Profits in the European division of US-based high-frequency trading firm Getco jumped by 50% to over $100m last year, largely due to a gain booked against an investment, understood to be its stake in trading venue Chi-X Europe.

Getco Europe Ltd reported pre-tax profits of $102.9m for the year ended December 31, 2011, according to accounts filed with Companies House today. This was an increase of 53.8%, or $35.8m, on 2010. Trading revenues fell 3% to $212m over the period.