Equifax Inc (EFX) Historical Volatility

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

Equifax Inc. provides information solutions and human resources business process automation outsourcing services for businesses, governments, and consumers. The company operates through three segments: Workforce Solutions, U.S. Information Solutions (USIS), and International. The Workforce Solutions segment offers employment, income, criminal history, and social security number verification services, as well as payroll-based transaction, employment tax management, and identity theft protection products. The USIS segment provides consumer and commercial information services, such as credit information and credit scoring, credit modeling and portfolio analytics, locate, fraud detection and prevention, identity verification, and other consulting; mortgage services; financial marketing services; identity management services; credit monitoring products; and online information, decisioning technology solutions, as well as portfolio management, mortgage reporting, and consumer credit information services.

The International segment offers information service products, which include consumer and commercial services, such as credit and financial information, and credit scoring and modeling; and credit and other marketing products and services, as well as offers information, technology, and other services to support debt collections and recovery management. The company serves customers in financial services, mortgage, employers, consumer, commercial, telecommunication, retail, automotive, utility, brokerage, healthcare, and insurance industries, as well as state, federal, and local governments. It operates in the United States, Canada, Australia, New Zealand, India, the United Kingdom, Spain, Portugal, Argentina, Chile, Costa Rica, Ecuador, El Salvador, Honduras, Mexico, Paraguay, Peru, Uruguay, Brazil, the Republic of Ireland, Russia, Cambodia, Malaysia, Singapore, and the United Arab Emirates. The company was founded in 1899 and is headquartered in Atlanta, Georgia.

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