Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in SanDisk Corp (Symbol: SNDK), where a total volume of 115,973 contracts has been traded thus far today, a contract volume which is representative of approximately 11.6 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 108.8% of SNDK's average daily trading volume over the past month, of 10.7 million shares. Particularly high volume was seen for the $2000 strike call option expiring October 02, 2026 , with 6,718 contracts trading so far today, representing approximately 671,800 underlying shares of SNDK.
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