Noteworthy Monday Option Activity: ZS, RDNT, LAW

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 13,355 contracts has been traded thus far today, a contract volume which is representative of approximately 1.3 million underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 83.5% of ZS's average daily trading volume over the past month, of 1.6 million shares..