| 2025-05-08 | +40.0% | earnings | Yahoo Finance | QuidelOrtho Corp (QDEL) Q1 2025 Earnings Call Highlights: Strong Growth in Core Segments Amid ... - Yahoo Finance |
| 2025-05-07 | +39.4% | earnings | Seeking Alpha | Quidelortho sees $30M-$40M tariff impact offset, maintains 2025 guidance |
| 2025-05-07 | +39.4% | earnings | Seeking Alpha | QuidelOrtho Corporation (QDEL) Q1 2025 Earnings Call Transcript |
| 2025-05-07 | +39.4% | earnings | Seeking Alpha | Quidel Non-GAAP EPS of $0.74 beats by $0.15, revenue of $693M beats by $1.1M |
| 2025-05-07 | +39.4% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2024-02-13 | -34.4% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2026-04-16 | -28.8% | news | Investor's Business Daily | Why Diagnostics Names CareDx And QuidelOrtho Just Diverged |
| 2026-04-16 | -28.8% | news | Barrons.com | This Diagnostics Stock Is Sinking 27%. Why the Moderate Flu Season Was Bad for Business. |
| 2026-04-16 | -28.8% | legal | MT Newswires | Sector Update: Health Care Stocks Decline Late Afternoon |
| 2026-04-16 | -28.8% | legal | MT Newswires | Sector Update: Health Care Stocks Slide in Afternoon Trading |
| 2026-04-16 | -28.8% | news | MT Newswires | Top Midday Decliners |
| 2026-04-16 | -28.8% | news | Benzinga | QuidelOrtho (QDEL) Drops 20% After-Hours On Wednesday— What's Going On? - Benzinga |
| 2026-04-16 | -28.8% | news | GuruFocus | QuidelOrtho Corp (QDEL) Stock Down 27.5% -- Now Undervalued? GF Score: 61/100 - GuruFocus |
| 2026-04-16 | -28.8% | news | Benzinga | QuidelOrtho, MIND Technology, Southern First Bancshares And Other Big Stocks Moving Lower In Thursday's P - Benzinga |
| 2026-04-15 | -27.8% | news | Seeking Alpha | Stocks to watch after market on Wednesday: CDNA, JBHT, SLG, QDEL |
| 2026-04-15 | -27.8% | earnings | Seeking Alpha | QuidelOrtho flags weak Q1 revenue on softer respiratory season |
| 2026-04-15 | -27.8% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2026-04-15 | -27.8% | earnings | Stock Titan | Weaker flu season weighs on QuidelOrtho as Q1 sales fall below $620M - Stock Titan |
| 2026-04-15 | -27.8% | earnings | Stock Titan | QuidelOrtho (NASDAQ: QDEL) guides Q1 revenue $615–620M with negative free cash flow - Stock Titan |
| 2025-11-06 | -24.7% | earnings | Seeking Alpha | QuidelOrtho narrows 2025 revenue guidance to $2.68B–$2.74B as margin initiatives deliver $140M in cost savings |
| 2025-11-06 | -24.7% | earnings | Seeking Alpha | QuidelOrtho Corporation (QDEL) Q3 2025 Earnings Call Transcript |
| 2025-11-06 | -24.7% | news | Yahoo Finance | Why QuidelOrtho (QDEL) Stock Is Down Today - Yahoo Finance |
| 2026-04-13 | +22.8% | earnings | MarketBeat | QuidelOrtho (NASDAQ:QDEL) Shares Up 9% - Time to Buy? - MarketBeat |
| 2026-04-13 | +22.8% | earnings | Cổng thông tin điện tử Tỉnh Sơn La | Can QuidelOrtho Corporation (QDEL) Stock Beat Estimates | Price at $14.18, Up 2.38% - Retail Picks - Cổng thông tin điện tử Tỉnh Sơn La |
| 2026-04-13 | +22.8% | earnings | Xã Vĩnh Công | Can QuidelOrtho Corporation (QDEL) Stock Beat Estimates | Price at $14.18, Up 2.38% - Market Movers - Xã Vĩnh Công |
| 2025-11-21 | +22.2% | news | StockStory | QuidelOrtho (QDEL) Shares Skyrocket, What You Need To Know - StockStory |
| 2025-11-05 | -20.9% | earnings | Seeking Alpha | Quidel Non-GAAP EPS of $0.80 beats by $0.33, revenue of $700M beats by $36.49M |
| 2025-11-05 | -20.9% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2026-02-11 | -17.2% | earnings | Seeking Alpha | QuidelOrtho Q4 results beat on both lines, but issues weak 2026 EPS guidance |
| 2026-02-11 | -17.2% | earnings | Seeking Alpha | Quidel Non-GAAP EPS of $0.46 beats by $0.04, revenue of $724M beats by $23.91M |
| 2026-02-11 | -17.2% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2026-02-11 | -17.2% | earnings | ChartMill | QuidelOrtho Corp (NASDAQ:QDEL) Beats Q4 Earnings Estimates Despite After-Hours Stock Decline - ChartMill |
