| 2025-05-13 | -22.6% | news | Seeking Alpha | Ambac signals strong premium growth and targets $80M–$90M adjusted EBITDA by 2028 while expanding MGA platform |
| 2025-05-13 | -22.6% | earnings | Seeking Alpha | Ambac Financial Group, Inc. (AMBC) Q1 2025 Earnings Call Transcript |
| 2025-05-12 | -22.4% | earnings | Seeking Alpha | Ambac Financial Group Non-GAAP EPS of -$0.13 misses by $0.06, revenue of $62.76M |
| 2025-08-07 | -19.4% | earnings | Seeking Alpha | Ambac Financial Group Non-GAAP EPS of -$0.22 beats by $0.02, revenue of $54.96M misses by $0.63M |
| 2022-10-07 | +19.2% | analyst | Zacks Investment Research | What is the current Price Target and Forecast for Octave Specialty Group, Inc. (OSG) - Zacks Investment Research |
| 2025-07-17 | +18.5% | earnings | Seeking Alpha | Ambac reports Wisconsin commissioner slates hearing on legacy business sale |
| 2025-09-30 | -17.1% | news | Seeking Alpha | Business Update Call |
| 2025-09-30 | -17.1% | news | Seeking Alpha | Ambac Financial Group, Inc. (AMBC) Business Update Call (Transcript) |
| 2025-09-30 | -17.1% | M&A | Seeking Alpha | Ambac to acquire health care program manager after shedding legacy guarantee businesses |
| 2025-11-10 | +17.1% | news | Seeking Alpha | Ambac Financial rebrands as Octave Specialty |
| 2025-11-10 | +17.1% | earnings | Seeking Alpha | Ambac Financial Group Non-GAAP EPS of -$0.06 beats by $0.17 |
| 2025-11-10 | +17.1% | earnings | Stock Titan | Octave Specialty Group (NYSE: AMBC) to trade as OSG Nov 20; Cirrata and Beat rebrand - Stock Titan |
| 2022-08-08 | +16.0% | legal | SEC EDGAR | OSG 8-K: 2.02 and (SEC Filing) |
| 2026-04-07 | -15.9% | news | Seeking Alpha | Octave Specialty gets an additional $40M term loan in credit amendment |
| 2026-04-07 | -15.9% | news | Seeking Alpha | Octave Specialty gets an additional $40M term loan in credit amendment (OSG:NYSE) - Seeking Alpha |
| 2026-04-07 | -15.9% | news | TipRanks | Octave Specialty Group Amends Credit Facility, Adds Term Loan - TipRanks |
| 2026-04-07 | -15.9% | news | Stock Titan | Octave Specialty (OSG) takes $40,000,000 Additional Term Loan, lifting total to $139,375,000 - Stock Titan |
| 2025-11-11 | +13.8% | earnings | Seeking Alpha | Ambac Financial stock jumps after Q3 loss ekes out small beat |
| 2025-11-11 | +13.8% | earnings | Seeking Alpha | Ambac Financial Group, Inc. (AMBC) Q3 2025 Earnings Call Transcript |
| 2025-11-11 | +13.8% | earnings | Seeking Alpha | Ambac Financial Group, Inc. 2025 Q3 - Results - Earnings Call Presentation |
| 2026-04-08 | -11.8% | news | Quiver Quantitative | OSG | Octave Specialty Group, Inc. Insider Trading - Quiver Quantitative |
| 2026-02-23 | -11.6% | earnings | Seeking Alpha | Ambac Financial Group Non-GAAP EPS of -$0.02 beats by $0.18, revenue from continuing operations of $66.9M |
| 2026-02-23 | -11.6% | earnings | Yahoo Finance | Octave Specialty Group (OSG) Reports Q4 Loss, Misses Revenue Estimates - Yahoo Finance |
| 2021-05-07 | -10.5% | legal | SEC EDGAR | OSG 8-K: 2.02 and (SEC Filing) |
