S&P Global Inc (SPGI) Historical Volatility

Tracking SPGI historical volatility helps you see how much S&P Global Inc's stock price has actually moved over past periods, giving you a baseline to judge whether current option premiums are fair, cheap, or expensive. While implied volatility tells you what the market expects, S&P Global Inc's HV tells you what really happened. Use our scanner to monitor SPGI 30 day historical volatility alongside longer lookback windows and spot the moments when realized and implied diverge.

Historical volatility is the annualized standard deviation of an underlying's past returns, typically measured over rolling windows like 10, 20, 30, or 60 days. The SPGI 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing S&P Global Inc's HV to its implied volatility reveals the volatility risk premium — when IV sits well above HV, option sellers tend to have an edge; when HV runs hot relative to IV, buyers may be underpaying for movement.

S&P Global Inc., together with its subsidiaries, provides credit ratings, benchmarks, analytics, and workflow solutions in the global capital, commodity, and automotive markets. It operates in six divisions: S&P Global Ratings, S&P Dow Jones Indices, S&P Global Commodity Insights, S&P Global Market Intelligence, S&P Global Mobility, and S&P Global Engineering Solutions. The S&P Global Ratings division operates as an independent provider of credit ratings, research, and analytics, offering investors and other market participants information, ratings, and benchmarks. The S&P Dow Jones Indices division is an index provider that maintains various valuation and index benchmarks for investment advisors, wealth managers, and institutional investors.

The S&P Global Commodity Insights division offers data and insights for global energy and commodity markets and enable its customers to make decisions. The S&P Global Market Intelligence division delivers data and technology solutions for customers to provide insights for making decisions. It offers data and services that bring end-to-end workflow solutions, including capital formation, data and distribution, ESG and sustainability, leveraged loans, private markets, sector coverage, supply chain, and issuer solutions, as well as credit, risk, and regulatory solutions. The S&P Global Mobility division provides insights derived from unmatched automotive data, enabling its customers to anticipate change and make decisions. The S&P Global Engineering Solutions division offers engineering expertise and solutions in industries, such as aerospace and defense, energy, architecture, construction, and transportation. Its solutions empower business and technical leaders to transform workflows and make decisions. S&P Global Inc. was founded in 1860 and is headquartered in New York, New York.

Sizing a long premium trade, modeling a covered call, or hunting volatility arbitrage all come back to one question: how much has the stock actually moved? Our scanner puts S&P Global Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where SPGI HV is running hot, cold, or in line. Make the SPGI 30 day historical volatility — and every other window — work for your edge instead of against it.