Annexon, Inc. (ANNX) Volatility Skew
Implied volatility skew shows how IV varies across strike prices for a given expiration. Steeper skews indicate higher demand for downside protection relative to upside speculation.
Annexon, Inc. (ANNX) operates in the Healthcare sector, specifically the Biotechnology industry, with a market capitalization near $651.8M, listed on NASDAQ, employing roughly 106 people, carrying a beta of 1.22 to the broader market. Annexon, Inc. Led by Douglas E. Love, public since 2020-07-24.
Snapshot as of May 15, 2026.
- Spot Price
- $5.21
- ATM IV
- 109.9%
- IV Skew 25Δ
- -2.330
- IV Rank
- 31.1%
- IV Percentile
- 57.5%
- Term Structure Slope
- -0.289
As of May 15, 2026, Annexon, Inc. (ANNX) at-the-money implied volatility is 109.9%. IV rank is 31.1% (where 0% is the 52-week low and 100% is the 52-week high). IV percentile is 57.5%. The 25-delta skew is -2.330: puts carry meaningful premium over calls, a classic equity downside-protection skew. High IV rank typically favors premium-selling strategies; low IV rank favors premium-buying.
ANNX Strategy Selection at Current Volatility Levels
For Annexon, Inc. options at 109.9% ATM IV, mid-range IV rank (31.1%) is the regime where directional conviction matters more than vol-regime positioning; strategy choice should follow the event calendar and the dealer-positioning view rather than IV rank alone. The 25-delta skew is meaningfully put-skewed, so put-credit spreads capture more premium for the same width than call-credit spreads. Pair the vol-rank read with the dealer-gamma view and the upcoming-events calendar to confirm the strategy fits both the structural regime and the path-dependent risk. The variance risk premium - the persistent gap between implied and subsequently realized vol - is positive in equity markets on average; high IV rank typically reflects a stretch where the premium is wider than usual.
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Frequently asked ANNX volatility skew questions
- What is the current ANNX ATM implied volatility?
- As of May 15, 2026, Annexon, Inc. (ANNX) at-the-money implied volatility is 109.9%. IV rank is 31.1% on a 0-100% scale anchored to the 1-year IV range. ATM IV is the volatility input that makes a Black-Scholes-equivalent model reproduce the listed at-the-money option prices.
- Is ANNX IV high or low historically?
- IV is near its 1-year median, a regime where strategy choice depends on directional conviction and event calendar rather than vol regime.
- What does ANNX volatility skew tell options traders?
- Volatility skew is the pattern by which IV varies across strikes for a given expiration. Annexon, Inc. carries the typical equity downside-protection skew: 25-delta puts price meaningfully richer than 25-delta calls. Skew matters for risk-defined strategy selection: when downside puts are rich, put-credit spreads capture more premium; when upside calls are rich, call-credit spreads or covered-call writes harvest more.