The turnover of Hang Seng Index Options also decreased to 2 892 contracts a day in 1999, compared with 3 234 in 1998, representing a decrease of 11 per cent.

• 恒生指数期权平均每日交投量，亦由一九九八年的3234张跌至一九九九年的2892张，跌幅为11%25。