GNRC implied volatility
From the closing options book · October 20, 2026 · updated after every close
GNRC's at-the-money implied volatility was 65.2% at the October 20, 2026 close. Over the past 77 sessions it ranged from 43.3% to 118.2%, putting today's level at an IV rank of 29 and IV percentile of 69.
GNRC at-the-money IV, last 60 sessions
Options were pricing more movement than GNRC actually delivered over the last 20 sessions (65.2% implied against 47.0% 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 GNRC's own closing history.
These are the October 20, 2026 closing numbers. Members see GNRC's map move live all session.
Common questions
65.2% at the money at the October 20, 2026 close.
29 over the past 77 sessions (IV percentile 69).
Its IV percentile is 69: 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.