11.29%	[1],[2]
Fair Value	23,000,000	[1],[2]
Face Value	23,000,000	[1],[2]
U.S. Treasury Bills, 0.050% due April 16, 2015 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	3.93%	[1],[2]
Fair Value	8,000,000	[1],[2]
Face Value	8,000,000	[1],[2]
U.S. Treasury Bills, 0.020% due April 23, 2015 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	4.42%	[1],[2]
Fair Value	8,999,946	[1],[2]
Face Value	9,000,000	[1],[2]
U.S. Treasury Bills, 0.050% due April 30, 2015 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	14.23%	[1],[2]
Fair Value	28,999,246	[1],[2]
Face Value	29,000,000	[1],[2]
U.S. Treasury Bills, 0.015% due May 7, 2015 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	25.53%	[1],[2]
Fair Value	51,999,064	[1],[2]
Face Value	52,000,000	[1],[2]
U.S. Treasury Bills, 0.020% due May 14, 2015 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	7.36%	[1],[2]
Fair Value	14,999,640	[1],[2]
Face Value	15,000,000	[1],[2]
U.S. Treasury Bills, 0.015% due June 11, 2015 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	12.27%	[1],[2]
Fair Value	24,999,375	[1],[2]
Face Value	25,000,000	[1],[2]
U.S. Treasury Bills, 0.035% due July 2, 2015 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	34.36%	[1],[2]
Fair Value	69,995,100	[1],[2]
Face Value	70,000,000	[1],[2]
Total United States Treasury Obligations [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity	113.39%	[1],[2]	107.41%	[1],[2]
Fair Value	230,992,371	[1],[2]	236,994,724	[1],[2]
Face Value		[1],[2]		[1],[2]
U.S. Treasury Bills, 0.030% due January 2, 2015 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity			10.42%	[1],[2]
Fair Value			23,000,000	[1],[2]
Face Value			23,000,000	[1],[2]
U.S. Treasury Bills, 0.020% due January 15, 2015 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity			3.63%	[1],[2]
Fair Value			7,999,944	[1],[2]
Face Value			8,000,000	[1],[2]
U.S. Treasury Bills, 0.010% due January 22, 2015 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity			18.13%	[1],[2]
Fair Value			39,999,440	[1],[2]
Face Value			40,000,000	[1],[2]
U.S. Treasury Bills, 0.015% due January 29, 2015 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity			21.30%	[1],[2]
Fair Value			46,999,295	[1],[2]
Face Value			47,000,000	[1],[2]
U.S. Treasury Bills, 0.010% due February 5, 2015 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity			23.57%	[1],[2]
Fair Value			51,999,012	[1],[2]
Face Value			52,000,000	[1],[2]
U.S. Treasury Bills, 0.025% due February 12, 2015 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity			10.88%	[1],[2]
Fair Value			23,999,664	[1],[2]
Face Value			24,000,000	[1],[2]
U.S. Treasury Bills, 0.025% due March 12, 2015 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity			1.36%	[1],[2]
Fair Value			2,999,886	[1],[2]
Face Value			3,000,000	[1],[2]
U.S. Treasury Bills, 0.055% due March 26, 2015 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity			7.70%	[1],[2]
Fair Value			16,999,507	[1],[2]
Face Value			17,000,000	[1],[2]
U.S. Treasury Bills, 0.040% due April 2, 2015 [Member]
Schedule of Investments [Line Items]
Percentage of Shareholders' Equity			10.42%	[1],[2]
Fair Value			22,997,976	[1],[2]
Face Value			$ 23,000,000	[1],[2]

[1] Security traded on a discount basis. The interest rate shown represents the discount rate at the time of issuance of the security.

[2] A portion of United States treasury obligation on deposit with the commodity broker are held as margin for open future contracts. See Note 3 for additional information.

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Organization

3 Months Ended

Mar. 31, 2015

Accounting Policies [Abstract]

Organization

(2) Organization

The Fund is a separate series of the Trust. The Trust is a Delaware statutory trust organized in seven separate series and was formed on August 3, 2006. The Predecessor Managing Owner seeded the Fund with a capital contribution of $1,000 in exchange for 40 General Shares of the Fund. The General Shares were sold to the Managing Owner by the Predecessor Managing Owner pursuant to the terms of the Agreement. The fiscal year end of the Fund is December 31st. The term of the Fund is perpetual (unless terminated earlier in certain circumstances) as provided for in the Fifth Amended and Restated Declaration of Trust and Trust Agreement of the Trust (the “Trust Agreement”). The Fourth Amended and Restated Declaration of Trust and Trust Agreement of the Trust dated November 12, 2012 was effective for purposes of the reporting period up to and excluding the Closing Date. The fund has an unlimited number of shares authorized for issuance.

The Fund offers common units of beneficial interest (the “Shares”) only to certain eligible financial institutions (the “Authorized Participants”) in one or more blocks of 200,000 Shares, called a Basket. The proceeds from the offering of Shares are invested in the Fund. The Fund commenced investment operations on January 3, 2007. The Fund commenced trading on the American Stock Exchange (which became the NYSE Alternext US LLC (the “NYSE Alternext”)) on January 5, 2007 and, as of November 25, 2008, is listed on the NYSE Arca, Inc. (the “NYSE Arca”).

This Report covers the three months ended March 31, 2015 and 2014 (hereinafter referred to as the “Three Months Ended March 31, 2015” and the “Three Months Ended March 31, 2014”, respectively). The Fund’s performance information from inception up to and excluding the Closing Date is a reflection of the performance associated with the Predecessor Managing Owner. The Managing Owner has served as managing owner of the Fund since the Closing Date, and the Fund’s performance information since the Closing Date is a reflection of the performance associated with the Managing Owner. Past performance of the Fund is not necessarily indicative of future performance.

