Listed

Octave Specialty Group Inc

OSGNYSECIK 874501FinancialsFiscal year ends Dec 31

Latest reported revenue, Q2 FY2026$49.7mRevenue, Q2 FY2026, three months to 2026-06-30$49.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054446.Report this figureThree months to Jun 30, 2026, from the 10-Q filed Aug 6, 2026.

Latest quarter: Q2 FY2026

Three months to Jun 30, 2026, against the same quarter a year earlier.

  • Revenue$49.7mRevenue, Q2 FY2026, three months to 2026-06-30$49.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054446.Report this figure+64.0% on a year earlier
  • Gross marginnot reported (Gross profit not reported)No year-earlier figure to compare
  • Operating marginnot reported (Operating income not reported)No year-earlier figure to compare
  • Net margin−24.4%Net margin, Q2 FY2026, three months to 2026-06-30. net income / revenueNet income: −$12.2m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-06, accession 0001628280-26-054446.Revenue: $49.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054446.Report this figure+216.1 pts on a year earlier
  • Diluted EPS−$0.33Diluted EPS, Q2 FY2026, three months to 2026-06-30−$0.33 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-06, accession 0001628280-26-054446.Report this figure+78.1% on a year earlier
  • Free cash flownot reported (Capital expenditure not reported)No year-earlier figure to compare

Last eight quarters

Full statements
Revenue$49.7mNet margin −24.4%
Diluted EPS−$0.33, Q2 FY2026
Octave Specialty Group Inc, key figures for the last eight quarters
Line itemUnitQ1 FY20242024-09-30Q4 FY20242024-12-31Q1 FY20252025-03-31Q2 FY20252025-06-30Q2 FY20252025-09-30Q4 FY20252025-12-31Q1 FY20262026-03-31Q2 FY20262026-06-30Shape over the periods
Revenue$m23.1Revenue, Q1 FY2024, three months to 2024-09-30$23.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-10, accession 0001628280-25-051136.Report this figure38.0Revenue, Q4 FY2024, three months to 2024-12-31$38.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-04, accession 0001628280-26-014653. Derived: 12-month figure less the 9-month figure.Report this figure36.8Revenue, Q1 FY2025, three months to 2025-03-31$36.8m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-06, accession 0001628280-26-031393.Report this figure30.3Revenue, Q2 FY2025, three months to 2025-06-30$30.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054446.Report this figure36.1Revenue, Q2 FY2025, three months to 2025-09-30$36.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-10, accession 0001628280-25-051136.Report this figure40.2Revenue, Q4 FY2025, three months to 2025-12-31$40.2m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-04, accession 0001628280-26-014653. Derived: 12-month figure less the 9-month figure.Report this figure68.2Revenue, Q1 FY2026, three months to 2026-03-31$68.2m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-06, accession 0001628280-26-031393.Report this figure49.7Revenue, Q2 FY2026, three months to 2026-06-30$49.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054446.Report this figure
Gross margin%not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)
Operating margin%not reported (Operating income not reported)not reported (Operating income not reported)not reported (Operating income not reported)not reported (Operating income not reported)not reported (Operating income not reported)not reported (Operating income not reported)not reported (Operating income not reported)not reported (Operating income not reported)
Net margin%(119.2%)Net margin, Q1 FY2024, three months to 2024-09-30. net income / revenueNet income: −$27.5m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-11-10, accession 0001628280-25-051136.Revenue: $23.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-10, accession 0001628280-25-051136.Report this figure(1442.5%)Net margin, Q4 FY2024, three months to 2024-12-31. net income / revenueNet income: −$548.3m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2025-03-06, accession 0000874501-25-000032.Revenue: $38.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-04, accession 0001628280-26-014653. Derived: 12-month figure less the 9-month figure.Report this figure(126.2%)Net margin, Q1 FY2025, three months to 2025-03-31. net income / revenueNet income: −$46.4m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-05-06, accession 0001628280-26-031393.Revenue: $36.8m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-06, accession 0001628280-26-031393.Report this figure(240.6%)Net margin, Q2 FY2025, three months to 2025-06-30. net income / revenueNet income: −$73.0m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-06, accession 0001628280-26-054446.Revenue: $30.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054446.Report this figure(312.3%)Net margin, Q2 FY2025, three months to 2025-09-30. net income / revenueNet income: −$112.6m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-11-10, accession 0001628280-25-051136.Revenue: $36.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-10, accession 0001628280-25-051136.Report this figure(68.1%)Net margin, Q4 FY2025, three months to 2025-12-31. net income / revenueNet income: −$27.4m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-03-04, accession 0001628280-26-014653. Derived: 12-month figure less the 9-month figure.Revenue: $40.2m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-04, accession 0001628280-26-014653. Derived: 12-month figure less the 9-month figure.Report this figure(10.0%)Net margin, Q1 FY2026, three months to 2026-03-31. net income / revenueNet income: −$6.9m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-05-06, accession 0001628280-26-031393.Revenue: $68.2m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-06, accession 0001628280-26-031393.Report this figure(24.4%)Net margin, Q2 FY2026, three months to 2026-06-30. net income / revenueNet income: −$12.2m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-06, accession 0001628280-26-054446.Revenue: $49.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001628280-26-054446.Report this figure
Diluted EPS$ per share(0.63)Diluted EPS, Q1 FY2024, three months to 2024-09-30−$0.63 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-11-10, accession 0001628280-25-051136.Report this figure(10.23)Diluted EPS, Q4 FY2024, three months to 2024-12-31−$10.23 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2025-03-06, accession 0000874501-25-000032.Report this figure(1.21)Diluted EPS, Q1 FY2025, three months to 2025-03-31−$1.21 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-06, accession 0001628280-26-031393.Report this figure(1.51)Diluted EPS, Q2 FY2025, three months to 2025-06-30−$1.51 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-06, accession 0001628280-26-054446.Report this figure(2.35)Diluted EPS, Q2 FY2025, three months to 2025-09-30−$2.35 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-11-10, accession 0001628280-25-051136.Report this figurenot reported (Diluted EPS not reported)(0.13)Diluted EPS, Q1 FY2026, three months to 2026-03-31−$0.13 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-06, accession 0001628280-26-031393.Report this figure(0.33)Diluted EPS, Q2 FY2026, three months to 2026-06-30−$0.33 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-06, accession 0001628280-26-054446.Report this figure
Free cash flow$mnot reported (Capital expenditure not reported)not reported (Capital expenditure not reported)not reported (Capital expenditure not reported)not reported (Capital expenditure not reported)not reported (Capital expenditure not reported)not reported (Capital expenditure not reported)not reported (Capital expenditure not reported)not reported (Capital expenditure not reported)

