Cisco Systems Inc

CSCONASDAQ · USD
110.07USD0.00 (+0.01%)
699

Cisco Systems Inc (CSCO) Historical Volatility

CSCO 30-day historical volatility is 37%. This ranks in the 65th percentile of readings over the past year.

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

Cisco Systems, Inc. designs, manufactures, and sells Internet Protocol based networking and other products related to the communications and information technology industry in the Americas, Europe, the Middle East, Africa, the Asia Pacific, Japan, and China. The company also offers switching portfolio encompasses campus switching as well as data center switching; enterprise routing portfolio interconnects public and private wireline and mobile networks, delivering highly secure, and reliable connectivity to campus, data center and branch networks; and wireless products include indoor and outdoor wireless coverage designed for seamless roaming use of voice, video, and data applications.

In addition, it provides security, which comprising network security, identity and access management, secure access service edge, and threat intelligence, detection, and response offerings; collaboration products, such as Webex Suite, collaboration devices, contact center, and communication platform as a service; end-to-end collaboration solutions that can be delivered from the cloud, on-premise or within hybrid cloud environments allowing customers to transition their collaboration solutions from on-premise to the cloud; and observability offers network assurance, monitoring and analytics and observability suite. Further, the company offers a range of service and support options for its customers, including technical support and advanced services and advisory services. It serves businesses of various sizes, public institutions, governments, and service providers. The company sells its products and services directly, as well as through systems integrators, service providers, other resellers, and distributors. Cisco Systems, Inc. has strategic alliances with other companies. Cisco Systems, Inc. was incorporated in 1984 and is headquartered in San Jose, California.

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

IV vs HV
Implied Volatility (IV) vs Historical Volatility (HV) over the past month.

As of September 15, 2026

IV - HV Difference
Difference between IV and HV over time. Positive values indicate IV > HV.

As of September 15, 2026

See how volatility has moved over time

Track CSCO historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.

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