Noteworthy Wednesday Option Activity: ZG, HD, SNA

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in Zillow Group Inc (ZG), where a total volume of 1,594 contracts has been traded thus far today, a contract volume which is representative of approximately 159,400 underlying shares (given that every 1 contract represents 100 underlying shares). That number works out to 41.2% of ZG's average daily trading volume over the past month, of 386,755 shares..