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Merck & Co Inc (MRK) has reported significant trading activity, with a total volume of 48,565 contracts traded today, equating to approximately 4.9 million underlying shares. This volume represents 47.1% of its average daily trading volume of 10.3 million shares over the past month. Notably, the $93 strike call option expiring on November 14, 2025, has seen 5,596 contracts traded, corresponding to about 559,600 shares of MRK.
Snowflake Inc (SNOW) recorded options trading volume of 18,991 contracts today, or around 1.9 million underlying shares, which is 46.1% of its monthly average of 4.1 million shares. The most active option was the $260 strike put option expiring on December 19, 2025, with 1,989 contracts traded, representing approximately 198,900 shares.
Blackrock Inc (BLK) experienced a trading volume of 3,281 contracts today, translating to around 328,100 underlying shares, or 45.1% of its average daily volume of 726,985 shares. The $1000 strike call option expiring on December 19, 2025, led the transaction list with 556 contracts traded, equating to about 55,600 shares.
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