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Index Weights
As Of:  03-Nov-2009
CommodityContract Expiry DateWeight %
Aluminium17-Nov-2010 / NOV03.28
Brent Crude15-Sep-2010 / OCT011.91
Copper - Grade A17-Mar-2010 / MAR06.01
Corn14-Dec-2009 / DEC93.48
Corn14-Dec-2010 / DEC00.87
Gold28-Apr-2010 / APR010.24
Heating Oil28-May-2010 / JUN09.6
Light Crude22-Jun-2010 / JUL012.16
Natural Gas27-Aug-2010 / SEP02.11
RBOB Gasoline30-Nov-2009 / DEC910.71
RBOB Gasoline29-Oct-2010 / NOV02.68
Silver28-Dec-2010 / DEC00.59
Silver29-Dec-2009 / DEC92.38
Soybeans12-Nov-2010 / NOV05.12
Sugar #1130-Jun-2010 / JUL07.74
Wheat14-Jul-2010 / JUL04.32
Zinc19-May-2010 / MAY06.79
Change to Follow the Optimum Yield™ version of the Deutsche Bank Liquid Commodity IndexTM - Excess Return

On June 1, 2006, the PowerShares DB Commodity Index Tracking Fund ("DBC") began to seek to track the performance of the Optimum Yield™ ("OY") version of the Deutsche Bank Liquid Commodity IndexTM - Excess Return ("DBLCI-ER"). The OY version of the DBLCI-ER provides a rules-based formula for replacing an expiring futures contract with a new futures contract having an expiration date that generates the highest "implied roll yield."

Please go to https://index.db.com – Traded Index Products – Commodities – DBLCI for a thorough description of the Optimum YieldTM contract selection formula.

A patent application concerning the Optimum YieldTM process is pending at the United States Patent and Trademark Office.

As of June 12, 2006, DBLCIX, the ticker symbol for the intra-day indicative level of the DBLCI, displays data for the OY version of the DBLCI-ER rather than the non-OY version of the DBLCI-ER. The historical DBLCI-ER data was normalized to have a level of 488.6960 on June 8, 2006, the closing level of the OY version of the DBLCI-ER as of that date.


 
Fund Weights
As Of:  03-Nov-2009
CommodityContract Expiry DateWeight %
Aluminium17-Nov-2010 / NOV03.35
Brent Crude15-Sep-2010 / OCT012.17
Copper - Grade A17-Mar-2010 / MAR06.14
Corn14-Dec-2009 / DEC92.3
Corn12-Mar-2010 / MAR01.58
Gold28-Apr-2010 / APR010.47
Heating Oil28-May-2010 / JUN09.81
Light Crude22-Jun-2010 / JUL012.42
Natural Gas27-Aug-2010 / SEP02.16
RBOB Gasoline29-Oct-2010 / NOV02.77
RBOB Gasoline30-Nov-2009 / DEC910.94
Silver28-Dec-2010 / DEC00.61
Silver29-Dec-2009 / DEC92.43
Soybeans12-Nov-2010 / NOV03.53
Soybeans14-Jan-2010 / JAN01.71
Sugar #1130-Jun-2010 / JUL07.91
Wheat14-Dec-2009 / DEC90.6
Wheat14-Jul-2010 / JUL02.16
Zinc19-May-2010 / MAY06.94
DBC Financial Details
Ticker: DBC
Last Update03-Nov-2009
16:14 PM
Price23.32
DB Commodity Index Level*475.1193
Indicative Intra-day
NAV**
24.2657
Last end of day
NAV***
24.26563
Last date for end
of day NAV
03-Nov-2009
Data Source:   www.nyse.com
(Data delayed 20 minutes)
   *Indicative intra-day and Index closing
   **Indicative intra-day value of the Fund
   ***Last end of day DBCNAV
About the Fund's Index
The Deutsche Bank Liquid Commodity Index - Optimum Yield Diversified Excess ReturnTM (DBLCIX) is composed of futures contracts on fourteen of the most heavily traded and important physical commodities in the world. The Index commodity components were chosen based on the depth and liquidity of their markets and to provide diversified commodity performance.

The Optimum YieldTM version of the Index provides a rules-based formula for replacing an expiring futures contract with a new contract having the highest "implied roll yield". This can minimize the negative effects of rolling futures contracts when a market is in contango (that is, when the next-to-expire contract is trading at a lower price than contracts expiring in later months) and maximize the positive effects of rolling futures contracts when a market is backwardated (that is, when the next-to-expire contract is trading at a higher price than contracts expiring in later months).

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