LCH.Clearnet Group said its operating profit increased 81 percent in 2011, to 106.9 million euros. Underlying operating profit was 335.0 million in 2010.

Net revenues increased 16% to 387.2 million euros. That compares to 335.0 million in 2010.

Clearing income was up 16%. Net investment income was up 21%. The company reported “strong volume growth across all key business areas.’’

This year, the clearinghouse group will launch a foreign exchange service and enhance its credit default swap service.

The company also said it closed market positions with a combined notional value of more than 14.7 billion euros in the aftermath of the default of derivatives market participant MF Global. No recourse to the group’s default fund was necessary, it said.

The results are, said chief executive Ian Axe, “testimony to the strong growth in our core exchange clearing business as well as our fast growing over-the-counter business.’’

Tom Steinert-Threlkeld writes for Securities Technology Monitor.

Tom Steinert-Threlkeld is editorial director of the Money Management Group at SourceMedia. He oversees the Web and print operations of Money Management Executive, Mandate Pipeline, and Securities Technology Monitor. He also advises the Web operations of FInancial Planning, On Wall Street and Bank Investment Consultant. He was vice president of the Enterprise Group of Ziff Davis Media, where he founded Baseline magazine and was editor of Interactive Week. He also has extensive background in metropolitan daily news at The Dallas Morning News and the Fort Worth Star-Telegram in Texas. More recently, he served as editorial director of Broadcasting and Cable as well as Multichannel News magazines for Reed Business Information.