Credit specialists at Citi are considering launching the first derivatives intended to pay out in the event of a financial crisis. The firm has drawn up plans for a tradable liquidity index, known as the CLX, on which products could be structured that allow buyers to hedge a spike in funding costs.

Like the untraded US rates liquidity index (USRLI), the CLX is constructed as a sum of the Sharpe ratio – deviations from the mean divided by volatility – of various market factors, such as equity