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    Merck & Co. Inc.

    NYSE: MRK · Real-Time Price · USD
    84.17
    1.41 (1.70%)
    At close: Aug 15, 2025, 12:46 PM

    MRK Option Overview

    Overview for all option chains of MRK. As of August 15, 2025, MRK options have an IV of 34.21% and an IV rank of 24.01%. The volume is 18,499 contracts, which is 75.92% of average daily volume of 24,365 contracts. The volume put-call ratio is 0.5, indicating a bullish sentiment in the market.

    Implied Volatility

    Implied Volatility (30d)
    34.21%
    IV Rank
    24.01%
    Historical Volatility
    27.38%
    IV Low
    26.52% on Aug 29, 2024
    IV High
    58.55% on Jun 13, 2025

    Open Interest (OI)

    Today's Open Interest
    764,738
    Put-Call Ratio
    0.72
    Put Open Interest
    320,358
    Call Open Interest
    444,380
    Open Interest Avg (30-day)
    667,116
    Today vs Open Interest Avg (30-day)
    114.63%

    Option Volume

    Today's Volume
    18,499
    Put-Call Ratio
    0.5
    Put Volume
    6,135
    Call Volume
    12,364
    Volume Avg (30-day)
    24,365
    Today vs Volume Avg (30-day)
    75.92%

    Option Chain Statistics

    This table provides a comprehensive overview of all MRK options grouped by their expiration dates.

    Expiration Call Vol Put Vol P/C Vol Call OI Put OI P/C OI Implied Volatility Max Pain
    Aug 15, 2025 3,943 1,234 0.31 100,507 56,343 0.56 137.52% 80
    Aug 22, 2025 2,124 1,360 0.64 7,461 9,554 1.28 37.7% 81
    Aug 29, 2025 283 348 1.23 3,472 2,742 0.79 34.21% 80
    Sep 05, 2025 384 392 1.02 11,571 1,949 0.17 31.84% 80
    Sep 12, 2025 513 662 1.29 980 1,075 1.1 29.29% 80
    Sep 19, 2025 1,177 324 0.28 92,179 54,193 0.59 68.03% 80
    Sep 26, 2025 50 59 1.18 727 205 0.28 30.59% 79
    Oct 17, 2025 857 410 0.48 26,358 28,879 1.1 43.28% 80
    Nov 21, 2025 152 98 0.64 9,937 16,692 1.68 34.3% 80
    Dec 19, 2025 895 65 0.07 43,223 24,309 0.56 43.57% 85
    Jan 16, 2026 1,087 639 0.59 49,470 46,303 0.94 38.49% 90
    Mar 20, 2026 384 460 1.2 15,334 22,711 1.48 32.13% 80
    Apr 17, 2026 0 9 0 0 0 0 31.58% 40
    Jun 18, 2026 209 10 0.05 16,658 20,544 1.23 30.49% 80
    Sep 18, 2026 188 36 0.19 3,866 2,932 0.76 29.52% 80
    Dec 18, 2026 4 4 1 8,121 5,410 0.67 30.04% 90
    Jan 15, 2027 33 2 0.06 31,198 15,582 0.5 29.3% 90
    Jun 17, 2027 15 2 0.13 16,244 3,284 0.2 29.33% 80
    Dec 17, 2027 66 21 0.32 7,074 7,651 1.08 30.09% 80

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