| 2025-08-08 | -9.3% | news | Seeking Alpha | Ambac outlines strategic initiatives and targets $80M–$90M adjusted EBITDA by 2028 as transformation accelerates |
| 2025-08-08 | -9.3% | earnings | Seeking Alpha | Ambac Financial Group, Inc. 2025 Q2 - Results - Earnings Call Presentation |
| 2025-08-08 | -9.3% | earnings | Seeking Alpha | Ambac Financial Group, Inc. (AMBC) Q2 2025 Earnings Call Transcript |
| 2023-12-07 | +8.9% | legal | SEC EDGAR | OSG 8-K: 8.01 and (SEC Filing) |
| 2026-02-25 | +8.2% | earnings | MarketBeat | Octave Specialty Group Q4 Earnings Call Highlights |
| 2021-11-09 | -7.5% | legal | SEC EDGAR | OSG 8-K: 2.02 and (SEC Filing) |
| 2026-04-13 | +7.4% | news | Cổng thông tin điện tử tỉnh Tây Ninh | Is Octave (OSG) Stock Moving Higher | Price at $4.01, Up 1.78% - Real-time Trade Ideas - Cổng thông tin điện tử tỉnh Tây Ninh |
| 2025-07-07 | +6.1% | news | Seeking Alpha | Ambac, Oaktree extend pact for Financial Guarantee business |
| 2023-08-07 | -5.6% | legal | SEC EDGAR | OSG 8-K: 2.02 and (SEC Filing) |
| 2026-04-12 | +5.4% | news | TradingView | OSG Options Volatility — NYSE:OSG - TradingView |
| 2026-03-10 | -5.3% | news | Seeking Alpha | Octave: Still Waiting On The Turnaround |
| 2026-03-10 | -5.3% | news | Seeking Alpha | Octave: Still Waiting On The Turnaround (NYSE:OSG) - Seeking Alpha |
| 2025-10-03 | +5.2% | M&A | Seeking Alpha | Ambac: Surprise Acquisition Changes Outlook (Rating Downgrade) |
| 2026-04-17 | -5.1% | analyst | MSN | Octave Specialty Group (OSG) price target decreased by 10.00% to 13.77 - MSN |
| 2026-04-17 | -5.1% | news | Cổng thông tin điện tử tỉnh Tây Ninh | Octave (OSG) Stock: Why Value Investors Seek It (Mini Rally) 2026-04-16 - Certified Trade Ideas - Cổng thông tin điện tử tỉnh Tây Ninh |
| 2026-01-07 | -4.5% | news | simplywall.st | Octave Specialty Group (NYSE:OSG investor three-year losses grow to 58% as the stock sheds US$35m this past week - simplywall.st |
| 2026-01-07 | -4.5% | news | simplywall.st | Claude LeBlanc Bought 1.2% More Shares In Octave Specialty Group - simplywall.st |
| 2021-12-10 | -4.3% | legal | SEC EDGAR | OSG 8-K: 8.01 and (SEC Filing) |
| 2023-08-29 | -3.8% | legal | SEC EDGAR | OSG 8-K: 8.01 and (SEC Filing) |
| 2026-02-24 | -3.7% | earnings | GuruFocus.com | Octave Specialty Group Inc (OSG) Q4 2025 Earnings Call Highlights: Strong Revenue Growth Amidst ... |
| 2026-02-24 | -3.7% | earnings | Motley Fool | Octave Specialty (OSG) Earnings Call Transcript |
| 2026-02-24 | -3.7% | earnings | Seeking Alpha | Octave Specialty Group, Inc. (OSG) Q4 2025 Earnings Call Transcript |
| 2026-02-24 | -3.7% | earnings | Seeking Alpha | Octave Specialty Group, Inc. 2025 Q4 - Results - Earnings Call Presentation |
| 2026-02-24 | -3.7% | news | simplywall.st | Octave Specialty Group NYSE OSG Combined Ratios Above 100% Reinforce Bearish Underwriting Narratives - simplywall.st |
| 2026-02-24 | -3.7% | news | Business Wire | Octave Specialty Group Reports Fourth Quarter 2025 Results - Business Wire |
