Mirum Pharmaceuticals, Inc. (MIRM) 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.

Mirum Pharmaceuticals, Inc. (MIRM) operates in the Healthcare sector, specifically the Biotechnology industry, with a market capitalization near $5.48B, listed on NASDAQ, employing roughly 334 people, carrying a beta of 0.52 to the broader market. Mirum Pharmaceuticals, Inc. Led by Christopher Peetz, public since 2019-07-18.

Snapshot as of May 15, 2026.

Spot Price
$103.34
ATM IV
44.5%
IV Skew 25Δ
-0.007
IV Rank
23.1%
IV Percentile
37.7%
Term Structure Slope
-0.020

As of May 15, 2026, Mirum Pharmaceuticals, Inc. (MIRM) at-the-money implied volatility is 44.5%. IV rank is 23.1% (where 0% is the 52-week low and 100% is the 52-week high). IV percentile is 37.7%. The 25-delta skew is -0.007: skew is roughly flat across the 25-delta wings. High IV rank typically favors premium-selling strategies; low IV rank favors premium-buying.

MIRM Strategy Selection at Current Volatility Levels

For Mirum Pharmaceuticals, Inc. options at 44.5% ATM IV, low IV rank (23.1%) favors premium-buying or long-vol structures: long calls or puts, debit spreads, calendar spreads, long straddles. The risk: low-rank regimes can persist for months while time decay eats premium-buyers alive. 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.

Learn how volatility skew is reported and how to read the data →

Frequently asked MIRM volatility skew questions

What is the current MIRM ATM implied volatility?
As of May 15, 2026, Mirum Pharmaceuticals, Inc. (MIRM) at-the-money implied volatility is 44.5%. IV rank is 23.1% 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 MIRM IV high or low historically?
IV is subdued relative to its 1-year history, conditions that typically favor premium-buying strategies (long calls, long puts, debit spreads, calendar spreads).
What does MIRM volatility skew tell options traders?
Volatility skew is the pattern by which IV varies across strikes for a given expiration. Mirum Pharmaceuticals, Inc. skew is roughly flat across the 25-delta wings. 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.