The development of ISE has been continually accelerating, as the broker-dealer community embraces the unique structure and many efficiencies that ISE has introduced to the industry. ISE traded its first 25 million contracts on its one-year anniversary, its 50- millionth contract four months later, its 75-millionth contract within three months and this newest milestone only two months later.
ISE's market share in the 489 issues that it currently trades has grown to 21%, while its share in all listed equity options has risen to 18.6%. Further indication of the benefits that are being realized by investors and traders on the world's only exchange to combine auction market principles with electronic trading: ISE is now the primary market, as measured by volume, in 121 of its issues.
