The attraction of moving into futures, options and swaps is that derivatives markets tend to command higher valuations than those that trade only shares.
向期货、期权和互换转换的吸引力在于，相对于普通的股票交易，衍生品市场越来越赢得更高的估值。
2
Instead, they buy futures and options which they settle with a cash payment when they fall due.
相反，他们购买的是那些到期时以现金支付的期货及期权。
3
Chicago emerged as a global centre for futures and options because of its proximity to America's agricultural belt.