Notable Monday Option Activity: ZS, GM, HUBS

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Zscaler Inc (ZS), where a total volume of 6,354 contracts has been traded thus far today, a contract volume which is representative of approximately 635,400 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 52.3% of ZS's average daily trading volume over the past month, of 1.2 million shares..