PowerShares' S&P 500 BuyWrite ETF Crosses One Year Mark, Outperforming the More Volatile S&P 500 Index Benchmark

CHICAGO, IL, Jan 12 (MARKET WIRE) --
Invesco PowerShares Capital Management LLC, a leading provider of
exchange-traded funds (ETFs), today announced the one year anniversary of
its S&P 500 BuyWrite Portfolio (NYSE: PBP). Since its inception (as of
12/20/07), PBP has outperformed the S&P 500 Index by a cumulative 7.10%.

In April 2008, PBP was recognized at the Capital Link Forum on Closed End
Funds and ETFs with The Award for Most Innovative New ETF in 2007, due to
its unique ability to provide efficient access to a buy-write options
strategy on one of the most widely used benchmarks in the world -- the S&P
500 Index.

"In December of 2007 we launched PBP, the first ETF to make significant
use of options strategies, and now -- one year later -- we are able to
celebrate the relative outperformance PBP has brought its investors," said
Bruce Bond, president of Invesco PowerShares. "We believe a buy-write
strategy can be used to reduce volatility and enhance portfolio returns,
and this past year's volatility has been a boon for PBP, as it has
outperformed nearly every major broad U.S. stock index."(1)

PBP Performance (as of 12/20/08)
Since Sharpe
1 Year 3 Year 5 Year 10 Year Inception* Ratio+
------ ------ ------ ------- ---------- ------
PowerShares S&P 500
BuyWrite Portfolio
(NAV) -30.67 N/A N/A N/A -30.67 -1.63
After-Tax Held -31.12 N/A N/A N/A -31.12 N/A
After-Tax Sold -26.24 N/A N/A N/A -26.24 N/A
Share Price -30.44 N/A N/A N/A -30.44 -1.50
CBOE S&P 500
BuyWrite Index -30.26 -5.8 -0.84 5.01 -30.26 -1.54
S&P 500 Index -37.77 -9.18 -2.12 -0.23 -37.77 -1.87

PBP Standardized Performance (as of 12/31/08)
Since
1 Year 3 Year 5 Year 10 Year Inception*
------ ------ ------ ------- ----------
PowerShares S&P 500
BuyWrite Portfolio
(NAV) -29.72% N/A N/A N/A -28.17%
After Tax Held -30.18% N/A N/A N/A -28.62%
After-Tax Sold -19.24% N/A N/A N/A -24.10%
Share Price Return -29.08% N/A N/A N/A -27.50%
CBOE S&P 500
BuyWrite Index -28.65% -4.84% -0.55% 2.20% -27.60%
S&P 500 Index -37.00% -8.34% -2.19% -1.38% -35.69%

(1) Source: Invesco PowerShares Capital Management. Major broad U.S.
stock indexes are defined as the S&P 500 Index, Russell 3000 Index and
the Dow Jones Industrial Average.

* Since inception returns are based on the inception date of the Fund:
Dec. 20, 2007.

+ Sharpe ratios are based on the inception date of the Fund through
12/20/08. Sharpe ratio is the risk-adjusted return and is the return less
the risk-free rate divided by the standard deviation.

As stated in the Fund's prospectus, the expense ratio of 0.75% is
expressed as a unitary fee to cover expenses incurred in connection with
managing the portfolio. Past performance is not a guarantee of future
results: current performance may be higher or lower than performance
quoted. Investment returns and principal value will fluctuate and Shares,
when redeemed, may be worth more or less than their original cost. The
Shares' performance reflects fee waivers, absent which performance would
have been lower. See invescopowershares.com for the most recent month-end
performance numbers. After-tax returns reflect the highest federal income
tax rate but exclude state and local taxes. Fund performance reflects fee
waivers, absent which, performance data quoted would have been lower.
After Tax Held and After Tax Sold are based on NAV. The S&P 500(R) Index
is an unmanaged index considered representative of the U.S. stock market.

The buy-write strategy, also called a "covered call" strategy, is an
investment strategy in which an investor or advisor buys a stock or a
basket of stocks and sells ("writes") call options that cover the stock
position. This allows investors to gain income and a small cushion of
protection through the sale of covered call options -- in exchange for
some upside potential on their stock or portfolio position. PBP was
designed to provide investors this strategy within the convenient,
cost-effective ETF framework.

