Arm Holdings Plc ADR (ARM) Historical Volatility

Tracking ARM historical volatility helps you see how much Arm Holdings Plc ADR'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, ARM's HV, also known as realized volatility, shows what actually happened. Use our scanner to monitor ARM 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. ARM's 30 day historical volatility, or ARM HV, is one of the most widely watched readings because it balances responsiveness with stability. Comparing ARM'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.

Arm Holdings plc architects, develops, and licenses central processing unit products and related technologies for semiconductor companies and original equipment manufacturers rely on to develop products. It offers microprocessors, systems intellectual property (IPs), graphics processing units, physical IP and associated systems IPs, software, tools, and other related services. Its products are used in various markets, such as automotive, computing infrastructure, consumer technologies, and Internet of things. The company operates in the United States, the People's Republic of China, Taiwan, South Korea, and internationally.