The accompanying unaudited financial statements were prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions for Form 10-Q and the rules and regulations of the U.S. Securities and Exchange Commission (the “SEC”). In the opinion of management, all material adjustments, consisting only of normal recurring adjustments, considered necessary for a fair statement of the interim period financial statements have been made. Interim period results are not necessarily indicative of results for a full-year period. These financial statements and the notes thereto should be read in conjunction with the Fund’s financial statements included in its Annual Report on Form 10-K for the year ended December 31, 2014 as filed with the SEC on March 9, 2015.

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Background

3 Months Ended

Mar. 31, 2015

Accounting Policies [Abstract]

Background

(1) Background

On October 24, 2014, DB Commodity Services LLC, a Delaware limited liability company (“DBCS”), DB U.S. Financial Markets Holding Corporation (“DBUSH”) and Invesco PowerShares Capital Management LLC (“Invesco”) entered into an Asset Purchase Agreement (the “Agreement”). DBCS is a wholly-owned subsidiary of DBUSH. DBCS agreed to transfer and sell to Invesco all of DBCS’ interest in PowerShares DB Base Metals Fund (the “Fund”), a separate series of PowerShares DB Multi-Sector Commodity Trust (the “Trust”), a Delaware statutory trust organized in seven separate series, including the sole and exclusive power to direct the business and affairs of the Trust and the Fund, as well as certain other assets pertaining to the management of the Trust and the Fund, pursuant to the terms and conditions of the Agreement (the “Transaction”).

The Transaction was consummated on February 23, 2015 (the “Closing Date”). Invesco now serves as the managing owner (the “Managing Owner”), commodity pool operator and commodity trading advisor of the Trust and the Fund, in replacement of DBCS (the “Predecessor Managing Owner”).

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Summary of Significant Accounting Policies (Tables)

3 Months Ended

Mar. 31, 2015

Accounting Policies [Abstract]

Summary of the Tiered Valuation Input Levels

The following is a summary of the tiered valuation input levels as of March 31, 2015:

	Level 1			Level 2		Level 3		Total
United States Treasury Obligations	$	—		$	230,992,371	$	—	$	230,992,371
Commodity Futures Contracts(a)	$	(8,497,613	)	$	—	$	—	$	(8,497,613	)

(a) Unrealized appreciation (depreciation).

The following is a summary of the tiered valuation input levels as of December 31, 2014:

	Level 1		Level 2			Level 3		Total
United States Treasury Obligations	$	236,994,724	$	—		$	—	$	236,994,724
Commodity Futures Contracts(a)	$	—	$	(13,474,175	)	$	—	$	(13,474,175	)

(a) Unrealized appreciation (depreciation).

Fair Value of Derivative Instruments and Effect of Derivative Instruments on Statements of Income and Expenses

The Value of Derivative Instruments is as follows:

	March 31, 2015						December 31, 2014
Risk Exposure/Derivative Type	Assets			Liabilities			Assets		Liabilities
Commodity risk
Commodity Futures Contracts	$	2,463,668	(a)	$	(10,961,281	)(a)	$	—	$	(13,474,175	)(b)

(a) Includes cumulative appreciation (depreciation) of commodity futures contracts. Only current day’s variation margin receivable (payable) is reported in the March 31, 2015 Statement of Financial Condition.

(b) Values are disclosed on the December 31, 2014 Statement of Financial Condition under Net Unrealized appreciation (depreciation) on commodity futures contracts.

The Effect of Derivative Instruments on the Statements of Income and Expenses is as follows:

Risk Exposure/Derivative Type	Location of Gain or (Loss) on Derivatives Recognized in Income	For the Three Months Ended March 31, 2015			For the Three Months Ended March 31, 2014
Commodity risk
Commodity Futures Contracts	Net Realized Gain (Loss)	$	(14,326,530	)	$	(12,668,256	)
	Net Change in Unrealized Gain (Loss)		4,976,562			(2,812,750	)
Total		$	(9,349,968	)	$	(15,481,006	)

Summary of Average Monthly Notional Value of Future Contracts Outstanding

The table below summarizes the average monthly notional value of commodity futures contracts outstanding during the period:

	Commodity Futures Contracts
	Three Months Ended
	March 31, 2015		March 31, 2014
Average Notional Value	$	197,433,170	$	285,743,069

Summary of Gross and Net Amounts of Offsetting Assets and Liabilities

The following table presents derivative instruments that are either subject to an enforceable netting agreement or offset by collateral arrangements as of March 31, 2015, net by contract:

										Gross Amounts Not Offset in the Statement of Financial Condition
	Gross Amounts Recognized(a)			Gross Amounts Offset in the Statement of Financial Condition			Net Amounts Presented in the Statement of Financial Condition			Financial Instruments(b)		Cash Collateral Pledged(b)		Net Amount
Assets
Commodity Futures Contracts	$	2,463,668		$	(2,463,668	)	$	—		$	—	$	—	$	—
Liabilities
Commodity Futures Contracts	$	(10,961,281	)	$	2,463,668		$	(8,497,613	)	$	8,497,613	$	—	$	—

The following table presents derivative instruments that are either subject to an enforceable netting agreement or offset by collateral arrangements as of December 31, 2014 net by contract:

									Gross Amounts Not Offset in the Statement of Financial Condition
	Gross Amounts Recognized(a)			Gross Amounts Offset in the Statement of Financial Condition		Net Amounts Presented in the Statement of Financial Condition			Financial Instruments(b)		Cash Collateral Pledged(b)		Net Amount
Liabilities
Commodity Futures Contracts	$	(13,474,175	)	$	—	$	(13,474,175	)	$	—	$	13,474,175	$	—

(a) Includes cumulative appreciation (depreciation) of futures contracts.

(b) As of March 31, 2015 and December 31, 2014, a portion of the Fund’s cash and US Treasury Obligations were required to be deposited as margin in support of the Fund’s futures positions as described in Note 3.

