Transocean Ltd (RIG) Historical Volatility

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

Transocean Ltd., together with its subsidiaries, provides offshore contract drilling services for oil and gas wells worldwide. It contracts its mobile offshore drilling rigs, related equipment, and work crews to drill oil and gas wells. As of February 14, 2022, the company had partial ownership interests in and operated a fleet of 37 mobile offshore drilling units, including 27 ultra-deep water and 10 harsh environment floaters. It serves integrated energy companies, government-owned or government-controlled oil companies, and other independent energy companies. The company was founded in 1926 and is based in Steinhausen, Switzerland.

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