是评估日交易者交易系统和执行力的日子。仔细复盘一下，很多股和大盘走的很有章法，一点都不凌乱。
Contracts tied to nearly $7 trillion in stocks, ETFs and indexes were set to expire during the latest “triple witching” options-expiration event — potentially the largest sum on record, according to data from SpotGamma.