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Commitments and Contingencies

3 Months Ended

Mar. 31, 2015

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

(9) Commitments and Contingencies

The Managing Owner, either in its own capacity or in its capacity as the Managing Owner and on behalf of the Fund, has entered into various service agreements that contain a variety of representations, or provide indemnification provisions related to certain risks service providers undertake in performing services which are in the best interests of the Fund. As of March 31, 2015 and December 31, 2014, no claims had been received by the Fund. Further, the Fund has not had prior claims or losses pursuant to these contracts. Accordingly, the Managing Owner expects the risk of loss to be remote.

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Summary of Significant Accounting Policies

3 Months Ended

Mar. 31, 2015

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

(5) Summary of Significant Accounting Policies

(a) Basis of Presentation

The Fund has determined that it meets the definition of an investment company and has prepared the unaudited financial statements in conformity with U.S. GAAP for investment companies in conformity with accounting and reporting guidance of the Financial Accounting Standards Board (“FASB”) Accounting Standards Codification Topic 946—Investment Companies.

In August 2014, the FASB issued a new standard, Accounting Standards Update No. 2014-15 Disclosure of Uncertainties about an Entity’s Ability to Continue as a Going Concern, which will explicitly require management to assess an entity’s ability to continue as a going concern and to provide related footnote disclosure in certain circumstances. This new guidance is effective for all entities in the first annual reporting period ending after December 15, 2016. The Fund is currently evaluating this guidance and its impact on the Fund’s financial statement disclosures.

(b) Use of Estimates

The preparation of the financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, revenues and expenses and related disclosure of contingent assets and liabilities during the reporting period of the financial statements and accompanying notes. Actual results could differ from those estimates. There were no significant estimates used in the preparation of these financial statements.

(c) Financial Instruments and Fair Value

United States Treasury Obligations and commodity futures contracts are recorded in the statements of financial condition on a trade date basis at fair value with changes in fair value recognized in earnings in each period. U.S. GAAP defines fair value as the price that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date, under current market conditions.

U.S. GAAP establishes a hierarchy that prioritizes the inputs to valuation methods, giving the highest priority to readily available unadjusted quoted prices in an active market for identical assets (Level 1) and the lowest priority to significant unobservable inputs (Level 3), generally when market prices are not readily available or are unreliable. Based on the valuation inputs, the securities or other investments are tiered into one of three levels. Changes in valuation methods or market conditions may result in transfers in or out of an investment’s assigned level:

Level 1—Prices are determined using quoted prices in an active market for identical assets.

Level 2—Prices are determined using other significant observable inputs. Observable inputs are inputs that other market participants may use in pricing a security. These may include quoted prices for similar securities, interest rates, prepayment speeds, credit risk, yield curves, loss severities, default rates, discount rates, volatilities and others.

Level 3—Prices are determined using significant unobservable inputs. In situations where quoted prices or observable inputs are unavailable (for example, when there is little or no market activity for an investment at the end of the period), unobservable inputs may be used. Unobservable inputs reflect the Fund’s own assumptions about the factors market participants would use in determining fair value of the securities or instruments and would be based on the best available information.

The levels assigned to the securities valuations may not be an indication of the risk or liquidity associated with investing in those securities. Because of the inherent uncertainties of valuation, the values reflected in the financial statements may materially differ from the value received upon actual sale of those investments.

The following is a summary of the tiered valuation input levels as of March 31, 2015:

	Level 1			Level 2		Level 3		Total
United States Treasury Obligations	$	—		$	230,992,371	$	—	$	230,992,371
Commodity Futures Contracts(a)	$	(8,497,613	)	$	—	$	—	$	(8,497,613	)

(a) Unrealized appreciation (depreciation).

The Fund’s policy is to recognize transfers in and out of the valuation levels as of the end of the reporting period. Effective on the Closing Date, the Fund revised certain policies with respect to level classification. As a result, United States Treasury Obligations were transferred from Level 1 to Level 2 and LME commodity futures contracts were transferred from Level 2 to Level 1. Treasury Obligations of $23,000,000 were transferred from Level 1 to Level 2 during the period. LME commodity futures contracts of $(8,966,300) were transferred from Level 2 to Level 1 during the period.

The following is a summary of the tiered valuation input levels as of December 31, 2014:

	Level 1		Level 2			Level 3		Total
United States Treasury Obligations	$	236,994,724	$	—		$	—	$	236,994,724
Commodity Futures Contracts(a)	$	—	$	(13,474,175	)	$	—	$	(13,474,175	)

(a) Unrealized appreciation (depreciation).

(d) Deposits with Commodity Broker

The Fund deposits cash and United States Treasury Obligations with its Commodity Broker subject to CFTC regulations and various exchange and broker requirements. The combination of the Fund’s deposits with its Commodity Broker of cash and United States Treasury Obligations and the unrealized profit or loss on open commodity futures contracts (variation margin) represents the Fund’s overall equity in its broker trading account. To meet the Fund’s initial margin requirements, the Fund holds United States Treasury Obligations. The Fund uses its cash held by the Commodity Broker to satisfy variation margin requirements. The Fund earns interest on its cash deposited with the Commodity Broker.

(e) Deposits with Custodian

The combination of the Fund’s deposits with its Custodian of cash and United States Treasury Obligations represents the Fund’s overall assets held with its Custodian.

(f) United States Treasury Obligations

The Fund records purchases and sales of United States Treasury Obligations on a trade date basis. These holdings are marked to market based on quoted market closing prices. The Fund holds United States Treasury Obligations for deposit with the Fund’s Commodity Broker to meet margin requirements and for trading purposes. Interest income is recognized on an accrual basis when earned. Premiums and discounts are amortized or accreted in interest income over the life of the United States Treasury Obligations. The Fund purchased $70,000,000 face amount of United States Treasury Obligations valued at $69,995,134 which was recorded as a payable for securities purchased as of March 31, 2015. The Fund purchased $23,000,000 face amount of United States Treasury Obligations valued at $22,997,987 which was recorded as a payable for securities purchased as of December 31, 2014.

