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The Formation of ISE

    The broker/dealers comprising the original investors in ATP account for approximately 10% of the total customer order flow in stock options. This order flow provides a solid foundation for ISE to build its business upon. The investors in ATP include: Ameritrade; E*Trade; Herzog, Heine, Geduld, Inc.; Knight/Trimark Group, Inc.; Scottsdale Securities and other broker/dealers whose participation in this new market will be announced at a later date.

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