Cal-Maine Foods Inc
Cal-Maine Foods Inc (CALM) Historical Volatility
CALM's 30 day historical volatility is 34.36%, in the 75th percentile of readings over the past year. This is a high percentile, meaning Cal-Maine Foods Inc shares have swung far more than usual. CALM's 30 day implied volatility sits at 38.90%, with an IV Rank of 73.81%, leaving IV 4.54 points above historical volatility. This means options are pricing in more movement than the stock has actually delivered, as of Nov 5, 2026.
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Tracking CALM historical volatility helps you see how much Cal-Maine Foods 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, CALM's HV, also known as realized volatility, shows what actually happened. Use our scanner to monitor CALM 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. CALM's 30 day historical volatility, or CALM HV, is one of the most widely watched readings because it balances responsiveness with stability. Comparing CALM'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.
Cal-Maine Foods, Inc., together with its subsidiaries, produces, grades, packages, markets, and distributes shell eggs. The company offers specialty shell eggs, such as nutritionally enhanced, cage free, organic, and brown eggs under the Egg-Land's Best, Land O' Lakes, Farmhouse Eggs, and 4-Grain brand names, as well as under private labels. It sells its products to various customers, including national and regional grocery store chains, club stores, independent supermarkets, foodservice distributors, and egg product consumers primarily in the southwestern, southeastern, mid-western, and mid-Atlantic regions of the United States.
Historical Volatility
Historical movement is elevated versus the past year. The stock has been unusually active.
As of Nov 5, 2026
As of Nov 5, 2026
As of Nov 5, 2026
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