(g) Cash Held by Commodity Broker

The Fund’s arrangement with the Commodity Broker requires the Fund to meet its variation margin requirement related to the price movements, both positive and negative, on commodity futures contracts held by the Fund by keeping cash on deposit with the Commodity Broker. The Fund assesses its variation margin on a daily basis and additional cash required to satisfy the variation margin requirement is transferred from the Custodian to the Commodity Broker at the close of business each day. Effective February 24, 2015, only the current day’s variation margin receivable or payable is disclosed as an asset or liability on the Statement of Financial Condition. The Fund defines cash and cash equivalents to be highly liquid investments, with original maturities of three months or less when purchased. As of December 31, 2014, the Fund had cash held with the Predecessor Commodity Broker of $27,364,752, which was on deposit to satisfy the Fund’s variation margin requirement on open commodity futures contracts. There was no cash held with the Commodity Broker at March 31, 2015. There were no cash equivalents held by the Fund as of March 31, 2015 and December 31, 2014.

(h) Receivable/(Payable) for LME Contracts

The Fund trades aluminum, copper and zinc commodity future contracts on the London Metals Exchange (“LME”). For settlement of commodity futures contracts traded on the LME, cash is not transferred until the settled commodity futures contracts expire. As of March 31, 2015, the Fund had a payable to the Commodity Broker of $6,386,880 related to net realized losses on LME contracts, which have been closed out but the contract is not yet expired. As of December 31, 2014, the Fund had a payable to the Predecessor Commodity Broker for contracts on the LME of $7,104,250 related to net realized losses on LME contracts.

(i) Receivable/(Payable) for Shares Issued and Redeemed

On any business day, an Authorized Participant may place an order to create or redeem Shares of the Fund. Cash settlement occurs at the creation order settlement date or the redemption order settlement date as discussed in Note 7.

(j) Income Taxes

The Fund is classified as a partnership for U.S. federal income tax purposes. Accordingly, the Fund will not incur U.S. federal income taxes. No provision for federal, state, and local income taxes has been made in the accompanying financial statements, as investors are individually liable for income taxes, if any, on their allocable share of the Fund’s income, gain, loss, deductions and other items.

The Managing Owner has reviewed all of the Fund’s open tax years and major jurisdictions and concluded that there is no tax liability resulting from unrecognized tax benefits relating to uncertain income tax positions taken or expected to be taken in future tax returns. The Fund is also not aware of any tax positions for which it is reasonably possible that the total amounts of unrecognized tax benefits will significantly change in the next twelve months. On an ongoing basis, management will monitor its tax positions taken under the interpretation (and consult with its tax counsel from time to time when appropriate) to determine if adjustments to conclusions are necessary based on factoring including, but not limited to, on-going analysis of tax law, regulation, and interpretations thereof. The major tax jurisdiction for the Fund and the earliest tax year subject to examination: United States, 2011.

(k) Commodity Futures Contracts

All commodity futures contracts are held and used for trading purposes. Commodity futures contracts are recorded on trade date basis and open contracts are recorded in the statement of financial condition at fair value on the last business day of the period, which represents market value for those commodity futures contracts for which market quotes are readily available. However, when market closing prices are not available, the Managing Owner may value an asset of the Fund pursuant to policies the Managing Owner has adopted, which are consistent with normal industry standards. Realized gains (losses) and changes in unrealized appreciation (depreciation) on open positions are determined on a specific identification basis and recognized in the statement of income and expenses in the period in which the contract is closed or the changes occur, respectively.

The Value of Derivative Instruments is as follows:

	March 31, 2015						December 31, 2014
Risk Exposure/Derivative Type	Assets			Liabilities			Assets		Liabilities
Commodity risk
Commodity Futures Contracts	$	2,463,668	(a)	$	(10,961,281	)(a)	$	—	$	(13,474,175	)(b)

(a) Includes cumulative appreciation (depreciation) of commodity futures contracts. Only current day’s variation margin receivable (payable) is reported in the March 31, 2015 Statement of Financial Condition.

(b) Values are disclosed on the December 31, 2014 Statement of Financial Condition under Net Unrealized appreciation (depreciation) on commodity futures contracts.

The Effect of Derivative Instruments on the Statements of Income and Expenses is as follows:

Risk Exposure/Derivative Type	Location of Gain or (Loss) on Derivatives Recognized in Income	For the Three Months Ended March 31, 2015			For the Three Months Ended March 31, 2014
Commodity risk
Commodity Futures Contracts	Net Realized Gain (Loss)	$	(14,326,530	)	$	(12,668,256	)
	Net Change in Unrealized Gain (Loss)		4,976,562			(2,812,750	)
Total		$	(9,349,968	)	$	(15,481,006	)

The brokerage agreement with the Commodity Broker provides for the net settlement of all financial instruments covered by the agreement in the event of default or termination of any one contract. The Managing Owner will utilize the cash held at the Commodity Broker to offset any realized losses incurred in the commodity futures contracts, if available. To the extent that cash held at the Commodity Broker is not adequate to cover any realized losses, a portion of the United States Treasury Obligations will be sold to make additional cash available. The table below summarizes the average monthly notional value of commodity futures contracts outstanding during the period:

	Commodity Futures Contracts
	Three Months Ended
	March 31, 2015		March 31, 2014
Average Notional Value	$	197,433,170	$	285,743,069

The Fund utilizes derivative instruments to achieve its investment objective. For financial reporting purposes, the Fund offsets financial assets and financial liabilities that are subject to netting arrangements. In order for an arrangement to be eligible for netting, the Fund must have a basis to conclude that such netting arrangements are legally enforceable. The following table presents derivative instruments that are either subject to an enforceable netting agreement or offset by collateral arrangements as of March 31, 2015, net by contract:

