Ronin Capital, the Chicago-based proprietary trading, posted strong profits in its European operations in 2011. The news comes at a time when many of its US peers are reviewing their operations in the region.

The group reported that revenues in its European operations increased by over 4% to £76.1m for the year ended December 31, 2011, according to accounts filed with Companies House last week. Overall profits fell marginally to £22.9m, the filings showed.