Union Pacific Corp
Union Pacific Corp (UNP) Historical Volatility
UNP 30-day historical volatility is 19%. This ranks in the 39th percentile of readings over the past year.
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Tracking UNP historical volatility helps you see how much Union Pacific 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, Union Pacific Corp's HV tells you what really happened. Use our scanner to monitor UNP 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 UNP 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Union Pacific 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.
Union Pacific Corporation, through its subsidiary, Union Pacific Railroad Company, operates in the railroad business in the United States. The company offers transportation services for grain and grain products, fertilizers, food and refrigerated products, and coal and renewables to grain processors, animal feeders, ethanol producers, and other agricultural users; petroleum, and liquid petroleum gases; and construction products, industrial chemicals, plastics, forest products, specialized products, metals and ores, soda ash, and sand, as well as finished automobiles, automotive parts, and merchandise in intermodal containers.
As of December 31, 2021, its rail network included 32,452 route miles connecting Pacific Coast and Gulf Coast ports with the Midwest and Eastern United States gateways. The company was founded in 1862 and is headquartered in Omaha, Nebraska.
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 Union Pacific Corp's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where UNP HV is running hot, cold, or in line. Make the UNP 30 day historical volatility — and every other window — work for your edge instead of against it.
As of September 30, 2026
As of September 30, 2026
See how volatility has moved over time
Track UNP historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.
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