The most common option contracts are puts and calls.
Option contracts were known in ancient history but the 1970s saw an explosion in their use.
The ISE started in 2000 with a market share of just over 1% of all equity option contracts traded.
About three-quarters of those sites, he estimated, are not readily available, because they are already under option contracts.
That means this is the first tax year these funds will be reported to the I.R.S. Reporting for bonds and option contracts doesn't begin until next year.
It also bought at least 10,900 put option contracts, a derivatives trade that would magnify the fund's profits if the price of Dell's stock dropped.
On June 29, 250 more HotJobs July $10 call option contracts changed hands before HotJobs disclosed the purchase after the close of regular trading.
One way Mr. Rusnak hid his losses, according to executives of Allied Irish, was by selling option contracts to other currency traders.
It is now considering migrating the clearinghouse for the swap and option contracts from the United States to Britain to bring it closer to most of its customers, said Mr. Leaver, the D.M.E.
introduced eight swap and option contracts linked to the Oman futures contract last year; but no trading has taken place on any of them since March 7 this year, according to the exchange's published figures.
In a section of the lawsuit called "objectionable trading practices," Mr. Peikin claims that in 2008 Mr. Eichler transferred at least $500,000 from client accounts into Aletheia accounts to buy Chinese currency option contracts.
