On a year-to-date basis, average daily volume increased 15.7% to 1.7 million contracts traded as compared to 1.5 million contracts traded in the prior year. Total equity options volume increased 15.7% to 174.5 million contracts versus 150.9 million contracts in the same period last year.
Equity Options Volume Statistics
| Current Month | Year-to-Date | |||||
| (000s) | May-05 | May-04 | % Change |
May-05 | May-04 |
% Change |
| ISE Average Daily Volume | 1,545.9 | 1,378.3 | 12.2% | 1,694.2 | 1,464.7 | 15.7% |
| ISE Total Volume | 32,463.1 | 27,566.7 | 17.8% | 174,504.4 | 150,859.1 | 15.7% |
| Industry Average Daily Volume | 4,738.2 | 4,050.6 | 17.0% | 5,148.7 | 4,534.1 | 13.6% |
| Market Share | 32.6% | 34.0% | (1.4) pts | 32.9% | 32.3% | 0.6 pts |
Monthly Highlights
-- ISE traded more volume in 484 of 736 issues in its listings than any other options exchange.
-- ISE was the lead market in May in the following indexes and accounted for at least 65% of the total weighting in each index:
-- Dow Jones Industrial Average: 24 of 30 equities which represented 79% of the total weighting of the index.
-- S&P 500: 247 of 500 equities which represented 70% of the total weighting of the index.
-- Russell 1000: 319 of 1,000 equities which represented 65% of the total weighting of the index.
-- ISE traded its one billionth contract on May 24, 2005.
