NYSE Euronext said its cash trading in equities in the United States is down 21.8% from a year ago, while it global volume in derivative transactions is up 8.4%.

The operator of the New York Stock Exchange, NYSE Arca and NYSE Amex markets said it executed 6.3 million derivatives contracts each day in August. This was driven, it said, by a 30.3% gain in trading in equity options in the United States. European trading dropped 6%.

Global derivatives average daily volume (“ADV”) increased 8.4% to 6.3 million contracts traded per day in August 2010.  The increase in global derivatives ADV versus prior year levels was driven by a 30.3% increase in U.S. equity options ADV, partially offset by a 6.0% decrease in European derivatives ADV during the seasonally slower summer period.  Cash equities ADV in August 2010 were down, with European and U.S. cash trading volumes decreasing 1.9% and 21.8%, respectively, compared to prior year levels.

Even so, the company's global trading in derivatives decreased 10.7% in August, from July levels.  NYSE Euronext’s U.S. equity options exchanges accounted for 25.2% of its total equity options trading in August, up from 18.2% in August 2009, but down slightly from 25.3% in July.

In Europe, cash trading in equities decreased 1.9 percent from a year ago and 9.7% from a month ago. In the U.S., cash products amounted to 2.3 billion shares of daily trading volume, down 21.8% from a year ago and 12.4% from a month ago.