Octave Specialty Group Inc (OSG) Historical Volatility

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

Octave Specialty Group, Inc. operates as a financial services holding company. It operates in two segments, Specialty Property and Casualty Insurance; and Insurance Distribution. The Specialty Property and Casualty Insurance segment provides specialty property and casualty program insurance with a focus on commercial and personal liability risks. The Insurance Distribution segment offers specialty property and casualty insurance distribution services, which include managing general agents, underwriters, insurance broker, and other distribution and underwriting businesses. The company was formerly known as Ambac Financial Group, Inc.

and changed its name to Octave Specialty Group, Inc. in November 2025. The company was founded in 1971 and is headquartered in New York, New York.

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