On October 4, notable options trading activity was observed in several companies within the Russell 3000 index. Inspire Medical Systems Inc (INSP) recorded a trading volume of 2,937 contracts, equating to approximately 293,700 underlying shares, which is about 48.6% of its average daily volume of 603,905 shares. The most significant trading was for the $120 strike put option expiring on August 15, 2025, with 1,831 contracts traded, representing around 183,100 shares.
Annaly Capital Management Inc (NLY) saw an even higher options trading volume of 32,302 contracts, amounting to approximately 3.2 million underlying shares, which is 47.4% of its average daily trading volume of 6.8 million shares. The $21.50 strike call option expiring on August 8, 2025, was particularly active, with 21,338 contracts traded, representing about 2.1 million shares.
Idexx Laboratories, Inc. (IDXX) experienced a trading volume of 2,488 contracts, or approximately 248,800 underlying shares, making up 44.7% of its average daily trading volume of 556,605 shares. The $620 strike put option expiring on September 19, 2025, attracted significant interest as well, with 252 contracts traded, representing around 25,200 shares.
