Noteworthy Thursday Option Activity: PLNT, TGTX, ISRG

Among the underlying components of the Russell 3000 index, we saw noteworthy options trading volume today in Planet Fitness Inc (PLNT), where a total of 4,466 contracts have traded so far, representing approximately 446,600 underlying shares. That amounts to about 48% of PLNT's average daily trading volume over the past month of 931,230 shares..