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Octave Specialty Group, Inc. (OSG) fundamentals score

Octave Specialty Group, Inc. ("OSG"), headquartered in New York City, is a financial services holding company incorporated in the State of Delaware on April 29, 1991 and was formerly known as Ambac Financial Group, Inc. ("AFG"). In the fourth quarter of 2025, AFG changed its name and rebranded as OSG in connection with the sale of its Legacy Financial Guarantee business.

Insurance, Diversified · Financial Services · Listed on NYSE

Overall: 7.3 out of 10, Good long-term fundamentals

  • Growth: 7.1/10
  • Profitability: 4.0/10
  • Financial health: 9.5/10
  • Earnings quality: 10.0/10
  • Valuation: 7.5/10

Scores are calculated from Octave Specialty Group, Inc.’s SEC filings, using the 12 months through 2026-06. Compare it with past big winners, check its flags, and see today’s price against its fundamentals in the full scorecard.

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