CGI Inc

GIBNYSE · USD
67.77USD0.00 (-0.55%)
1065

CGI Inc (GIB) Historical Volatility

GIB 30-day historical volatility is 28%. This ranks in the 37th percentile of readings over the past year.

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Tracking GIB historical volatility helps you see how much CGI 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, CGI Inc's HV tells you what really happened. Use our scanner to monitor GIB 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 GIB 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing CGI 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.

CGI Inc., together with its subsidiaries, provides information technology (IT) and business process services in Canada; Western, Southern, Central, and Eastern Europe; Australia; Scandinavia; Finland, Poland, and Baltics; the United States; the United Kingdom; and the Asia Pacific. Its services include the management of IT and business outsourcing, systems integration and consulting, and software solutions selling activities. The company also offers application development, integration and maintenance, testing, portfolio management, and modernization services; business consulting; and a suite of business process services designed to address the needs of specific industries, as well as IT infrastructure services.

It serves clients operating in government, banking and capital market, health, utility, communication and media, oil and gas, retail, consumer and services, space, manufacturing, insurance, life sciences, retail and consumer service, and transportation and logistics sectors. The company was formerly known as CGI Group Inc. and changed its name to CGI Inc. in January 2019. CGI Inc. was founded in 1976 and is headquartered in Montreal, Canada.

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 CGI Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where GIB HV is running hot, cold, or in line. Make the GIB 30 day historical volatility — and every other window — work for your edge instead of against it.

IV vs HV
Implied Volatility (IV) vs Historical Volatility (HV) over the past month.

As of September 25, 2026

IV - HV Difference
Difference between IV and HV over time. Positive values indicate IV > HV.

As of September 25, 2026

See how volatility has moved over time

Track GIB historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.

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