State Street Global Advisors Launches Six New Exchange-Traded Funds; ETFs Track Performance of Wide Variety of Industry Segments.

BOSTON -- State Street Global Advisors (SSgA), the investment management arm of State Street Corporation (NYSE: STT) and the largest institutional money manager in the world(a), today launched six industry-specific exchange-traded funds (ETFs) on the American Stock Exchange(R) (Amex(R)): SPDR(R) Metals & Mining ETF (XME); SPDR Pharmaceuticals ETF (XPH); SPDR Oil & Gas Equipment & Services ETF (XES); SPDR Oil & Gas Exploration & Production ETF (XOP); SPDR Retail ETF (XRT); and streetTRACKS(R) KBW Regional Banking(SM) ETF (KRE).

These ETFs provide financial advisors with access to the following industry sectors:

--SPDR Metals & Mining ETF - metals/mining and coals/consumable fuels companies

--SPDR Pharmaceuticals ETF - pharmaceutical companies

--SPDR Oil & Gas Equipment & Services ETF - oil/gas equipment/services companies and oil/gas drilling firms

--SPDR Oil & Gas Exploration & Production ETF - oil/gas exploration and production; coal/consumable fuels; oil/gas refining and marketing; and integrated oil/gas companies

--SPDR Retail ETF - retailing, consumer durables/apparel and food/staples retailing companies; and

--streetTRACKS KBW Regional Banking ETF - primarily small and mid-capitalization regional banks and thrifts.

The SPDR ETFs are benchmarked to the Standard & Poor's (S&P) Select Industry(TM) Indexes. The streetTRACKS KBW Regional Banking ETF (KRE) is benchmarked to the KBW Regional Banking Index(1) (Ticker: KRX) which consists of regional banks and thrifts with market capitalizations ranging from $700 million to $10 billion. KRE is the latest addition to the family of tradable ETFs and indices of Keefe, Bruyette & Woods which track the performance of the insurance, banking and capital markets industries within the financial services sector of the S&P 500(TM) Index.

"At a time when investors are seeking new options in search of the potential for higher returns or more refined portfolio construction, these ETFs provide a real benefit through their precise exposure to targeted industries," said Greg Ehret, senior managing director of SSgA. "Our ability to provide investment options that enable access to precise market segments underscores our ongoing commitment to the evolving needs of professional investors."

The S&P Select Industry Indexes are constructed from a universe of more than 5,000 securities that collectively comprise the S&P Total Market Index(TM) (S&P TMI). The S&P TMI measures the performance of common equities listed on NYSE, Amex, NASDAQ National Market and NASDAQ Small Cap exchanges. Each S&P Select Industry Index is constructed with an equal-weighted methodology and is rebalanced quarterly. This rebalancing prevents a few select stocks from dominating the performance of the index.

SSgA currently has about $90 billion in ETF assets under management worldwide (at March 31, 2006) and is one of the largest providers in the U.S. and globally, with a market share of more than 19 percent (b). SSgA continues to experience significant demand for these investment strategies and today manages a total of 65 ETFs worldwide.

"Amex is proud of our longtime relationship with State Street Global Advisors, and the launch of these ETFs is a further example of our ability to team up with issuer partners to provide innovative investment vehicles to the market" said Cliff Weber, senior vice president of the Amex ETF Marketplace. "These ETFs accommodate a growing demand from investors that are seeking targeted ETFs to complement their investment portfolios."

About State Street Global Advisors

State Street Global Advisors, the investment management group of State Street Corporation, delivers investment strategies and integrated solutions to clients worldwide across every asset class, investment approach and style. With $1.5 trillion in investment programs and portfolios at March 31, 2006, State Street Global Advisors has investment centers in Boston, Hong Kong, London, Milan, Montreal, Munich, Paris, Singapore, Sydney, Tokyo, and Zurich, and offices in 25 cities worldwide. For more information, visit State Street Global Advisors at www.ssga.com.

About the American Stock Exchange

The American Stock Exchange(R) (Amex(R)) is the only primary exchange that offers trading across a full range of equities, options and exchange traded funds (ETFs), including structured products and HOLDRS(SM). In addition to its role as a national equities market, the Amex is the pioneer of the ETF, responsible for bringing the first domestic product to market in 1993. Leading the industry in ETF listings, the Amex currently lists 181 ETFs. The Amex is also one of the largest options exchanges in the U.S., trading options on broad-based and sector indexes and ETFs, as well as domestic and foreign stocks.

(a) Pensions & Investments - May 31, 2006

(b) Source: SSgA Advisor Consulting Services as of May 31, 2006

ETFs trade like a stock and are subject to market risk. An investor should consider the investment objectives, risks, charges, and expenses carefully before investing. To obtain a prospectus, which contains this and other information about the funds, visit (www.advisors.ssga.com/etf). Please read the prospectus carefully before investing.

streetTRACKS(R), SPDR Metals & Mining, SPDR Pharmaceuticals, SPDR Oil & Gas Equipment and Services, SPDR Oil & Gas Exploration and Production, and SPDR Retail are distributed by State Street Global Markets, LLC, member NASD, SIPC.

The S&P Indexes are trademarks of The McGraw-Hill Companies, Inc. and have been licensed for use by State Street Bank and Trust Company. The Product is not sponsored, endorsed, sold or promoted by Standard & Poor's and Standard & Poor's makes no representation regarding the advisability of investing in the strategy, fund or product.

The shares ("Shares") of streetTRACKS KBW ETFs, a series of the streetTRACKS Series Trust are not sponsored, endorsed, sold or promoted by Keefe, Bruyette & Woods ("KBW"). KBW makes no representation or warranty, express or implied, to the owners of the Shares or any member of the public regarding the advisability of investing in securities generally or in the Shares particularly or the ability of the KBW Regional Banking, Capital Markets, Bank and Insurance Index to track general stock market performance. KBW's only relationship to State Street Bank and Trust Company is the licensing of certain trademarks and tradenames of KBW and the KBW Regional Banking, Capital Markets, Bank and Insurance Index which is determined, composed and calculated by KBW without regard to State Street Bank and Trust Company, streetTRACKS or the Shares. KBW has no obligation to take the needs of State Street Bank and Trust Company or the owners of the shares into consideration in determining, composing, or calculating the KBW Regional Banking, Capital Markets, Bank and Insurance Index. KBW is not responsible for and has not participated in any determination or calculation made with respect to issuance or redemption of the Shares. KBW has no obligation or liability in connection with the administration, marketing or trading of the Shares.

Funds investing in a single sector may be subject to more volatility than funds investing in a diverse group of sectors.

Before investing, consider the funds' investment objectives, risks, charges and expenses. A prospectus, which contains this and other important information about the fund can be obtained by calling 866.787.2257. Read it carefully before investing.

(1) The KBW Regional Banking Index (KRX) is calculated as an equal market capitalization-weighted adjusted for float shares methodology and consists of 50 banking institutions. KRX is a complement to the KBW Bank Index (BKX) which consists of the top 24 banks and thrifts in the United States. The next 50 banks and thrifts are the members within the KRX.