Octave Specialty Group, Inc.
Octave Specialty Group, Inc. (NYSE: OSG) operates specialty insurance distribution and specialty property and casualty insurance businesses. Its Insurance Distribution segment comprises managing general agents and underwriters, a broker, and related businesses that place and administer coverage across lines including… From the company’s description.
Over the twelve months to Jun 30, 2026, Octave Specialty Group, Inc. reported revenue of $320.67M, up 118.8% from a year earlier. In fiscal 2025, it reported revenue of $251.22M, up 6.5% from fiscal 2024, and a net loss of $95.80M.
Margins and return on equity change in ; everything else in percent. Fewer shares and less debt are shown plainly, not as bad news — it depends what you make of buybacks. Dotted labels explain each measure. is shown separately from the annual figures.
What Octave Specialty Group, Inc. does
In the company’s own words
Octave Specialty Group, Inc. (NYSE: OSG) operates specialty insurance distribution and specialty property and casualty insurance businesses. Its Insurance Distribution segment comprises managing general agents and underwriters, a broker, and related businesses that place and administer coverage across lines including accident and health, property, commercial auto, marine and energy, surety, professional liability, and reinsurance. These businesses earn commissions from insurers and serve agents, policyholders, and insurance carriers. Its Specialty Property and Casualty Insurance segment, operating through Everspan, provides admitted and excess-and-surplus insurance capacity, primarily for commercial and personal liability risks distributed through program administrators and managing general agents; it also selectively assumes reinsurance. Everspan includes five insurance carriers and reported $360.4 million in gross written premiums in 2025. Insurance Distribution placed approximately $951.8 million in premiums in 2025. The company sold its legacy financial guarantee business in September 2025 and changed its name from Ambac Financial Group in the fourth quarter of that year. Its website is www.octavegroup.com.
Company details
- Sector
- Financials
- Industry (SIC)
- Insurance
- Headquarters
- NEW YORK, NY
- Fiscal year end
- December
- CIK
- 874501
- SIC
- 6351
Financial performance, year by year
Fiscal 2011–2025 · USDThe full income statement, balance sheet and cash flow for each of these years — every figure traceable to its filing — is on the Financials tab with a free account.
Who owns Octave Specialty Group, Inc. — and what changed
Funds as of 2026Q2 · superinvestors as of 2026-06-30
Largest fund holders · Octave Specialty Group, Inc.’s weight in each
Fund ownership is a floor, not a census — pensions, insurers and people holding shares directly are not visible here.
Octave Specialty Group, Inc.’s bonds, as funds hold them
Funds report holding 2 issues of Octave Specialty Group, Inc.’s debt, $149.71M at market value — what funds hold, not the company’s total debt. Weighted-average coupon 4.71%, maturing 2099 to 2099.
Fund ownership counts N-PORT filers only, so it is a floor rather than a census — pensions, insurers and direct holders are not visible here, and the remainder is not “held by individuals”.
Every fund and institutional holder, quarter by quarter, is on the Ownership tab with a free account.
Recent filings
All filings →Each filing opens into its own statements and disclosures here.
Put this business in context.
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