Notable Tuesday Option Activity: SPSC, VLO, CROX

Looking at options trading activity among components of the Russell 3000 index, there is noteworthy activity today in SPS Commerce, Inc. (SPSC), where a total volume of 1,068 contracts has been traded thus far today, a contract volume which is representative of approximately 106,800 underlying shares (given that every 1 contract represents 100 underlying shares)..