										Gross Amounts Not Offset in the Statement of Financial Condition
	Gross Amounts Recognized(a)			Gross Amounts Offset in the Statement of Financial Condition			Net Amounts Presented in the Statement of Financial Condition			Financial Instruments(b)		Cash Collateral Pledged(b)		Net Amount
Assets
Commodity Futures Contracts	$	2,463,668		$	(2,463,668	)	$	—		$	—	$	—	$	—
Liabilities
Commodity Futures Contracts	$	(10,961,281	)	$	2,463,668		$	(8,497,613	)	$	8,497,613	$	—	$	—

The following table presents derivative instruments that are either subject to an enforceable netting agreement or offset by collateral arrangements as of December 31, 2014 net by contract:

									Gross Amounts Not Offset in the Statement of Financial Condition
	Gross Amounts Recognized(a)			Gross Amounts Offset in the Statement of Financial Condition		Net Amounts Presented in the Statement of Financial Condition			Financial Instruments(b)		Cash Collateral Pledged(b)		Net Amount
Liabilities
Commodity Futures Contracts	$	(13,474,175	)	$	—	$	(13,474,175	)	$	—	$	13,474,175	$	—

(a) Includes cumulative appreciation (depreciation) of futures contracts.

(b) As of March 31, 2015 and December 31, 2014, a portion of the Fund’s cash and US Treasury Obligations were required to be deposited as margin in support of the Fund’s futures positions as described in Note 3.

(l) Brokerage Commissions and Fees

The Fund incurs all brokerage commissions, including applicable exchange fees, National Futures Association (“NFA”) fees, give-up fees, pit brokerage fees and other transaction related fees and expenses charged in connection with trading activities by the Commodity Broker. These costs are recorded as brokerage commissions and fees in the statement of income and expenses as incurred. The Commodity Broker’s brokerage commissions and trading fees are determined on a contract-by-contract basis. On average, total charges paid to the Commodity Broker and the Predecessor Commodity Broker, as applicable, were less than $19.00 and $10.00 per round-turn trade for the Three Months Ended March 31, 2015 and 2014, respectively.

(m) Routine Operational, Administrative and Other Ordinary Expenses

The Managing Owner assumes all routine operational, administrative and other ordinary expenses of the Fund, including, but not limited to, computer services, the fees and expenses of the Trustee, legal and accounting fees and expenses, tax preparation expenses, filing fees and printing, mailing and duplication costs. Prior to the Closing Date, the Predecessor Managing Owner assumed all routine operational, administrative and other ordinary expenses of the Fund. Accordingly, all such expenses are not reflected in the statement of income and expenses of the Fund.

(n) Organizational and Offering Costs

Prior to the Closing Date, all organizational and offering expenses (including continuous offering expenses for the offering of the Shares) incurred by the Fund were assumed by either the Predecessor Managing Owner or the Managing Owner. The Fund is not responsible to either the Predecessor Managing Owner or the Managing Owner for the reimbursement of organizational and offering costs (including continuous offering expenses for the offering of the Shares).

(o) Non-Recurring Fees and Expenses

The Fund pays all non-recurring and unusual fees and expenses (referred to as extraordinary fees and expenses in the Trust Declaration), if any, of itself, as determined by the Managing Owner. Non-recurring and unusual fees and expenses are fees and expenses which are non-recurring and unusual in nature, such as legal claims and liabilities, litigation costs or indemnification or other unanticipated expenses. Such non-recurring and unusual fees and expenses, by their nature, are unpredictable in terms of timing and amount. For the Three Months Ended March 31, 2015 and 2014, the Fund did not incur such expenses.

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Fund Investment Overview

3 Months Ended

Mar. 31, 2015

Accounting Policies [Abstract]

Fund Investment Overview

(3) Fund Investment Overview

The Fund invests with a view to tracking the changes, whether positive or negative, in the level of the DBIQ Optimum Yield Industrial Metals Index Excess Return™ (the “Index”) over time, plus the excess, if any, of the Fund’s interest income from its holdings of United States Treasury Obligations and other high credit quality short-term fixed income securities over the expenses of the Fund.

The Index is intended to reflect the change in market value of the base metals sector. The commodities comprising the Index are aluminum, zinc and copper—Grade A (each an “Index Commodity”, and collectively, the “Index Commodities”).

The Fund also holds United States Treasury Obligations and other high credit quality short-term fixed income securities for deposit with the Fund’s commodity broker as margin.

The Index Commodities are currently trading on the London Metals Exchange (the “LME”). Although the LME does not currently impose position limits on the Index Commodities, the LME may in the future impose position limits on market participants trading in certain commodities included in the Index. Further, in the event the Fund invests in alternative commodity futures contracts as described below, that trade on a U.S. exchange, the Commodity Futures Trading Commission (the “CFTC”) and commodity exchanges may impose position limits on market participants trading in the commodities futures contracts included in the Index. The Index is comprised of commodity futures contracts on the Index Commodities that expire in a specific month and trade on a specific exchange (the “Index Contracts”). As disclosed in the Prospectus, if the Managing Owner determines in its commercially reasonable judgment that it has become impracticable or inefficient for any reason for the Fund to gain full or partial exposure to any Index Commodity by investing in a specific Index Contract, the Fund may invest in a commodities futures contract referencing the particular Index Commodity other than the Index Contract or, in the alternative, invest in other commodities futures contracts not based on the particular Index Commodity if, in the commercially reasonable judgment of the Managing Owner, such commodities futures contracts tend to exhibit trading prices that correlate with such Index Commodity.

The Fund holds United States Treasury Obligations for deposit with the Fund’s Commodity Broker as margin. The Fund does not borrow money to increase leverage. As of March 31, 2015 and December 31, 2014, the Fund had $43,497,187 (or 15.52% of its total assets) and $250,885,301 (or 100% of its total assets), respectively, of its holdings of cash, United States Treasury Obligations and unrealized appreciation/depreciation on commodities futures contracts on deposit with its Commodity Broker (as defined below) or its Predecessor Commodity Broker (as defined below), as applicable. Of this, $43,497,187 (or 15.52%) and $18,366,219 (or 7.3%) are required to be deposited to satisfy maintenance margin required by the Commodity Broker for the Fund’s long futures positions as of March 31, 2015 and December 31, 2014, respectively. For additional information, please see the unaudited Schedule of Investments as of March 31, 2015 and December 31, 2014 for details of the Fund’s portfolio holdings.

