GERDAU S.A. (GGB) Implied Volatility
GERDAU S.A. (GGB) options trade at a 30-day at-the-money implied volatility of 434.6%, an IV rank of 91 out of 100 over the past year. This page breaks down GGB's implied volatility in plain English: where it sits versus its own history, how it compares with realized movement, and what the term structure and skew are saying.
Data as of Jul 10, 2026, 8:00 PM ET · OPRA data 15 minutes delayed · For information only — not investment advice.
Implied Volatility & Expected Move
GGB 30-day at-the-money implied volatility, past year.
| ATM IV — front expiration | 434.6% |
| ATM IV — 2 month | 38.5% |
| ATM IV — 3 month | 44.6% |
| IV rank (1 year) | 91 / 100 |
| IV percentile (1 year) | 94% |
| Expected move (front expiration) | ±$2.72 (±60.2%) |
| Historical volatility — 10 day | 31.6% |
| Historical volatility — 21 day | 40.0% |
| Historical volatility — 30 day | 36.9% |
| Historical volatility — 60 day | 36.3% |
| IV / HV ratio | 11.77 |
| Term slope (front − 3M) | +390.0 pts |
An IV rank of 91 places current implied volatility near the top of its 52-week range. With an IV/HV ratio of 11.77, options currently price in more movement than the stock has recently realized. The term structure is in backwardation — front-month IV exceeds 3-month IV, a pattern often seen around near-term events.
GGB IV Rank History
GGB IV rank (0–100), past year.
IV rank has risen from 17 in Feb '26 to 91 today. An IV percentile of 94% means implied volatility was lower than today on 94% of trading days in the past year.
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GGB Options FAQ
What is the implied volatility of GGB options?
GGB options trade at a 30-day at-the-money implied volatility of 434.6% as of Jul 10, 2026. That is an IV rank of 91 out of 100, meaning implied volatility is elevated relative to its own 52-week range.
Is GGB implied volatility high or low right now?
By its own 52-week standards, GGB implied volatility is currently high: IV rank is 91 out of 100 as of Jul 10, 2026. Compared with realized movement, the IV/HV ratio of 11.77 shows options pricing more movement than the stock has recently delivered.
What move do GGB options imply before the next expiration?
Front-expiration GGB options imply a one-standard-deviation move of ±$2.72 (±60.2%) as of Jul 10, 2026, derived from at-the-money option prices.
What is the difference between GGB's IV rank and IV percentile?
IV rank (currently 91) measures where today's implied volatility sits between its 52-week low and high. IV percentile (currently 94%) counts the share of trading days in the past year with lower implied volatility than today. Percentile is less distorted by one-off volatility spikes.
Methodology. IV rank compares the current 30-day at-the-money implied volatility with its highest and lowest values over the past 52 weeks. Max pain is the strike that minimizes the total payout to option holders at expiration. The call and put walls are the strikes carrying the largest call and put open interest across all expirations. Net gamma exposure (GEX) is measured from the dealer perspective. All statistics are derived from delayed OPRA options data.
Options trading involves significant risk, and losses can exceed your initial investment. Always consult a licensed financial professional before making investment decisions. OptiView does not provide financial advice; all figures on this page are descriptive statistics, not recommendations.