Custom Truck One Source Inc
Custom Truck One Source Inc (CTOS) Historical Volatility
CTOS's 30 day historical volatility is 64.71%, in the 100th percentile of readings over the past year. This is a high percentile, meaning Custom Truck One Source Inc shares have swung far more than usual. CTOS's 30 day implied volatility sits at 91.22%, with an IV Rank of 62.30%, leaving IV 26.51 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 CTOS historical volatility helps you see how much Custom Truck One Source 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, CTOS's HV, also known as realized volatility, shows what actually happened. Use our scanner to monitor CTOS 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. CTOS's 30 day historical volatility, or CTOS HV, is one of the most widely watched readings because it balances responsiveness with stability. Comparing CTOS'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.
Custom Truck One Source, Inc. provides specialty equipment rental services to the electric utility transmission and distribution, telecommunications, rail, other infrastructure-related industries in North America. It operates through Equipment Rental Solutions, Truck and Equipment Sales, and Aftermarket Parts and Services segments. The Equipment Rental Solutions owns new and used specialty equipment, including truck-mounted aerial lifts, cranes, service trucks, dump trucks, trailers, digger derricks, and other machinery and equipment. The Truck and Equipment Sales segment offers new equipment for sale to be used for end-markets which can be modified to meet customers specific needs.
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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