| 2026-02-11 | -17.2% | earnings | TradingView | QuidelOrtho (NASDAQ:QDEL) Exceeds Q4 CY2025 Expectations - TradingView |
| 2026-02-12 | -16.6% | earnings | Seeking Alpha | QuidelOrtho Corporation 2025 Q4 - Results - Earnings Call Presentation |
| 2026-02-12 | -16.6% | earnings | Seeking Alpha | QuidelOrtho outlines $2.7B–$2.9B 2026 revenue target as company advances R&D pipeline and margin expansion |
| 2026-02-12 | -16.6% | earnings | Seeking Alpha | QuidelOrtho Corporation (QDEL) Q4 2025 Earnings Call Transcript |
| 2026-02-12 | -16.6% | earnings | TradingView | QuidelOrtho Q4 Earnings and Revenues Beat Estimates, Margins Down - TradingView |
| 2026-02-12 | -16.6% | earnings | Stocktwits | QDEL Stock Slumps On Mixed Wall Street Price Target Revisions After Q4 Report - Stocktwits |
| 2026-02-12 | -16.6% | earnings | MSN | QDEL stock slumps on mixed Wall Street price target revisions after Q4 report - MSN |
| 2026-02-12 | -16.6% | earnings | Seeking Alpha | QuidelOrtho Corporation 2025 Q4 - Results - Earnings Call Presentation (NASDAQ:QDEL) 2026-02-12 - Seeking Alpha |
| 2025-11-20 | +16.6% | news | simplywall.st | Lacklustre Performance Is Driving QuidelOrtho Corporation's (NASDAQ:QDEL) 28% Price Drop - simplywall.st |
| 2026-04-06 | -13.7% | earnings | MarketBeat | QuidelOrtho (NASDAQ:QDEL) Shares Down 3.6% - Should You Sell? - MarketBeat |
| 2022-12-13 | -13.5% | legal | SEC EDGAR | QDEL 8-K: 5.02, 5.03 (SEC Filing) |
| 2025-05-13 | -11.1% | analyst | Seeking Alpha | SA analyst downgrades: QDEL, AMCX, PLYM, DAY |
| 2026-01-06 | +10.7% | news | AD HOC NEWS | QuidelOrtho’s Stock Is Stuck In Diagnostic Limbo As Wall Street Waits For A New Catalyst - AD HOC NEWS |
| 2025-01-13 | -10.5% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2024-11-08 | +10.1% | legal | SEC EDGAR | QDEL 8-K: 5.02 (SEC Filing) |
| 2022-06-06 | +9.4% | legal | SEC EDGAR | QDEL 8-K: 5.02 (SEC Filing) |
| 2022-08-04 | -9.0% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2025-11-07 | -8.9% | earnings | Seeking Alpha | QuidelOrtho Corporation 2025 Q3 - Results - Earnings Call Presentation |
| 2026-04-08 | -8.7% | news | Stock Titan | T. Rowe Price (QDEL) holds 5.63M shares, reports 8.3% ownership - Stock Titan |
| 2026-02-24 | +8.5% | legal | DirectorsTalk Interviews | QuidelOrtho Corporation (QDEL) Stock Analysis: Exploring a 63.60% Potential Upside in the Medical Devices Sector - DirectorsTalk Interviews |
| 2026-01-21 | -8.3% | news | Stock Titan | QuidelOrtho schedules Feb. 11 call on 2025 financial results - Stock Titan |
| 2026-01-21 | -8.3% | news | GuruFocus | QuidelOrtho (QDEL) Target Price Raised by UBS to $35 | QDEL Stoc - GuruFocus |
| 2024-11-07 | +8.3% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2026-03-09 | -8.1% | news | Seeking Alpha | QuidelOrtho Corporation (QDEL) Presents at 47th Annual Raymond James Institutional Investor Conference - Slideshow |
| 2026-04-21 | -8.0% | earnings | MarketBeat | QuidelOrtho (NASDAQ:QDEL) Shares Down 7.1% - Here's What Happened - MarketBeat |
| 2023-08-08 | -8.0% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2024-02-15 | -7.9% | earnings | simplywall.st | QuidelOrtho Corporation's (NASDAQ:QDEL) 38% Dip In Price Shows Sentiment Is Matching Revenues - simplywall.st |
| 2026-03-22 | +7.5% | legal | Stock Titan | QDEL SEC Filings - Quidel 10-K, 10-Q, 8-K Forms - Stock Titan |
| 2026-02-19 | -7.4% | legal | TradingView | QuidelOrtho Corp SEC 10-K Report - TradingView |
| 2022-10-12 | +7.3% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2023-02-15 | +6.7% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2022-05-27 | -6.5% | legal | SEC EDGAR | QDEL 8-K: 1.01, 2.01, 2.03, 3.01, 3.03, 4.01, 5.01, 5.02, 5.03, 7.01 (SEC Filing) |
| 2025-05-12 | -6.3% | analyst | Seeking Alpha | QuidelOrtho: Stagnant Growth Means Best To Avoid (Rating Downgrade) |
