STZ implied volatility
From the closing options book · October 20, 2026 · updated after every close
STZ's at-the-money implied volatility was 25.4% at the October 20, 2026 close. Over the past 89 sessions it ranged from 23.9% to 101.4%, putting today's level at an IV rank of 2 and IV percentile of 2.
STZ at-the-money IV, last 60 sessions
Options were pricing more movement than STZ actually delivered over the last 20 sessions (25.4% implied against 25.3% realized).
IV rank places today's IV between the period's low (0) and high (100); IV percentile is the share of sessions with lower IV. Both use STZ's own closing history.
These are the October 20, 2026 closing numbers. Members see STZ's map move live all session.
Common questions
25.4% at the money at the October 20, 2026 close.
2 over the past 89 sessions (IV percentile 2).
Its IV percentile is 2: low against its own past year.
Compare: implied volatility on other tickers
Measured from the closing options book and rebuilt after every close. Nothing on this page is live. Levels are where dealer hedging is concentrated, not targets or forecasts. Not investment advice.