The CBOE S&P 500 BuyWrite Index, on which the ETF is based, was originally
created by the Chicago Board Options Exchange (CBOE), the world's first
options risk-management marketplace and one of the largest securities
exchanges in the world. In 2004 the Index was awarded the Most Innovative
Benchmark Index of the year by Information Management Network (IMN).

Invesco PowerShares Capital Management LLC is leading the intelligent ETF
revolution through its family of more than 130 domestic and international
exchange-traded funds, which seek to outperform traditional benchmark
indexes while providing advisors and investors access to an innovative
array of focused investment opportunities. With assets under management of
$12.10 billion as of Sept. 30, 2008, PowerShares ETFs trade on all three
U.S. stock exchanges. For more information, please visit us at
www.invescopowershares.com.

Invesco PowerShares is a part of Invesco Ltd., a leading independent
global investment management company, dedicated to helping people
worldwide build their financial security. By delivering the combined
power of our distinctive worldwide investment management capabilities,
including AIM, Atlantic Trust, Invesco, Perpetual, PowerShares, Trimark,
and WL Ross, Invesco provides a comprehensive array of enduring
investment solutions for retail, institutional and high net worth clients
around the world. Operating in 20 countries, the company is listed on the
New York Stock Exchange under the symbol IVZ. Additional information is
available at www.invesco.com.

There are risks involved with investing in ETFs including possible loss of
money. Shares are not actively managed and are subject to risk similar to
stocks and covered call options, as well as those risks related to short
selling and margin maintenance. Ordinary brokerage commissions apply.

Covered call options strategies are not suitable for all investors.

Shares are not FDIC insured, may lose value and have no bank guarantee.

There are additional risks involved in writing (selling) covered call
options on the stocks of the S&P 500 Index (Index). The Fund, by writing
covered call options on this Index, will give up the opportunity to
benefit from potential increases in the value of the index stocks above
the exercise prices of the options, but will continue to bear the risk of
declines in the value of the Index. The premiums received from the options
may not be sufficient to offset any losses sustained from the volatility
of the Index over time. In addition, exchanges may suspend trading of
options in volatile markets. If trading is suspended, the Fund may be
unable to write (sell) options at times that may be desirable or
advantageous for the Fund to do so. Trading suspensions may limit the
Fund's ability to achieve its investment objectives.

The Fund may be required to sell investments from its portfolio to make
cash settlement on (or transfer ownership of an Index stock to physically
settle) any options that are exercised. Such sales (or transfers) may
occur at inopportune times, and the Fund may incur transaction costs that
increase its expenses.

The Chicago Board Options Exchange is the index provider for the
PowerShares S&P 500 BuyWrite Portfolio. CBOE is not affiliated with the
Trust, the Adviser or the Distributor. The Adviser has entered into a
license agreement with the Index Provider to use the Underlying Index. The
PowerShares S&P 500 BuyWrite Portfolio is entitled to use its respective
Underlying Index pursuant to a sublicensing arrangement with the Adviser.

"S&P," "S&P 500" and "S&P 500(TM) Index" are registered trademarks of
Standard & Poor's Ratings Group, a division of The McGraw-Hill Companies,
Inc. (S&P). S&P has granted Invesco PowerShares Capital Management LLC
("Licensee") a license to use the CBOE S&P 500 BuyWrite Index for purposes
of Licensee's PowerShares S&P 500 BuyWrite Portfolio. The CBOE S&P 500
BuyWrite Index(TM) is a trademark of CBOE and has been licensed for use
for certain purposes by the Adviser.

Shares are not individually redeemable and owners of the Shares may
acquire those Shares from the Fund and tender those Shares for redemption
to the Fund in Creation Unit aggregations only, typically consisting of
100,000 shares.

PowerShares(R) is a registered trademark of Invesco PowerShares Capital
Management LLC. Invesco PowerShares Capital Management LLC and Invesco Aim
Distributors, Inc. are wholly owned subsidiaries of Invesco Ltd.

Invesco Aim Distributors, Inc. is the distributor of the PowerShares
Exchange-Traded Fund Trust.

An investor should consider the Fund's investment objectives, risks,
charges and expenses carefully before investing. For this and more
complete information about the Fund, call 800.983.0903. Please read the
prospectus carefully before investing.

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