Octave Specialty Group Inc (OSG)

Octave Specialty Group, Inc., an insurance holding company, primarily engages in the specialty property and casualty insurance business in the United States and the United Kingdom. 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 property, niche specialty risk, accident and health, miscellaneous specialty, reinsurance, surety, marine and energy, specialty auto, excess and surplus lines commercial package, professional lines, and directors' and officers' insurance. 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 incorporated in 1991 and is headquartered in New York, New York.

Symbol
OSG
Exchange
NYSE
Sector
Financial Services
Industry
Insurance - Specialty
Market cap
$197.18M
52 week range
3.88 - 10.38

Valuation

Share price
$4.15 (close of 2026-09-23)
P/E (TTM)
-1.19x
Price to book
0.24x
Price to free cash flow
-3.17x
Enterprise value
$191.03M
Book value per share
$18.17

Price performance

PeriodChange
1 day-6.11%
5 days-15.99%
1 month-8.79%
3 months-31.29%
6 months-15.31%
Year to date-46.66%
1 year-55.09%
3 years-67.03%
5 years-70.10%
10 years-77.86%
All time-79.25%

Profitability and growth

Return on equity
-31.10%
Return on assets
-11.65%
Net margin
-180.70%
EBITDA margin
-134.81%
Revenue growth
55.81%
Net income growth
53.41%
Free cash flow growth
-6961.29%

Cash flow and balance sheet

Free cash flow yield (TTM)
-31.51%
Net debt to EBITDA
0.07x

Latest reported year

Period end
2025-12-31
Fiscal year
2025
Revenue
$143.38M
EBITDA
$-193.29M
Net income
$-259.09M
Interest expense
$18.64M

Income statement by year

Period endRevenueNet income
2025-12-31$143.38M$-259.09M
2024-12-31$92.02M$-556.09M
2023-12-31$51.28M$4.95M
2022-12-31$30.70M$522.12M
2021-12-31$26.00M$-17.00M
2020-12-31$156.00M$-437.00M
2019-12-31$496.00M$-216.00M
2018-12-31$511.00M$186.00M
2017-12-31$622.00M$-329.00M
2016-12-31$506.77M$74.84M

Margins and returns by year

Period endNet marginReturn on equity
2025-12-31-180.70%-31.10%
2024-12-31-604.29%-55.83%
2023-12-319.65%0.35%
2022-12-311700.99%40.00%
2021-12-31-65.38%-1.55%
2020-12-31-280.13%-38.33%
2019-12-31-43.55%-14.06%
2018-12-3136.40%11.39%
2017-12-31-52.89%-20.00%
2016-12-3114.77%3.78%

Cash and debt by year

Period endCashDebt
2025-12-31$216.53M$117.56M
2024-12-31$157.21M-
2023-12-31$207.85M$508.00M
2022-12-31$513.33M$639.00M
2021-12-31$431.00M$2.23B
2020-12-31$512.00M$2.74B
2019-12-31$3.34B$2.82B
2018-12-31$3.61B$2.93B
2017-12-31$5.93B$991.70M
2012-12-31$43.84M$150.17M

Free cash flow by year

Period endFree cash flowStock-based compensation
2025-12-31$-52.28M$9.71M
2024-12-31$762.00K$9.36M
2023-12-31$200.00M$12.27M
2022-12-31$1.33B$11.23M
2021-12-31$-131.00M$14.00M
2020-12-31$-175.00M$11.00M
2019-12-31$-311.00M$12.00M
2018-12-31$-1.54B$12.00M
2017-12-31$-221.00M$4.00M
2016-12-31$830.31M$5.25M

Dividend history

Most recent payment
2016-03-16
Payment dateDividend per share
2016-03-16$0.08

Investor relations

Next earnings report

Next confirmed report
2026-11-09

Past earnings dates

ReportedFiscal periodEPS estimate
2026-08-06Jun/2026-
2026-05-06--
2026-02-23--
2024-08-05--
2024-05-10--
2024-05-06--
2024-03-11--
2024-03-07--

Filings and sources

Company website
octavegroup.com
SEC filings
10-K, 10-Q and 8-K on EDGAR
Earnings calendar
All upcoming reports

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Price-to-earnings ratio · Discounted cash flow · Free cash flow · Earnings per share · Return on equity · Gross margin vs net margin · Reading a balance sheet · Debt and leverage · Dividend yield · Insider transactions and Form 4 · How to read a stock chart

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