Volume Statistics
- ISE's equity options market share was 34% in September, a 13% increase compared to 30% for the same year-ago period.
- Overall, in its listings, ISE traded more volume in 513 of its 682 issues than any other options exchange.
- In September, ISE traded 26.4 million equity options contracts, up 20.4% from 21.9 million equity options contracts in the same year-ago period. In September, average daily volume (ADV) in equity options was 1,258,057 contracts, up 20.4% from an ADV of 1,044,747 equity options contracts in the same year-ago period.
- ISE executed more customer volume in its own listings than any other exchange in September.
- ISE was the lead market in September for options on 20 of the 30 stocks in the Dow Jones Industrial Average, which represented 71% of the index's total weighting. ISE was the lead market for options on 265 of the stocks in the Standard & Poor's 500 Index, which represented 65% of the index's total weighting. ISE was the lead market for options on 337 of the 1000 stocks in the Russell 1000 Index, which represented 61% of the index's total weighting.
