Castle Biosciences Inc. (CSTL) Options Analysis - Options Chain, Volume & Implied Volatility - Stocknear
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    Castle Biosciences Inc.

    NASDAQ: CSTL · Real-Time Price · USD
    22.75
    -0.19 (-0.83%)
    At close: Sep 11, 2025, 3:59 PM
    22.75
    0.00%
    After-hours: Sep 11, 2025, 04:40 PM EDT

    CSTL Option Overview

    Overview for all option chains of CSTL. As of September 11, 2025, CSTL options have an IV of 231.5% and an IV rank of 178.71%. The volume is 209 contracts, which is 237.5% of average daily volume of 88 contracts. The volume put-call ratio is 0, indicating a bullish sentiment in the market.

    Implied Volatility

    Implied Volatility (30d)
    231.5%
    IV Rank
    178.71%
    Historical Volatility
    95.05%
    IV Low
    59.91% on Jan 28, 2025
    IV High
    155.92% on Sep 02, 2025

    Open Interest (OI)

    Today's Open Interest
    1,970
    Put-Call Ratio
    0.11
    Put Open Interest
    203
    Call Open Interest
    1,767
    Open Interest Avg (30-day)
    1,412
    Today vs Open Interest Avg (30-day)
    139.52%

    Option Volume

    Today's Volume
    209
    Put-Call Ratio
    0
    Put Volume
    1
    Call Volume
    208
    Volume Avg (30-day)
    88
    Today vs Volume Avg (30-day)
    237.5%

    Option Chain Statistics

    This table provides a comprehensive overview of all CSTL 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
    Sep 19, 2025 0 0 0 277 44 0.16 231.5% 20
    Oct 17, 2025 207 0 0 837 130 0.16 104.44% 17.5
    Dec 19, 2025 0 0 0 0 0 0 27.6% 350
    Jan 16, 2026 1 1 1 110 23 0.21 67.92% 15
    Apr 17, 2026 0 0 0 543 6 0.01 54.85% 22.5

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