KBR Inc
KBR Inc (KBR) Historical Volatility
KBR 30-day historical volatility is 21%. This ranks in the 1th percentile of readings over the past year.
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Tracking KBR historical volatility helps you see how much KBR 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, KBR Inc's HV tells you what really happened. Use our scanner to monitor KBR 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 KBR 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing KBR 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.
KBR, Inc. provides scientific, technology, and engineering solutions to governments and commercial customers worldwide. The company operates through Government Solutions and Sustainable Technology Solutions segments. The Government Solutions segment offers life-cycle support solutions to defense, intelligence, space, aviation, and other programs and missions for military and other government agencies in the United States, the United Kingdom, and Australia. Its services cover research and development, advanced prototyping, acquisition support, systems engineering, cyber analytics, space domain awareness, test and evaluation, systems integration and program management, global supply chain management, and operations readiness and support, as well as command, control, communications, computers, intelligence, surveillance, and reconnaissance services.
This segment also provides various professional advisory services to deliver high-end systems engineering, systems assurance, and technology to customers across the defense, energy, and critical infrastructure sectors. The Sustainable Technology Solutions segment holds a portfolio of approximately 70 proprietary process technologies for ammonia/syngas/fertilizers, chemical/petrochemicals, clean refining, and circular process/circular economy solutions. This segment also includes advisory and consulting practices that focuses on energy transition and net-zero carbon emission consulting; and provides engineering, design, and professional services, as well as industrial solutions through KBR INSITE, a proprietary, digital, and cloud-based operations and maintenance platform that identifies opportunities for clients to achieve sustainable improvements in production, reliability, environment impact, energy efficiency, and profitability. KBR, Inc. was founded in 1998 and is headquartered in Houston, 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 KBR Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where KBR HV is running hot, cold, or in line. Make the KBR 30 day historical volatility — and every other window — work for your edge instead of against it.
As of September 24, 2026
As of September 24, 2026
See how volatility has moved over time
Track KBR historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.
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