On October 17, 2023, significant trading activity was reported for Zevra Therapeutics, Inc. (ZVRA), with a total volume of 8,827 contracts traded, equivalent to approximately 882,700 underlying shares. This represents 82.8% of ZVRA’s average daily trading volume over the past month of 1.1 million shares. Notably, 1,087 contracts of the $12 strike put option expiring December 17, 2027, were traded, accounting for about 108,700 underlying shares.
Kodiak Sciences Inc. (KOD) also experienced high trading volume on the same day, with 4,831 contracts traded, representing around 483,100 underlying shares—82.8% of its average daily volume of 583,345 shares. The prominent activity was seen in the $45 strike call option expiring October 16, 2026, with 2,350 contracts traded, reflecting approximately 235,000 underlying shares.
Penumbra Inc. (PEN) recorded a volume of 2,083 contracts, equating to about 208,300 underlying shares, or 81.9% of its average daily volume of 254,230 shares. A significant transaction involved the $300 strike put option expiring January 15, 2027, with 1,992 contracts traded, corresponding to approximately 199,200 underlying shares.
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