Monday’s total option volume of 62.3 million contracts resulted in net open interest growth of 9.92 million calls and 6.07 million puts. NVIDIA (NVDA), Tesla (TSLA), Pfizer (PFE) and Alphabet Class A (GOOGL) saw the greatest growth. Top five new positions opened include 53k Avantor (AVTR) Dec-25 9 puts, 43k Pfizer (PFE) 11/26 weekly 25.01 puts, 43k Pfizer (PFE) Jan-26 25.01 calls, 43k Pfizer (PFE) Jan-26 25.01 puts and 43k Merck (MRK) Mar-26 110 calls.
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