Volume Statistics
- ISE's equity options market share was 30% in August, a 30% increase
compared to 23% for the same year-ago period.
- Overall, in its listings, ISE traded more volume in 379 of its 562
issues than any other options exchange.
- In August, ISE traded 17.8 million equity options contracts, up 35%
from 13.2 million equity options contracts in the same year-ago period.
Average daily volume in August was 849,244 contracts, up 41% from 601,683
contracts in the same year-ago period.
- ISE was the lead market in August for options on 23 of the 30 stocks in the Dow Jones Industrial Average, which represented 74% of the index's total weighting. ISE was the lead market for options on 225 of the stocks in the Standard & Poor's 500 Index, which represented 64% of the index's total weighting. ISE was the lead market for options on 288 stocks of the 1000 stocks in the Russell 1000 Index, which represented 60% of the index's total weighting.
