Thames River Capital, the London-based asset manager, increased earnings from fees by 44% in the 12 months to March 31 last year, thanks in part to healthy performance from some of its oldest hedge funds.

The firm took £129.7m (€88.2m) in fees across the period, 43.5% higher than the £90.4m it recorded in March 2006, while its operating profit showed a similar proportional increase, from £79.5m to £113.7m, according its most recent accounts filed at the UK's Companies House.