Founded in 2000 by Siepman brothers Chris and Gregg, Liquid Capital began as a marketmaker on the London options market, providing liquidity for a range of exchange-traded fixed-income, index and equity options.

The company has grown rapidly and now makes markets in Hong Kong, the US and Australia, as well as in the Square Mile. The Siepmans have also added options broking and quantitative trading operations to their portfolio.

The group has an IT facility in Chengdu, Sichuan province, China. Liquid Capital saw its profits soar to £12.2m on £164.4m turnover in 2008. Chris is group CEO in London, while Gregg heads Liquid Capital Australia. Between them, they have an 85% stake in the £40m operation.