The London Stock Exchange, which last week had its first serious systems problem in seven years, has highlighted the "quality" of its technology as it reported strong half-year revenue off the back of record trading levels.

LSE's revenue from trading and trade reporting for the six months to the end of September was up 31% to £99.4m (€139.5m), driven by a 77% spike in trading volume and a 48% increase, to £1.1 trillion, in the value of shares traded.