Press

The International Securities Exchange (ISE) announced today that its Depth of Market Feed for options is now available through PrecISE Trade™, its proprietary front-end trading application. ISE’s Depth of Market Feed is a real-time data feed that provides the aggregated volume of all quotes and orders available at each of the top five price levels for options that trade on ISE.
With ISE’s Depth of Market Feed, PrecISE users will now have market transparency for ISE’s options exchange beyond the Best Bid and Offer (BBO) to enhance their trading efficiency. The Depth of Market Feed will also enable PrecISE users to view the size of customer orders at all price levels. All PrecISE users will immediately have trial access to the Depth of Market Feed through their existing subscriptions.

Launched in October 2007, the Depth of Market feed is delivered using the FIX FAST protocol. In addition to being available through PrecISE Trade, the feed is currently distributed from a number of connectivity providers including BT Radianz via its Radianz Shared Market Infrastructure and by NYSE TransactTools Secure Financial Transaction Infrastructure (SFTI®) on a subscription basis.

For more information on PrecISE, please visit www.ise.com/precise or send an email to bizdev@ise.com. For more information on how to subscribe to the ISE Depth of Market Feed, please visit www.ise.com/depth or send an email to depth@ise.com.

ISE Background
The International Securities Exchange operates a family of fully electronic trading platforms, creating efficient markets through innovative technology and market structure. ISE’s markets portfolio consists of an options exchange and a stock exchange. As the world’s largest equity options trading venue, ISE offers equity, ETF, index, and FX options. The ISE Stock Exchange trades approximately 6,000 products, and is the only fully electronic equities platform that provides the opportunity for continuous price improvement through the interaction of its non-displayed liquidity pool, MidPoint Match, and its displayed stock market. ISE Alternative Markets is scheduled to launch in 2008 and will offer an events market trading platform for derivatives auctions. To complement its markets and enable investors to trade smarter, ISE creates innovative new products including a portfolio of proprietary indexes and enhanced market data products for sophisticated investors.

ISE is a wholly owned subsidiary of Eurex, a leading global derivatives exchange. Eurex itself is jointly owned and operated by Deutsche Börse AG (Ticker: DB1) and SWX Swiss Exchange. Together, Eurex and ISE are the global market leader in individual equity and equity index derivatives.

For more information about ISE, visit www.ise.com.

Contact:
Media:
Molly H. McGregor
International Securities Exchange
+1-212-897-0275
mmcgregor@ise.com