Fastly Inc (FSLY) Historical Volatility

Tracking FSLY historical volatility helps you see how much Fastly Inc's stock price has actually moved, giving you a baseline for whether option premiums look fair, cheap, or expensive. While implied volatility shows what the market expects, FSLY's HV, also known as realized volatility, shows what actually happened. Use our scanner to monitor FSLY 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 a stock's past returns, typically measured over rolling windows like 10, 20, 30, or 60 days. FSLY's 30 day historical volatility, or FSLY HV, is one of the most widely watched readings because it balances responsiveness with stability. Comparing FSLY's HV to its implied volatility reveals the volatility risk premium. When IV sits well above HV, options are pricing in more movement than the stock has actually delivered, giving option sellers an edge. When HV runs hot relative to IV, options are pricing in less movement than the stock has delivered, and buyers may be underpaying for it.

Fastly, Inc. operates an edge cloud platform for processing, serving, and securing its customer's applications in the United States, the Asia Pacific, Europe, and internationally. The edge cloud is a category of Infrastructure as a Service that enables developers to build, secure, and deliver digital experiences at the edge of the internet. It is a programmable platform designed for web and application delivery. The company offers Compute@Edge; developer hub that includes solution library patterns and recipes, API and language references, change logs, and Fastly Fiddle solutions; device detection and geolocation, edge dictionaries, edge access control lists, and edge authentication services; full site delivery services, such as dynamic site acceleration, origin shield, instant purge, surrogate keys, real-time logging and stats, cloud optimizer, programmatic control, edge databases, content compression, reliability, and modern protocols and performance services; and streaming solutions and services, including live streaming, media shield, and origin connect.