| 2022-05-09 | -3.4% | legal | SEC EDGAR | OSG 8-K: 2.02 and (SEC Filing) |
| 2024-10-15 | +3.4% | news | intelligentinvestor.com.au | Octave Specialty Group Inc. (NYSE:OSG) - intelligentinvestor.com.au |
| 2025-08-06 | -3.3% | earnings | Seeking Alpha | Ambac Financial Group Q2 2025 Earnings Preview |
| 2024-05-29 | +3.2% | legal | SEC EDGAR | OSG 8-K: 8.01 and (SEC Filing) |
| 2025-11-19 | -3.2% | news | marketscreener.com | Ambac Financial Group, Inc. will Change its Ticker to OSG from AMBC - marketscreener.com |
| 2024-05-20 | -3.1% | legal | SEC EDGAR | OSG 8-K: 1.01, 5.02, 8.01 (SEC Filing) |
| 2025-04-25 | +2.9% | news | Stock Titan | OSG Stock Price, News & Analysis - Stock Titan |
| 2026-04-23 | -2.7% | news | GuruFocus | THIRD AVENUE SMALL-CAP VALUE FUND's Octave Specialty Group Inc(OSG) Holding History - GuruFocus |
| 2026-04-23 | -2.7% | earnings | Xã Châu Thành | Is Octave (OSG) stock losing upward strength | Q4 2025: Earnings Beat Estimates - Gamma Squeeze - Xã Châu Thành |
| 2024-03-11 | -2.7% | legal | SEC EDGAR | OSG 8-K: 2.02 and (SEC Filing) |
| 2025-08-28 | +2.3% | news | Seeking Alpha | Ambac: The Turning Point Is Near |
| 2025-11-13 | -2.3% | news | Yahoo Finance | What Catalysts Could Shift the Narrative for Octave Specialty Group Now? - Yahoo Finance |
| 2021-08-06 | -2.2% | legal | SEC EDGAR | OSG 8-K: 2.02 and (SEC Filing) |
| 2024-07-10 | +2.2% | legal | SEC EDGAR | OSG 8-K: 1.02, 2.01, 3.01, 3.03, 5.01, 5.02, 5.03, 8.01 (SEC Filing) |
| 2024-05-10 | -2.0% | legal | SEC EDGAR | OSG 8-K: 2.02 and (SEC Filing) |
| 2025-06-15 | +2.0% | M&A | Seeking Alpha | Ambac Financial Group: Conversations To Acquire Competitors, News About Oaktree Capital, And Cheap |
| 2022-11-15 | -1.8% | legal | SEC EDGAR | OSG 8-K: 8.01 (SEC Filing) |
| 2024-04-08 | -1.7% | legal | SEC EDGAR | OSG 8-K: 5.02 (SEC Filing) |
| 2022-11-03 | +1.6% | legal | SEC EDGAR | OSG 8-K: 2.02 and (SEC Filing) |
| 2026-01-10 | +1.6% | analyst | Yahoo Finance | What Analysts Think Is Changing The Story For Octave Specialty Group (OSG) - Yahoo Finance |
| 2026-04-09 | -1.5% | news | Business Wire | Octave Specialty Group to Release First Quarter 2026 Results on May 6, 2026 |
| 2026-04-09 | -1.5% | earnings | Stock Titan | Octave Specialty sets May 6 earnings release, May 7 investor call - Stock Titan |
| 2026-04-01 | -1.5% | news | Simply Wall St. | Octave Specialty Group Insiders Placed Bullish Bets Worth US$1.34m |
| 2026-04-01 | -1.5% | news | Yahoo Finance | Octave Specialty Group Insiders Placed Bullish Bets Worth US$1.34m - Yahoo Finance |
| 2023-06-21 | -1.5% | legal | SEC EDGAR | OSG 8-K: 8.01 (SEC Filing) |
| 2026-03-25 | -1.4% | news | Stock Titan | Octave Specialty Group (OSG) awards RSU grant to Executive VP - Stock Titan |
| 2026-03-25 | -1.4% | news | Stock Titan | OSG (OSG) CAO receives 8,067 RSUs and settles prior 835-unit award - Stock Titan |
| 2026-02-22 | -1.4% | earnings | Seeking Alpha | Ambac Financial Group Q4 2025 Earnings Preview |
| 2025-11-29 | -1.3% | news | admiralmarkets.com | Octave Specialty Group Inc(OSG.US) price, News & Forecast - admiralmarkets.com |
