ST Microelectronics (STM) Historical Volatility

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

STMicroelectronics N.V., together with its subsidiaries, designs, develops, manufactures, and sells semiconductor products in Europe, the Middle East, Africa, the Americas, and the Asia Pacific. The company operates through Automotive and Discrete Group; Analog, MEMS and Sensors Group; and Microcontrollers and Digital ICs Group segments. The Automotive and Discrete Group segment offers automotive integrated circuits (ICs), and discrete and power transistor products. The Analog, MEMS and Sensors Group segment provides industrial application-specific integrated circuits (ASICs) and application-specific standard products (ASSPs); general purpose analog products; custom analog ICs; wireless charging solutions; galvanic isolated gate drivers; low and high voltage amplifiers, comparators, and current-sense amplifiers; MasterGaN, a solution that integrates a silicon driver and GaN power transistors in a single package; wireline and wireless connectivity ICs; touch screen controllers; micro-electro-mechanical systems (MEMS) products, including sensors or actuators; and optical sensing solutions.

The Microcontrollers and Digital ICs Group segment offers general purpose and secure microcontrollers; and radio frequency (RF) products. It also offers application-specific standard products for analog, digital and mixed-signal applications. In addition, the company provides assembly and other services. It sells its products through distributors and retailers, as well as through sales representatives. The company serves automotive, industrial, personal electronics and communications equipment, and computers and peripherals markets. STMicroelectronics N.V. was incorporated in 1987 and is headquartered in Schiphol, the Netherlands.

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