THE PHILADELPHIA STOCK EXCHANGE LAUNCHES INITIAL OPTIONS TRADING ON HEALTHSHARES™ EXCHANGE TRADED FUND

PHILADELPHIA – July 18, 2007 - The Philadelphia Stock Exchange (PHLX) announced today that it launched, for the first time in the marketplace, options on the HealthShares™ Emerging Cancer ETF (HHJ), an XShares Advisors Exchange Traded Fund. LaBranche Structured Products, LLC is the specialist.

Options on HealthShares™ Emerging Cancer ETF, which is based on the HealthShares™ Emerging Cancer Index, will trade on PHLX XL, the Exchange’s electronic trading platform, along with 19 other sector indexes and 2,584 equity options.

"PHLX is pleased to debut exchange-listed options on HealthShares Emerging Cancer ETF,” said PHLX Vice President of New Products, Daniel Carrigan. “HealthShares Exchange Traded Funds represent an opportunity for portfolio managers to gain exposure to the fast growing global health care industry.”

"HHJ has steadily attracted investor interest since its launch at the end of January 2007,” said Jeffrey Feldman, Founder and Chairman of New York City-based XShares Group. HealthShares, the first family of ETFs to be launched by XShares, is a suite of 20 healthcare industry-level ETFs listed on the NYSE. “With the introduction of this option on HHJ, investors will have even more tools available to them to invest in the healthcare sector.”

About the PHLX
The Philadelphia Stock Exchange was founded in 1790. The PHLX trades over 7,000 stocks, 2,584 equity options, 19 sector index options and currency options and futures. For more information about the PHLX and its products, visit www.phlx.com.

About HealthShares
XShares Advisors LLC, a financial services company based in New York, is the creator of the HealthSharesä family of Exchange Traded Funds (ETFs). HealthShares? ETFs are organized into therapeutic ‘Verticals’ and represent specific areas of the healthcare, life science and biotechnology industries. Each Vertical addresses a distinct sub-segment of healthcare, such as the diagnosis and treatment of specific therapeutic areas (e.g. cardiology, cancer, infectious disease, etc.) and the development of medical devices (e.g. orthopedic repair, cardio devices, etc.). Each ETF tracks an index of 22-25 stocks and offers institutional and individual investors a more precise financial instrument that leverages the potential of healthcare investing while mitigating the risks of single stock picking. For more information, visit the company’s website at: www.healthsharesinc.com.

About XShares
XShares Advisors LLC, a subsidiary of XShares Group LLC, is a registered investment advisor that provides investment advisory services to Exchange Traded Funds. XShares also partners with major institutions and index providers seeking to bring innovative Exchange Traded Funds to market using its administrative platform. In addition, XShares creates and licenses distinctive intellectual property for its ETFs, developing products that allow for innovative trading strategies and alternative investments for the financial community. For more information, visit the company’s website at www.xsharesadvisors.com.

An Investor should consider the fund’s investment objective, risks, charges and expenses carefully before investing. For this and more complete information about the fund call 800.925.2870 or visit the website www.healthsharesinc.com for a prospectus. Please read the prospectus carefully before investing.

There are risks involved with investing in ETFs including possible loss of money. HealthShares™ are not actively managed and are subject to risks similar to stocks, including those related to short selling and margin maintenance. Losses from short sales may be unlimited, and losses from purchases on margin may exceed original investment. HealthShares™ ETFs are subject to increased risks associated with investing in a specific sector compared to a more diversified investment, as well as unique risks associated with the healthcare and biotechnology sector (i.e., government regulation, patent regulation, etc.).

The ETF's face additional risks attributable to their investments in small and medium
capitalization companies which are subject to higher volatility than larger, more established companies. In addition, they are invested in a limited number of securities and a decline in the value of these investments would cause the fund's overall value to decline to a greater degree than in a less concentrated portfolio.

Global or International Funds invest in foreign securities that will be subject to certain risks not associated with domestic securities, such as currency fluctuations, and changes in political andeconomic conditions.

The prospectus is not an offer to buy or sell the portfolio shares, nor is the fund soliciting an offer to buy its shares in any jurisdiction where the offer or sale is not permitted

HealthShares™ Exchange Traded Funds are distributed by ALPS Distributors, Inc.

XShares Advisors LLC and ALPS Distributors Inc. are non-affiliated entities.

HSI 291 EXP 8/31/2007

CONTACTS:
Philadelpha Stock Exchange XShares Advisors LLC

Barbara Sorid
215-496-5200
Barbara.Sorid@phlx.com

Michael Antinoro
646-467-8626
mantinoro@xsharesadvisors.com