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Service Providers and Related Party Agreements

3 Months Ended

Mar. 31, 2015

Related Party Transactions [Abstract]

Service Providers and Related Party Agreements

(4) Service Providers and Related Party Agreements

The Trustee

Under the Trust Agreement, Wilmington Trust Company, the trustee of the Fund (the “Trustee”), has delegated to the Managing Owner the exclusive management and control of all aspects of the business of the Trust and the Fund. The Trustee will have no duty or liability to supervise or monitor the performance of the Managing Owner, nor will the Trustee have any liability for the acts or omissions of the Managing Owner.

The Managing Owner

The Managing Owner serves as the Fund’s commodity pool operator, commodity trading advisor and managing owner. The Fund pays the Managing Owner a management fee, monthly in arrears, in an amount equal to 0.75% per annum of the daily net asset value of the Fund. For purposes of the reporting period up to and excluding the Closing Date, all Management Fees were payable to the Predecessor Managing Owner (the “Management Fee”). The Managing Owner has served as managing owner of the Fund since the Closing Date and all Management Fee accruals since the Closing Date have been paid to the Managing Owner.

During the Three Months Ended March 31, 2015 and 2014, the Fund incurred Management Fees of $332,543 and $500,509, respectively. As of March 31, 2015 and December 31, 2014, Management Fees payable were $112,104 and $130,925, respectively.

The Commodity Broker

Effective as of the Closing Date, Morgan Stanley & Co. LLC, a Delaware limited liability company, serves as the Fund’s futures clearing broker (the “Commodity Broker”). Deutsche Bank Securities Inc. (“DBSI”), a Delaware corporation, served as the Fund’s futures clearing broker up to and excluding the Closing Date (the “Predecessor Commodity Broker”). DBSI is also an indirect wholly-owned subsidiary of Deutsche Bank AG and is an affiliate of the Predecessor Managing Owner. A variety of executing brokers execute futures transactions on behalf of the Fund. Such executing brokers give-up all such transactions to the commodity broker. In its capacity as clearing broker, the Commodity Broker may execute or receive transactions executed by others and clears all of the Fund’s futures transactions and performs certain administrative and custodial services for the Fund. The Commodity Broker is responsible, among other things, for providing periodic accountings of all dealings and actions taken by the Trust on behalf of the Fund during the reporting period, together with an accounting of all securities, cash or other indebtedness or obligations held by it or its nominees for or on behalf of the Fund. During the Three Months Ended March 31, 2015 and 2014, the Fund incurred brokerage fees of $30,186 and $15,020, respectively. As of March 31, 2015 and December 31, 2014, brokerage fees payable were $878 and $4,635, respectively. For the avoidance of doubt, for purposes of the reporting period up to and excluding the Closing Date, commission payments were paid to the Predecessor Commodity Broker. The Commodity Broker has served as the Fund’s futures clearing broker since the Closing Date and all commission accruals since the Closing Date have been paid to the Commodity Broker.

The Administrator, Custodian and Transfer Agent

The Bank of New York Mellon (the “Administrator” and “Custodian”) is the administrator, custodian and transfer agent of the Fund, and has entered into separate administrative, custodian, transfer agency and service agreements (collectively referred to as the “Administration Agreement”).

Pursuant to the Administration Agreement, the Administrator performs or supervises the performance of services necessary for the operation and administration of the Fund (other than making investment decisions), including receiving and processing orders from Authorized Participants to create and redeem Baskets, net asset value calculations, accounting and other fund administrative services. The Administrator retains certain financial books and records, including: Basket creation and redemption books and records, fund accounting records, ledgers with respect to assets, liabilities, capital, income and expenses, the registrar, transfer journals and related details, and trading and related documents received from the Commodity Broker and other unaffiliated futures commission merchants.

As of December 31, 2014, the Fund held $27,364,752 of cash and $236,994,724 of United States Treasury Obligations at the Predecessor Commodity Broker. In conjunction with the Transaction, during the three-day period from February 24, 2015 to February 26, 2015, the Fund transferred $31,802,760 of cash and $155,996,427 of United States Treasury Obligations from the Predecessor Commodity Broker to the Custodian. Additionally, during that same three-day period, the Fund transferred all of its open positions of commodity futures contracts from the Predecessor Commodity Broker to the Commodity Broker and $51,994,800 of United States Treasury Obligations from the Custodian to the Commodity Broker to satisfy maintenance margin requirements.

As of March 31, 2015, the Fund had $236,713,560 (or 84.48% of total assets) of its holdings of cash and United States Treasury Obligations held with its Custodian. No assets were held at the Custodian on December 31, 2014.

The Managing Owner pays the Administrator administrative services fees out of the Management Fee.

The Distributor

ALPS Distributors, Inc. (the “Distributor”) provides certain distribution services to the Fund. Pursuant to the Distribution Services Agreement among the Managing Owner in its capacity as managing owner of the Fund and the Distributor, the Distributor assists the Managing Owner and the Administrator with certain functions and duties relating to distribution and marketing services to the Fund including reviewing and approving marketing materials.

The Managing Owner pays the Distributor a distribution fee out of the Management Fee.

Index Sponsor

Effective as of the Closing Date, the Managing Owner, on behalf of the Fund, has appointed Deutsche Bank Securities Inc. to serve as the index sponsor (the “Index Sponsor”). Prior to the Closing Date, the index sponsor was Deutsche Bank AG London. The Index Sponsor calculates and publishes the daily index levels and the indicative intraday index levels. Additionally, the Index Sponsor also calculates the indicative value per Share of the Fund throughout each Business Day.

The Managing Owner pays the Index Sponsor a licensing fee and an index services fee out of the Management Fee for performing its duties.

