Cloudflare Inc
Cloudflare Inc (NET) Historical Volatility
NET 30-day historical volatility is 68%. This ranks in the 69th percentile of readings over the past year.
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Tracking NET historical volatility helps you see how much Cloudflare 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, Cloudflare Inc's HV tells you what really happened. Use our scanner to monitor NET 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 NET 30 day historical volatility is one of the most widely watched readings because it balances responsiveness with stability. Comparing Cloudflare 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.
CloudFlare, Inc. operates as a cloud services provider that delivers a range of services to businesses worldwide. The company offers an integrated cloud-based security solution to secure a range of combination of platforms, including public cloud, private cloud, on-premise, software-as-a-service applications, and IoT devices. Its security products comprise cloud firewall, bot management, distributed denial of service, IoT, SSL/TLS, secure origin connection, and rate limiting products. The company also offers performance solutions, which include content delivery and intelligent routing, as well as content, mobile, and image optimization solutions.
In addition, it provides reliability solutions comprising load balancing, anycast network, virtual backbone, DNS, DNS resolver, online, and virtual waiting room solutions. Further, the company offers Cloudflare internal infrastructure solutions, including on-ramps, which connect users, devices, or locations to its network; and filters, which are the products that protect, inspect, and privilege data. Additionally, it provides developer-based solutions, such as serverless computing/programmable network, website development, domain registration, Cloudflare apps, analytics, and data localization management; Consumer DNS Resolver, a consumer app to browse the Internet; and Consumer VPN for consumers to secure and accelerate traffic on mobile devices. The company serves customers in the technology, healthcare, financial services, consumer and retail, and non-profit industries, as well as government. CloudFlare, Inc. was incorporated in 2009 and is headquartered in San Francisco, 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 Cloudflare Inc's historical volatility side-by-side with implied readings across every lookback window, so you can see exactly where NET HV is running hot, cold, or in line. Make the NET 30 day historical volatility — and every other window — work for your edge instead of against it.
As of September 25, 2026
As of September 25, 2026
See how volatility has moved over time
Track NET historical volatility, spot where IV and realized volatility diverge, and find options that are priced in your favor right now.
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