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.

Ticker
OSG
Exchange
NYSE
Sector
Financial Services
Industry
Insurance - Specialty
Market cap
$224.64M
52-week range
$3.88 - $10.38

Valuation

Share price
$4.99 (close of Nov 6, 2026)
P/E (TTM)
-1.36x
Price to book
0.27x
Price to free cash flow
-3.62x
Enterprise value
$218.49M
Book value per share
$18.17

Price performance

PeriodChange
1 day-2.92%
5 days-0.99%
1 month+8.01%
3 months-11.84%
6 months+18.25%
Year to date-35.86%
1 year-39.00%
3 years-60.08%
5 years-70.70%
10 years-74.71%
All time-75.05%

Short interest

As of
Oct 15, 2026
Short % of float
3.21%
Shares short
1.36M
Days to cover
2.35
Change since prior report
-3.32%
Source
FINRA consolidated short interest

Profitability and growth

Return on equity
-31.10%
Return on assets
-11.65%
Net margin
-103.13%
Revenue growth
6.53%

Cash flow and balance sheet

Free cash flow yield (TTM)
-27.66%
Net debt to EBITDA
0.07x

Latest reported year

Period end
Dec 31, 2025
Fiscal year
2025
Revenue
$251.22M
Net income
-$259.09M
Interest expense
$18.64M

Income statement by year

Period endRevenueNet income
2025-12-31$251.22M-$259.09M
2024-12-31$235.81M-$556.09M
2023-12-31$124.73M$4.95M
2022-12-31-$522.12M
2021-12-31$282.00M-$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
2025-12-31-103.13%-31.10%
2024-12-31-235.82%-55.83%
2023-12-313.97%0.35%
2022-12-31-40.00%
2021-12-31-6.03%-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

Investor relations

Next earnings report

Next confirmed report
Nov 9, 2026
Consensus EPS estimate
$-0.06

Past earnings dates

ReportedFiscal periodEPS estimate
2026-08-06Jun 2026-$0.01
2026-05-06Mar 2026$0.02
2026-02-23Dec 2025-$0.21

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 · Short interest · 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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