Among the notable options trading activities, Vistra Corp (VST) reported a volume of 29,848 contracts today, translating to approximately 3 million underlying shares, which is 71.1% of its average daily trading volume of 4.2 million shares over the past month. High interest was noted in the $190 strike call option expiring May 15, 2026, with 5,029 contracts traded.
SanDisk Corp (SNDK) also experienced significant options trading, with 129,717 contracts exchanged, equating to around 13 million underlying shares—70% of its average daily volume of 18.5 million shares. The $900 strike call option expiring April 10, 2026, saw 4,009 contracts traded.
Rockwell Automation, Inc. (ROK) had an options trading volume of 5,575 contracts, or about 557,500 underlying shares, which is 62.4% of its average daily trading volume of 892,900 shares. The $380 strike put option expiring May 15, 2026, recorded 1,358 contracts traded today.
