Interactive Brokers Chooses Wall Street Horizon for Earnings Calendar Data

Integration into Trader Workstation Adds Access to Accurate Earnings Calendar Data for Trading and Risk

Woburn, MA, May 25, 2010. Wall Street Horizon, provider of highly accurate earnings and events calendar information to institutional investment professionals and traders, today announced that Interactive Brokers, one of the premier securities firms for institutional and individual customers, is the latest firm to incorporate WSH's highly acclaimed information into their Trader Workstation application as a subscription-based service.

"We selected Wall Street Horizon because of their attention to detail," said Steve Sanders, Managing Director of Interactive Brokers LLC. "Our trading clients are demanding, our electronic trading platforms are sophisticated, and Wall Street Horizon operates the way we need vendors to operate - at the highest levels of speed and accuracy in the industry."

Interactive Brokers joins more than 50 major institutional firms who have selected Wall Street Horizon for its accuracy and responsiveness.

"We are very pleased to be working with Interactive Brokers," said Barry L. Star, Managing Director of Wall Street Horizon. "Our philosophies are very similar in that we both believe speed, accuracy, and superior technology are critical components for traders. We've been making great strides in attracting industry-leading firms like Interactive Brokers by offering solutions that maximize trader profitability and minimize trade error due to inaccurate data."

"We are pleased to be able to offer our clients a competitive advantage that pays for itself every day," Mr. Star added.

About Interactive Brokers
Interactive Brokers Group, Inc., together with its subsidiaries, is an automated global electronic market maker and broker specializing in routing orders and executing and processing trades in securities, futures, foreign exchange instruments, bonds and funds on more than 80 electronic exchanges and trading venues around the world. As a market maker, IB provides liquidity at these marketplaces and, as a broker, IB provides professional traders and investors with electronic access to stocks, options, futures, forex, bonds and mutual funds from a single IB Universal AccountSM. Employing proprietary software on a global communications network, Interactive Brokers is continuously integrating its software with a growing number of exchanges and trading venues into one automatically functioning, computerized platform that requires minimal human intervention.

About Wall Street Horizon

Wall Street Horizon is the industry's most accurate and trusted source of low-latency alerts and intra-day feeds of earnings calendar, dividend announcement, ETF and corporate events data. The company delivers machine-readable data feeds to institutional traders, market makers, brokerage firms, wealth managers and research platforms. For more than 10 years, Wall Street Horizon has provided clients with visibility ahead of volatility to gain a competitive advantage. For more information, please visit www.WallStreetHorizon.com.

Media contact:

Wall Street Horizon, Inc.
Kathleen M. Ryan
781.994.3500 x228
kryan@wallstreethorizon.com 

or

Graber Associates LLC
Tom Burke, 617-323-5694
tom@graberassociates.net