Noteworthy Friday Option Activity: CSII, ISRG, REGN
January 24, 2020 at 15:17 PM EST
Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Cardiovascular Systems, Inc (CSII), where a total of 10,696 contracts have traded so far, representing approximately 1.1 million underlying shares. That amounts to about 415.7% of CSII's average daily trading volume over the past month of 257,300 shares..