Marketing Agent

Effective as of the Closing Date, the Managing Owner, on behalf of the Fund, has appointed Deutsche Bank Securities Inc. as the marketing agent (the “Marketing Agent”) to assist the Managing Owner by providing support to educate institutional investors about the Deutsche Bank indices and to complete governmental or institutional due diligence questionnaires or requests for proposals related to the Deutsche Bank indices.

The Managing Owner pays the Marketing Agent a marketing services fee out of the Management Fee.

The Marketing Agent will not open or maintain customer accounts or handle orders for the Fund. The Marketing Agent has no responsibility for the performance of the Fund or the decisions made or actions taken by the Managing Owner.

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Financial Instrument Risk

3 Months Ended

Mar. 31, 2015

Investments, Debt and Equity Securities [Abstract]

Financial Instrument Risk

(6) Financial Instrument Risk

In the normal course of its business, the Fund is a party to financial instruments with off-balance sheet risk. The term “off-balance sheet risk” refers to an unrecorded potential liability that, even though it does not appear on the balance sheet, may result in a future obligation or loss in excess of the amounts shown on the Statement of Financial Condition. The financial instruments used by the Fund are commodity futures contracts, whose values are based upon an underlying asset and generally represent future commitments that have a reasonable possibility of being settled in cash or through physical delivery. The financial instruments are traded on an exchange and are standardized contracts.

Market risk is the potential for changes in the value of the financial instruments traded by the Fund due to market changes, including fluctuations in commodity prices. In entering into these commodity futures contracts, there exists a market risk that such commodity futures contracts may be significantly influenced by adverse market conditions, resulting in such commodity futures contracts being less valuable. If the markets should move against all of the commodity futures contracts at the same time, the Fund could experience substantial losses.

Credit risk is the possibility that a loss may occur due to the failure of the Commodity Broker and/or clearinghouse to perform according to the terms of a commodity futures contract. Credit risk with respect to exchange-traded instruments is reduced to the extent that an exchange or clearing organization acts as a counterparty to the transactions. The Commodity Broker, when acting as the Fund’s futures commission merchant in accepting orders for the purchase or sale of domestic commodity futures contracts, is required by CFTC regulations to separately account for and segregate as belonging to the Fund all assets of the Fund relating to domestic futures trading and the Commodity Broker is not allowed to commingle such assets with other assets of the Commodity Broker. In addition, CFTC regulations also require the Commodity Broker to hold in a secure account assets of the Fund related to foreign futures trading. The Fund’s risk of loss in the event of counterparty default is typically limited to the amounts recognized in the statement of financial condition and not represented by the commodity futures contract or notional amounts of the instruments.

The Fund has not utilized, nor does it expect to utilize in the future, special purpose entities to facilitate off-balance sheet financing arrangements and has no loan guarantee arrangements or off-balance sheet arrangements of any kind, other than agreements entered into in the normal course of business noted above.

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Share Purchases and Redemptions - Additional Information (Detail)	3 Months Ended
	Mar. 31, 2015 Basket
Equity [Abstract]
Minimum number of Baskets that can be purchased	1
Minimum number of Baskets that can be redeemed	1
Shares Redeemed	200,000

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Subsequent Events

3 Months Ended

Mar. 31, 2015

Subsequent Events [Abstract]

Subsequent Events

(11) Subsequent Events

The Fund evaluated the need for disclosures and/or adjustments resulting from subsequent events through the date the financial statements were issued. This evaluation did not result in any subsequent events that necessitated disclosures and/or adjustments.

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Organization - Additional Information (Detail) (USD $)	3 Months Ended	0 Months Ended
	Mar. 31, 2015 Basket Trust	Aug. 03, 2006	Dec. 31, 2014
Organization [Line Items]
Number of series of trust	7
General Shares, shares issued	40		40
Number of shares in a basket	200,000
Fund offered common units to authorized participants in number of basket	1
PowerShares DB Base Metals Fund [Member]
Organization [Line Items]
Number of series of trust		7
Partners' capital contribution		$ 1,000
General Shares, shares issued		40

