Among the S&P 500 index components on [October 5, 2023](https://www.pivotandflowdaily.com), Costco Wholesale Corp (COST) reported significant options trading activity, with 13,487 contracts exchanged, equating to about 1.3 million underlying shares. This represents 75.2% of COST’s average daily trading volume of 1.8 million shares. Notably, the $118.0 strike call option, expiring April 24, 2026, saw heightened interest with 953 contracts traded.
W.W. Grainger Inc. (GWW) also showed substantial options volume, totaling 1,141 contracts, or roughly 114,100 underlying shares, making up 51.2% of its average monthly trading volume of 223,005 shares. The $126.0 strike put option set to expire on January 15, 2027, attracted particular attention with 549 contracts traded.
EQT Corp (EQT) experienced extensive options trading, with 39,427 contracts, representing approximately 3.9 million underlying shares, or 49.7% of its average daily trading volume of 7.9 million shares. The $51 strike put option expiring May 29, 2026, was particularly active, with 26,502 contracts traded.