Focus or hover a figure to see its XBRL concept, period and filing; each links to that filing. A figure marked d is derived: a quarter computed from year-to-date figures, such as the fourth quarter as the fiscal year less the nine months before it. A ratio reads not reported when any input is missing.

Last five fiscal years

Revenue$143.4mNet margin −180.7%
Diluted EPS−$5.93, FY2025
Octave Specialty Group Inc, key figures for the last five fiscal years
Line itemUnitFY2021-12-31FY2022-12-31FY2023-12-31FY20242024-12-31FY20252025-12-31Shape over the periods
Revenue$m26.0Revenue, period not labelled, twelve months to 2021-12-31$26.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2024-02-27, accession 0000874501-24-000040.Report this figure30.7Revenue, period not labelled, twelve months to 2022-12-31$30.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2025-03-06, accession 0000874501-25-000032.Report this figure51.3Revenue, period not labelled, twelve months to 2023-12-31$51.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-04, accession 0001628280-26-014653.Report this figure92.0Revenue, FY2024, twelve months to 2024-12-31$92.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-04, accession 0001628280-26-014653.Report this figure143Revenue, FY2025, twelve months to 2025-12-31$143.4m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-04, accession 0001628280-26-014653.Report this figure
Gross margin%not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)
Operating margin%not reported (Operating income not reported)not reported (Operating income not reported)not reported (Operating income not reported)not reported (Operating income not reported)not reported (Operating income not reported)
Net margin%(65.4%)Net margin, period not labelled, twelve months to 2021-12-31. net income / revenueNet income: −$17.0m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2024-02-27, accession 0000874501-24-000040.Revenue: $26.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2024-02-27, accession 0000874501-24-000040.Report this figure1701.0%Net margin, period not labelled, twelve months to 2022-12-31. net income / revenueNet income: $522.1m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2025-03-06, accession 0000874501-25-000032.Revenue: $30.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2025-03-06, accession 0000874501-25-000032.Report this figure9.7%Net margin, period not labelled, twelve months to 2023-12-31. net income / revenueNet income: $5.0m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-03-04, accession 0001628280-26-014653.Revenue: $51.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-04, accession 0001628280-26-014653.Report this figure(604.3%)Net margin, FY2024, twelve months to 2024-12-31. net income / revenueNet income: −$556.1m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-03-04, accession 0001628280-26-014653.Revenue: $92.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-04, accession 0001628280-26-014653.Report this figure(180.7%)Net margin, FY2025, twelve months to 2025-12-31. net income / revenueNet income: −$259.1m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-03-04, accession 0001628280-26-014653.Revenue: $143.4m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-03-04, accession 0001628280-26-014653.Report this figure
Diluted EPS$ per share(0.61)Diluted EPS, period not labelled, twelve months to 2021-12-31−$0.61 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2024-02-27, accession 0000874501-24-000040.Report this figure11.48Diluted EPS, period not labelled, twelve months to 2022-12-31$11.48 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2025-03-06, accession 0000874501-25-000032.Report this figure0.18Diluted EPS, period not labelled, twelve months to 2023-12-31$0.18 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2026-03-04, accession 0001628280-26-014653.Report this figure(11.96)Diluted EPS, FY2024, twelve months to 2024-12-31−$11.96 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2026-03-04, accession 0001628280-26-014653.Report this figure(5.93)Diluted EPS, FY2025, twelve months to 2025-12-31−$5.93 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2026-03-04, accession 0001628280-26-014653.Report this figure
Free cash flow$mnot reported (Capital expenditure not reported)not reported (Capital expenditure not reported)not reported (Capital expenditure not reported)not reported (Capital expenditure not reported)not reported (Capital expenditure not reported)

