Panmure Gordon was among the biggest fallers on the UK stock market on Tuesday after it posted a first-half pre-tax loss, as the City broker's chief executive warned the rest of the year could remain "tricky for everyone" amid persistent market volatility.

Panmure Gordon on September 29 reported a pre-tax loss of £225,000 for the six months to June 30, 2015, compared with a £1.95 million profit for the same period in 2014.