AECOM (ACM) Historical Volatility

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

AECOM, together with its subsidiaries, provides professional infrastructure consulting services for governments, businesses, and organizations in the Americas, Europe, the Middle East, Africa, and the Asia Pacific. It operates through three segments: Americas, International, and AECOM Capital. The company offers planning, consulting, architectural and engineering design, construction and program management, and investment and development services to commercial and government clients. It also invests in and develops real estate projects. In addition, the company provides construction services, including building construction and energy, and infrastructure and industrial construction.

It serves transportation, water, government, facilities, environmental, and energy sectors. The company was formerly known as AECOM Technology Corporation and changed its name to AECOM in January 2015. AECOM was incorporated in 1980 and is headquartered Dallas, Texas.

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