GTLB implied volatility
From the closing options book · October 20, 2026 · updated after every close
GTLB's at-the-money implied volatility was 58.9% at the October 20, 2026 close. Over the past 68 sessions it ranged from 48.8% to 207.3%, putting today's level at an IV rank of 6 and IV percentile of 32.
GTLB at-the-money IV, last 60 sessions
Options were pricing more movement than GTLB actually delivered over the last 20 sessions (58.9% implied against 52.0% 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 GTLB's own closing history.
These are the October 20, 2026 closing numbers. Members see GTLB's map move live all session.
Common questions
58.9% at the money at the October 20, 2026 close.
6 over the past 68 sessions (IV percentile 32).
Its IV percentile is 32: middling 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.