A row has broken out between the UK markets regulator, the Securities and Futures Authority, and lawyers representing Sussex Futures, a futures trading arcade publicly disciplined by the SFA.

The SFA said on Tuesday that it had fined John Sussex, managing director of Sussex Futures, and David Stuart, the company's senior executive officer, £5,500 (€8,709) and £2,750 respectively, after a risk management failure by a rogue trader led to losses of £743,000. The SFA accused the UK company and its managers of failing to monitor the trader's positions.