expiration effect

• 到期效应

expiration effect的用法和样例：

例句

1. To avoid the expiration-day effects of derivatives overlapping with monthly effect of cash market, the optimal last trading day of index futures is best set in mid-month.
   为了防止期货到期日效应与现货月效应及假日效应等重叠，增大现货市场的波动性，本文建议将股指期货合约最后交易日设在月中。