International Securities Exchange, Inc. - ISE Advantage - Quality of Markets

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Quality of Markets

QUALITY OF ISE MARKETS

The ISE began trading on May 26, 2000, and is the largest equity options exchange in the U.S. The ISE�s unique market structure and technology for trading options enable the Exchange to provide deep and liquid markets with competitive prices.

PRIORITY FOR CUSTOMER ORDERS
Orders from customers are the highest priority on the ISE. Features of the market include:

Away Market Price Protection
A customer order will not be automatically executed against the ISE BBO if another options exchange has posted a better price.

When the ISE does not post the best bid or offer (BBO) in an option, orders are presented to the PMM for execution. The PMM may match the better away market price or attempt to get the better price in the other market.