Focus or hover a figure to see its XBRL concept, period and filing; each links to that filing. A figure marked d is derived: a quarter computed from year-to-date figures, such as the fourth quarter as the fiscal year less the nine months before it. A ratio reads not reported when any input is missing.

Insider purchases and sales

All insider transactions

The last 20 open-market transactions reported on Form 4 (codes P and S). The reported price is the price per share the insider stated on the form: filing data, not a market price.

No open-market purchases or sales by insiders are in coverage from Dec 2024 to Nov 2026.

No open-market purchases or sales by insiders are in coverage for this company.

Funds that report holding it

All funds

From each manager's latest Form 13F, largest reported value first. Reported value is as filed at the quarter end: filing data, not a price. A put or call is an option position, not shares held.

Funds that report holding Octave Specialty Group Inc
FundQuarter endedReported valueSharesPut or callChange on the quarter before
BlackRock, Inc.2026-06-30$28.5m4,572,516Added+654,718
Western Standard LLC2026-06-30$14.0m2,247,591Unchanged
VANGUARD CAPITAL MANAGEMENT LLC2026-06-30$12.3m1,972,619Added+27,543
Prescott Group Capital Management, L.L.C.2026-06-30$10.3m1,647,793Added+55,206
THIRD AVENUE MANAGEMENT LLC2026-06-30$8.4m1,341,879Added+668
Bain Capital Credit, LP2026-06-30$6.9m1,108,012Unchanged
GEODE CAPITAL MANAGEMENT, LLC2026-06-30$6.9m1,106,335Added+83,897
STATE STREET CORP2026-06-30$5.6m898,673Reduced−42,731
DIMENSIONAL FUND ADVISORS LP2026-06-30$4.5m716,947Reduced−593,185
SUSQUEHANNA INTERNATIONAL GROUP, LLP2026-06-30$4.2m676,800PutAdded+301,000

Recent filings

All 1,151 filings

Reports and events: 10-K, 10-Q, 8-K, proxy statements and ownership schedules.

Octave Specialty Group Inc, recent filings
FiledFormWhat it isAccession number
2026-08-0617:03 ET10-QQuarterly reportPeriod 2026-06-300001628280-26-054446
2026-08-0616:58 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001628280-26-054440
2026-05-2916:56 ET8-K5.07 Shareholder vote results0001628280-26-039234
2026-05-0616:50 ET10-QQuarterly reportPeriod 2026-03-310001628280-26-031393
2026-05-0616:41 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001628280-26-031377
2026-04-1016:10 ETDEF 14AProxy statementPeriod 2025-12-310001628280-26-024684
2026-04-0716:08 ET8-K1.01 Entry into a material agreement; 2.03 New direct financial obligation; 9.01 Financial statements and exhibits0001628280-26-024072
2026-03-0416:29 ET10-KAnnual reportPeriod 2025-12-310001628280-26-014653
2026-02-2316:19 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001628280-26-010639
2026-01-0616:03 ET8-K9.01 Financial statements and exhibits0001628280-26-000870

Latest annual report

Form 10-K for the fiscal year ended Dec 31, 2025Filed Mar 4, 2026. Its page lists the documents and the extracted sections, such as Business and Risk factors.

Forecast league

Q3 FY2026, the quarter ended 2026-09-30, is open for forecasts until the first results filing for it is accepted by EDGAR. Results are due by [object Promise].Forecast this quarter

About the filer

CIK
874501
Tickers
OSG
Exchange
NYSE
SIC code
6351 Surety Insurance
Sector
Financials
Fiscal year ends
Dec 31
Incorporated in
DE
Filer category
Accelerated filer
Former names
AMBAC FINANCIAL GROUP INC (to 2025-11-10); AMBAC INC /DE/ (to 1998-01-02)

Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 30, 2026, 12:35 ET. Listed shows no prices and gives no investment advice.