Octave Specialty Group, Inc. (OSG)

Octave Specialty Group, Inc. (OSG) is an Insurance - Specialty company in the Financial Services sector listed on the NYSE.

As of Oct 23, 2026: market cap $208M; returns 1 day +0.6%, 1 week +1.9%.

Octave Specialty Group, Inc. (formerly Ambac Financial Group, Inc.) is a specialty insurance and financial services holding company that completed a significant strategic pivot in late 2025.

Groups OSG belongs to

• Financials Sector
• Insurance
• Strategic Pivot
• Property & Casualty Insurance
• Excess & Surplus Lines
• Distribution
• B2B Services
• Fee-Based Revenue

OSG financial model: income statement, cash flow and balance sheet