Thomson-Reuters Corp (TRI) Historical Volatility

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

Thomson Reuters Corporation provides business information services in the Americas, Europe, the Middle East, Africa, and the Asia Pacific. It operates in five segments: Legal Professionals, Corporates, Tax & Accounting Professionals, Reuters News, and Global Print. The Legal Professionals segment offers research and workflow products focusing on legal research and integrated legal workflow solutions that combine content, tools, and analytics to law firms and governments. The Corporates segment provides a suite of content-enabled technology solutions for legal, tax, regulatory, compliance, and IT professionals.

The Tax & Accounting Professionals segment offers research and workflow products focusing on tax offerings and automating tax workflows to tax, accounting, and audit professionals in accounting firms. The Reuters News segment provides business, financial, and international news to media organizations, professional, and news consumers through news agency and industry events. The Global Print segment offers legal and tax information primarily in print format to legal and tax professionals, governments, law schools, and corporations. The company was formerly known as The Thomson Corporation and changed its name to Thomson Reuters Corporation in April 2008. The company was founded in 1851 and is headquartered in Toronto, Canada. Thomson Reuters Corporation is a subsidiary of The Woodbridge Company Limited.

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