| 2026-02-18 | +1.1% | news | Stock Titan | AI platform Hammurabi cuts stop-loss underwriting from days to minutes - Stock Titan |
| 2026-04-03 | -1.1% | earnings | MarketBeat | SG Americas Securities LLC Purchases 327,822 Shares of Octave Specialty Group, Inc. $OSG - MarketBeat |
| 2026-03-23 | +1.0% | news | Business Wire | Octave Specialty Group Announces Meeting and Record Date for 2026 Annual Meeting of Stockholders |
| 2026-03-23 | +1.0% | news | Business Wire | Octave Specialty Group Announces Meeting and Record Date for 2026 Annual Meeting of Stockholders - Business Wire |
| 2022-06-13 | -1.0% | legal | SEC EDGAR | OSG 8-K: 8.01 (SEC Filing) |
| 2025-11-09 | +0.9% | earnings | Seeking Alpha | Ambac Financial Group Q3 2025 Earnings Preview |
| 2026-03-13 | -0.8% | news | Zacks | Octave Specialty (OSG) Could Find a Support Soon, Here's Why You Should Buy the Stock Now |
| 2026-03-13 | -0.8% | news | Yahoo Finance | Octave Specialty (OSG) Could Find a Support Soon, Here's Why You Should Buy the Stock Now - Yahoo Finance |
| 2023-05-08 | +0.8% | legal | SEC EDGAR | OSG 8-K: 2.02 and (SEC Filing) |
| 2025-05-09 | +0.8% | earnings | Seeking Alpha | Ambac Financial Group Q1 2025 Earnings Preview |
| 2026-03-06 | -0.8% | earnings | Zacks | 3 Best Earnings Acceleration Stocks to Buy in March 2026 |
| 2026-03-19 | -0.7% | news | Zacks | Down 15.5% in 4 Weeks, Here's Why Octave Specialty (OSG) Looks Ripe for a Turnaround |
| 2026-03-19 | -0.7% | news | Yahoo Finance | Down 15.5% in 4 Weeks, Here's Why Octave Specialty (OSG) Looks Ripe for a Turnaround - Yahoo Finance |
| 2023-11-06 | -0.7% | legal | SEC EDGAR | OSG 8-K: 2.02 and (SEC Filing) |
| 2026-03-09 | +0.6% | news | Zacks | Zacks.com featured highlights include Intuit, Goldman Sachs and Octave Specialty |
| 2026-04-02 | -0.6% | legal | Stock Titan | OSG SEC Filings - Octave Specialty Group Inc 10-K, 10-Q, 8-K Forms - Stock Titan |
| 2026-04-02 | -0.6% | news | Stock Titan | Octave Specialty Group (OSG) director granted 7,441 RSUs as equity compensation - Stock Titan |
| 2021-10-04 | +0.5% | legal | SEC EDGAR | OSG 8-K: 1.01, 1.02, 7.01 (SEC Filing) |
| 2025-06-16 | -0.5% | news | Seeking Alpha | Ambac sale of legacy guarantee business exceeds initial timeline |
| 2024-01-30 | -0.5% | legal | SEC EDGAR | OSG 8-K: 8.01 and (SEC Filing) |
| 2023-09-18 | +0.5% | legal | SEC EDGAR | OSG 8-K: 8.01 and (SEC Filing) |
| 2024-01-29 | -0.3% | news | Stock Titan | Overseas Shipholding Group Confirms Receipt of Unsolicited Indication of Interest - Stock Titan |
| 2023-03-09 | -0.3% | legal | SEC EDGAR | OSG 8-K: 2.02 and (SEC Filing) |
| 2024-03-14 | +0.2% | legal | SEC EDGAR | OSG 8-K: 8.01 and (SEC Filing) |
| 2023-03-17 | +0.2% | legal | SEC EDGAR | OSG 8-K: 8.01 (SEC Filing) |
| 2022-03-09 | +0.2% | legal | SEC EDGAR | OSG 8-K: 2.02 and (SEC Filing) |
| 2023-04-28 | -0.2% | legal | SEC EDGAR | OSG 8-K: 8.01 (SEC Filing) |
| 2022-12-09 | +0.1% | legal | SEC EDGAR | OSG 8-K: 8.01 and (SEC Filing) |