Derivatives trading on Liffe experienced its busiest May ever, leading to a 30% increase in total contracts traded year-to-date compared to the same period in 2007. In May, Liffe traded over 91m futures and options contracts, representing an average daily volume of 4.3m, up 20.8% from a year earlier. B-Clear, Liffe’s wholesale service for OTC trades, set another new monthly trading record, processing over 28m contracts during the month, up 77.7% compared to the same month last year. Year-to-date trading in Liffe’s STIR contracts increased by 42.6%, compared to the same period in 2007. Equity products traded an average daily volume of 2.3m during May 2008, up 33% on the same month in 2007. Average daily volume on NYSE Arca Options increased 30.7% to 1.5m contracts traded each day in May, while total consolidated options volume rose by 24.9% compared to the same month last year. NYSE Arca Options captured...