Trading in options on the S&P 500 Index (SPX) also reached a new milestone, with more than 996,703 contracts reported, breaking the previous volume record of 801,974 contracts traded on September 16, 2005. Open interest in SPX options at today's open was 6,808,762 contracts. Average daily volume in SPX options during 2005 was 284,931 contracts, 45% higher than the year before.
CBOE's top ten trading volume days have all occurred within the past 9 months:
1. 3,969,548 - 04/15/05
2. 3,615,458 - 12/15/05
3. 3,615,058 - 01/19/06
4. 3,516,387 - 10/21/05
5. 3,247,509 - 10/20/05
6. 3,221,799 - 12/16/05
7. 3,164,341 - 11/18/05
8. 3,083,451 - 10/19/05
9. 3,057,090 - 10/6/05
10. 3,045,478 - 9/16/05
CBOE, the world's largest options marketplace and the creator of listed options, is regulated by the SEC. For additional information about the CBOE and its products, access the CBOE website at: http://www.cboe.com/