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Schedule of Investments (Unaudited) - Treasury Bills (Parenthetical) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015		Dec. 31, 2014
U.S. Treasury Bills, 0.005% due April 2, 2015 [Member]
Schedule of Investments [Line Items]
Investment interest rate	0.005%	[1],[2]
Investment maturity date	Apr. 02, 2015	[1],[2]
U.S. Treasury Bills, 0.050% due April 16, 2015 [Member]
Schedule of Investments [Line Items]
Investment interest rate	0.05%	[1],[2]
Investment maturity date	Apr. 16, 2015	[1],[2]
U.S. Treasury Bills, 0.020% due April 23, 2015 [Member]
Schedule of Investments [Line Items]
Investment interest rate	0.02%	[1],[2]
Investment maturity date	Apr. 23, 2015	[1],[2]
U.S. Treasury Bills, 0.050% due April 30, 2015 [Member]
Schedule of Investments [Line Items]
Investment interest rate	0.05%	[1],[2]
Investment maturity date	Apr. 30, 2015	[1],[2]
U.S. Treasury Bills, 0.015% due May 7, 2015 [Member]
Schedule of Investments [Line Items]
Investment interest rate	0.015%	[1],[2]
Investment maturity date	May 07, 2015	[1],[2]
U.S. Treasury Bills, 0.020% due May 14, 2015 [Member]
Schedule of Investments [Line Items]
Investment interest rate	0.02%	[1],[2]
Investment maturity date	May 14, 2015	[1],[2]
U.S. Treasury Bills, 0.015% due June 11, 2015 [Member]
Schedule of Investments [Line Items]
Investment interest rate	0.015%	[1],[2]
Investment maturity date	Jun. 11, 2015	[1],[2]
U.S. Treasury Bills, 0.035% due July 2, 2015 [Member]
Schedule of Investments [Line Items]
Investment interest rate	0.035%	[1],[2]
Investment maturity date	Jul. 02, 2015	[1],[2]
Total United States Treasury Obligations [Member]
Schedule of Investments [Line Items]
Total United States Treasury Obligations, cost	230,991,966		236,993,093
U.S. Treasury Bills, 0.030% due January 2, 2015 [Member]
Schedule of Investments [Line Items]
Investment interest rate			0.03%	[1],[2]
Investment maturity date			Jan. 02, 2015	[1],[2]
U.S. Treasury Bills, 0.020% due January 15, 2015 [Member]
Schedule of Investments [Line Items]
Investment interest rate			0.02%	[1],[2]
Investment maturity date			Jan. 15, 2015	[1],[2]
U.S. Treasury Bills, 0.010% due January 22, 2015 [Member]
Schedule of Investments [Line Items]
Investment interest rate			0.01%	[1],[2]
Investment maturity date			Jan. 22, 2015	[1],[2]
U.S. Treasury Bills, 0.015% due January 29, 2015 [Member]
Schedule of Investments [Line Items]
Investment interest rate			0.015%	[1],[2]
Investment maturity date			Jan. 29, 2015	[1],[2]
U.S. Treasury Bills, 0.010% due February 5, 2015 [Member]
Schedule of Investments [Line Items]
Investment interest rate			0.01%	[1],[2]
Investment maturity date			Feb. 05, 2015	[1],[2]
U.S. Treasury Bills, 0.025% due February 12, 2015 [Member]
Schedule of Investments [Line Items]
Investment interest rate			0.025%	[1],[2]
Investment maturity date			Feb. 12, 2015	[1],[2]
U.S. Treasury Bills, 0.025% due March 12, 2015 [Member]
Schedule of Investments [Line Items]
Investment interest rate			0.025%	[1],[2]
Investment maturity date			Mar. 12, 2015	[1],[2]
U.S. Treasury Bills, 0.055% due March 26, 2015 [Member]
Schedule of Investments [Line Items]
Investment interest rate			0.055%	[1],[2]
Investment maturity date			Mar. 26, 2015	[1],[2]
U.S. Treasury Bills, 0.040% due April 2, 2015 [Member]
Schedule of Investments [Line Items]
Investment interest rate			0.04%	[1],[2]
Investment maturity date			Apr. 02, 2015	[1],[2]

[1] Security traded on a discount basis. The interest rate shown represents the discount rate at the time of issuance of the security.

[2] A portion of United States treasury obligation on deposit with the commodity broker are held as margin for open future contracts. See Note 3 for additional information.

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Statements of Cash Flows (Unaudited) (USD $)	3 Months Ended
	Mar. 31, 2015		Mar. 31, 2014
Cash flow from operating activities:
Net Income (Loss)	$ (9,704,758)		$ (15,964,910)
Adjustments to reconcile net income (loss) to net cash provided by (used for) operating activities:
Cost of securities purchased	(160,991,154)		(293,969,161)
Proceeds from securities sold and matured	213,999,868		224,998,818
Net accretion of discount on United States Treasury Obligations	(10,255)		(31,048)
Net realized (gain) loss on United States Treasury Obligations	(185)		(210)
Net change in unrealized (gain) loss on United States Treasury Obligations and Commodity Futures Contracts	(4,975,336)		2,811,150
Change in operating receivables and liabilities:
Payable for LME contracts	(717,370)		(7,076,125)
Management fee payable	(18,821)		40,298
Brokerage fee payable	(3,757)		415
Net cash provided by (used for) operating activities	37,578,232		(89,190,773)
Cash flows from financing activities:
Proceeds from sale of Shares	44,894,499		104,645,950
Redemption of Shares	(52,121,494)		(19,268,532)
Net cash provided by (used for) financing activities	(7,226,995)		85,377,418
Net change in cash	30,351,237		(3,813,355)
Cash at beginning of period	27,364,752	[1]	24,778,734	[1]
Cash at end of period	$ 57,715,989	[2]	$ 20,965,379	[2]

[1] Cash at December 31, 2014 and prior reflects cash held by the Predecessor Commodity Broker.

[2] Cash at March 31, 2015 reflects cash held by the Custodian.

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Fund Investment Overview - Additional Information (Detail) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Schedule of Investments [Abstract]
Deposits with broker	$ 43,497,187	$ 250,885,301
Percentage of assets held by broker	15.52%	100.00%
Restricted investments	$ 43,497,187	$ 18,366,219
Percentage of holdings considered restricted	15.52%	7.30%

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Net Asset Value and Financial Highlights

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Net Asset Value and Financial Highlights

(10) Net Asset Value and Financial Highlights

The Fund is presenting the following net asset value and financial highlights related to investment performance for a Share outstanding for the Three Months Ended March 31, 2015 and 2014. The net investment income (loss) and total expense ratios are calculated using average net asset value. The net asset value presentation is calculated using daily Shares outstanding. The total return is based on the change in net asset value of the Shares during the period. An individual investor’s return and ratios may vary based on the timing of capital transactions.

Net asset value per Share is the net asset value of the Fund divided by the number of outstanding Shares at the date of each respective period presented.

	Three Months Ended
	March 31, 2015			March 31, 2014
Net Asset Value
Net asset value per Share, beginning of period	$	15.99		$	16.78
Net realized and change in unrealized gain (loss) on United States Treasury Obligations and Commodity Futures Contracts		(0.76	)		(0.90	)
Net investment income (loss)		(0.03	)		(0.03	)
Net income (loss)		(0.79	)		(0.93	)
Net asset value per Share, end of period	$	15.20		$	15.85
Market value per Share, beginning of period	$	15.91		$	16.84
Market value per Share, end of period	$	15.17		$	15.86
Ratio to average Net Assets*
Net investment income (loss)		(0.80	)%		(0.73	)%
Total expenses		0.82	%		0.77	%
Total Return, at net asset value **		(4.94	)%		(5.54	)%
Total Return, at market value **		(4.65	)%		(5.82	)%

* Percentages are annualized.

** Percentages are not annualized.