S&P Global Inc. (SPGI) Implied Volatility
S&P Global Inc. (SPGI) options trade at a 30-day at-the-money implied volatility of 22.0%, an IV rank of 20 out of 100 over the past year. This page breaks down SPGI'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 Aug 24, 2026, 3:55 PM ET · OPRA data 15 minutes delayed · For information only — not investment advice.
Implied Volatility & Expected Move
SPGI 30-day at-the-money implied volatility, past year.
| ATM IV — front expiration | 22.0% |
| ATM IV — 2 month | 24.7% |
| ATM IV — 3 month | 34.3% |
| IV rank (1 year) | 20 / 100 |
| IV percentile (1 year) | 1% |
| Expected move (front expiration) | ±$16.59 (±3.8%) |
| Historical volatility — 10 day | 24.7% |
| Historical volatility — 21 day | 27.1% |
| Historical volatility — 30 day | 28.6% |
| Historical volatility — 60 day | 29.7% |
| IV / HV ratio | 0.77 |
| Term slope (front − 3M) | -12.3 pts |
| 25Δ skew (front) | +5.5 pts |
An IV rank of 20 places current implied volatility in the lower part of its 52-week range. With an IV/HV ratio of 0.77, options currently price in less movement than the stock has recently realized. The term structure is in contango — front-month IV sits below 3-month IV, the typical shape in calm markets.
SPGI IV Rank History
SPGI IV rank (0–100), past year.
IV rank has fallen from 67 in Feb '26 to 20 today. An IV percentile of 1% means implied volatility was lower than today on 1% of trading days in the past year.
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SPGI Options FAQ
What is the implied volatility of SPGI options?
SPGI options trade at a 30-day at-the-money implied volatility of 22.0% as of Aug 24, 2026. That is an IV rank of 20 out of 100, meaning implied volatility is subdued relative to its own 52-week range.
Is SPGI implied volatility high or low right now?
By its own 52-week standards, SPGI implied volatility is currently low: IV rank is 20 out of 100 as of Aug 24, 2026. Compared with realized movement, the IV/HV ratio of 0.77 shows options pricing less movement than the stock has recently delivered.
What move do SPGI options imply before the next expiration?
Front-expiration SPGI options imply a one-standard-deviation move of ±$16.59 (±3.8%) as of Aug 24, 2026, derived from at-the-money option prices.
What is the difference between SPGI's IV rank and IV percentile?
IV rank (currently 20) measures where today's implied volatility sits between its 52-week low and high. IV percentile (currently 1%) 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.