INTERACTIVE BROKERS GROUP, INC. INCREASES SIZE OF PROPOSED IPO.

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Interactive Brokers Group, Inc. Increases Size of Proposed IPO

GREENWICH, Conn., April 30 /PRNewswire-AsiaNet/ --

Interactive Brokers Group, Inc. today announced that it has filed an amendment to its registration statement on Form S-1, originally filed with the U.S. Securities and Exchange Commission on November 27, 2006, relating to an increase in the size of, and the expected price range for, the proposed initial public offering of shares of its Class A common stock.

In the proposed initial public offering, Interactive Brokers Group, Inc. now expects to sell 34,500,000 shares of its Class A common stock at between $27.00 and $31.00 per share, increased from 20,000,000 shares at between $23.00 and $27.00 per share.

As previously disclosed in the registration statement, all net proceeds from the sale of shares in the offering will be received by the current members of IBG LLC, the current holding company for its electronic market making and brokerage business.

W.R. Hambrecht + Co., LLC, HSBC Securities (USA) Inc., Fox-Pitt, Kelton Incorporated, Sandler O'Neill + Partners, L.P. and E*Trade Securities LLC are acting as the placement agents for the offering which will be made through WR Hambrecht + Co's OpenIPO(R) auction-based process on a best efforts basis.