NYSE Euronext said that its equities trading in the U.S. and its derivatives trading worldwide were down in January, compared to a year ago.

The exchange operator said average daily volume in derivatives around the world was down 2.7 percent, to 9.0 million contracts a day in January 2011 versus 2010.

Equities trading in the United States on its NYSE, NYSE Arca and NYSE Amex exchanges was down 12.2 percent in January 2011, compared to 2010. Average daily volume was 2.4 billion shares.

The company's matched market share in NYSE-listed stocks was 33.9 percent in January 2011, compared to 34.3 percent a year ago and 35.0 percent in December 2010.

There were bright spots.

Equities trading in Europe was up 28 percent, compared to January 2010. Average daily volume was1.8 million transactions in January

European equities volume  also was up 44.1 percent from December.

And, in general, activity in January 2011 was way up from December 2010.

Global derivatives trading, for instance was up 35.6 percent from December. This derived from a 78.0 percent increase in European fixed income derivatives and a 29.5 percent increase in U.S. equity options.

European derivatives products gained 41.9 percent from December, to 4.7 million contracts a day. European fixed income products in January 2011 reached 2.6 million contracts, down 4.3 percent compared to January 2010, but up 78.0 percent from December 2010.

U.S. cash equities volume in January was up 18.2 percent compared to December.

U.S. equity options saw average daily volume of 4.4 million contracts in January 2011 up 3.0 percent from a year ago and up 29.5 percent from December.