ProShares to Transfer Securities from American Stock Exchange to NYSE Arca in Connection with NYSE Euronext's Acquisition of Amex

ProShares announced today that the listing of the following 64 ProShares exchange-traded funds currently listed on the American Stock Exchange (Amex) will be transferred to NYSE Arca in the fourth quarter following the recent close of NYSE Euronext's acquisition of the Amex:

Names of ProShares, their objectives and ticker symbols:

Specific dates for the transfer in listing of each of the securities will be provided in advance of the change.

About ProShares and ProFunds Group

ProShares is part of the $25 billion ProFunds Group, the world's largest manager of short and leveraged ETFs and mutual funds.¹ ProFunds Group also includes the family of more than 100 ProFunds mutual funds and manages the Canada-based Horizons BetaPro Funds.

ProFunds Group includes ProFunds mutual funds and ProShares ETFs.

All investing involves risk, including the possible loss of principal. Short ProShares should lose value when their market indexes rise, and they entail certain risks, including, in some or all cases, aggressive investment techniques, inverse correlation and market price variance risks, all of which can increase volatility and decrease performance. ProShares are not diversified investments. Narrowly focused investments, including sector ETFs, typically exhibit higher volatility. ProShares are designed to meet daily objectives; results over longer periods may differ. There is no guarantee that any ProShares ETF will achieve its investment objective.

Carefully consider the investment objectives, risks, charges and expenses of ProShares and ProFunds before investing. This and other information can be found in their prospectuses. Read the prospectus(es) carefully before investing. For a ProShares ETF prospectus, visit www.proshares.com and seek advice from your financial adviser or broker/dealer representative. Financial professionals can also call 866-PRO-5125. For a ProFunds mutual funds prospectus, call 888-PRO-FNDS (individual investors) or 888-PRO-5717 (financial professionals), or visit www.profunds.com. Read the prospectus(es) carefully before investing.

ProFunds Distributors, Inc. is distributor for ProFunds mutual funds. ProShares ETFs are distributed by SEI Investments Distribution Co., which is not affiliated with ProFunds Group or its affiliates.

"QQQ^®" and "NASDAQ-100^®" are trademarks of The Nasdaq OMX Group, Inc. "S&P 500^®" Index, S&P MidCap 400^TM Index and S&P SmallCap 600^TM Index are trademarks of The McGraw-Hill Companies, Inc. "Dow Jones Industrial Average^SM," "The Dow 30^SM," "Dow Jones U.S. Sector Indexes" and "Dow Jones Select Sector Indexes" are service marks of Dow Jones & Company, Inc. The Russell 2000^® Index, Russell 2000^® Growth Index, Russell 2000^® Value Index, Russell 1000^® Growth Index, Russell 1000^® Value Index, Russell Midcap^® Growth Index, and Russell Midcap^® Value Index are trademarks of the Russell Investment Group. MSCI, MSCI Inc., MSCI Index and EAFE are service marks of MSCI. Lehman Brothers and Lehman Brothers Inc. are trademarks of Lehman Brothers Inc. FTSE/Xinhua China 25 is a trademark of FTSE/Xinhua Index Limited ("FXI"). All have been licensed for use by ProShares. "FTSE^®" is a trademark of the London Stock Exchange PLC and The Financial Times Limited and is used by FXI under license. "Xinhua^®" is a trademark of Xinhua Finance Limited and is used by FXI under license. ProShares have not been passed on by these entities or their affiliates as to their legality or suitability. ProShares are not sponsored, endorsed, sold or promoted by these entities or their affiliates, and they make no representation regarding the advisability of investing in these products. THESE ENTITIES AND THEIR AFFILIATES MAKE NO WARRANTIES AND BEAR NO LIABILITY WITH RESPECT TO PROSHARES.

2008-4063

¹ ProFunds Group assets as of 9/30/08. "Largest manager" source: Lipper, based on a worldwide analysis of all of the known providers of publicly traded funds in these categories. The analysis covered ETFs, ETNs, and mutual funds by the number of funds and assets (as of 6/30/2008).