| 2024-11-21 | +6.2% | legal | SEC EDGAR | QDEL 8-K: 5.02, 8.01 (SEC Filing) |
| 2025-10-07 | -6.1% | news | Yahoo Finance | Why QuidelOrtho (QDEL) Stock Is Down Today - Yahoo Finance |
| 2024-11-18 | +5.9% | legal | SEC EDGAR | QDEL 8-K: 5.02 (SEC Filing) |
| 2024-07-31 | +5.4% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2023-01-06 | -5.1% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2025-05-27 | +5.1% | legal | SEC EDGAR | QDEL 8-K: 5.02, 5.07 (SEC Filing) |
| 2025-08-21 | +4.8% | legal | SEC EDGAR | QDEL 8-K: 1.01, 2.03, 8.01 (SEC Filing) |
| 2026-03-02 | -4.7% | earnings | Finviz | QuidelOrtho (QDEL): Buy, Sell, or Hold Post Q4 Earnings? - Finviz |
| 2025-11-09 | -4.6% | analyst | simplywall.st | QuidelOrtho Corporation (NASDAQ:QDEL) Third-Quarter Results Just Came Out: Here's What Analysts Are Forecasting For Next Year - simplywall.st |
| 2024-06-10 | -4.5% | news | GlobeNewswire | QUIDELORTHO CORPORATION (NASDAQ: QDEL) FINAL DEADLINE - GlobeNewswire |
| 2023-04-13 | +4.5% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2025-12-03 | +4.4% | news | Seeking Alpha | QuidelOrtho Corporation (QDEL) Presents at Citi Annual Global Healthcare Conference 2025 Transcript |
| 2025-12-03 | +4.4% | news | StockStory | Why QuidelOrtho (QDEL) Stock Is Up Today - StockStory |
| 2026-04-20 | -4.4% | M&A | MT Newswires | QuidelOrtho Completes Acquisition of LEX Diagnostics for $100 Million |
| 2026-04-20 | -4.4% | news | Business Wire | TTP Group Announces the Sale of LEX Diagnostics |
| 2026-04-20 | -4.4% | M&A | PR Newswire | QuidelOrtho Corporation Completes Acquisition of LEX Diagnostics |
| 2026-04-20 | -4.4% | news | Seeking Alpha | TTP Group sells LEX Diagnostics to QuidelOrtho to scale PCR tech |
| 2026-04-20 | -4.4% | M&A | Stock Titan | 10-minute flu and COVID PCR test joins QuidelOrtho in $100M deal - Stock Titan |
| 2026-04-20 | -4.4% | news | Stock Titan | PCR results in 6 minutes: QuidelOrtho buys LEX Diagnostics - Stock Titan |
| 2026-04-20 | -4.4% | news | UBND thành phố Hải Phòng | QuidelOrtho Corporation (QDEL) Stock Block Trade Alert (Momentum Building) 2026-04-20 - Attention Driven Stocks - UBND thành phố Hải Phòng |
| 2025-06-03 | +4.3% | news | Seeking Alpha | QuidelOrtho to discontinue Savanna platform development |
| 2023-08-18 | +3.8% | legal | SEC EDGAR | QDEL 8-K: 5.02 (SEC Filing) |
| 2026-03-29 | +3.6% | earnings | Dailyhunt | QDEL Stock Slumps On Mixed Wall Street Price Target Revisions After Q4 Report - Dailyhunt |
| 2024-04-29 | +3.5% | legal | SEC EDGAR | QDEL 8-K: 1.01 and (SEC Filing) |
| 2024-04-29 | +3.5% | legal | FinancialContent | FinancialContent - ROSEN, A HIGHLY RECOGNIZED LAW FIRM, Encourages QuidelOrtho Corporation Investors to Secure Counsel Before Important Deadline in Securities Class Action - QDEL - FinancialContent |
| 2026-03-24 | -3.5% | legal | SEC EDGAR | QDEL 8-K: 5.02, 7.01 (SEC Filing) |
| 2026-03-24 | -3.5% | executive | Stock Titan | QuidelOrtho hires ex-STAAR legal chief as Michelle Hodges retires - Stock Titan |
| 2026-03-24 | -3.5% | executive | PR Newswire | Nathaniel Sisitsky Joins QuidelOrtho as Chief Legal Officer - PR Newswire |
| 2023-05-03 | -3.3% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2025-10-21 | +3.3% | earnings | Seeking Alpha | QuidelOrtho: A Potential Short Candidate As We Approach Q3 Earnings Release |
| 2025-10-21 | +3.3% | earnings | Seeking Alpha | QuidelOrtho: A Potential Short Candidate As We Approach Q3 Earnings Release (NASDAQ:QDEL) - Seeking Alpha |
| 2025-08-05 | -3.0% | earnings | Seeking Alpha | Quidel Non-GAAP EPS of $0.12 beats by $0.11, revenue of $614M beats by $2.12M |
| 2025-08-05 | -3.0% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2026-04-23 | -3.0% | earnings | PR Newswire | Understanding and Addressing Syphilis Trends - and What's Being Missed |
| 2025-08-04 | +2.8% | earnings | Seeking Alpha | Quidel Q2 2025 Earnings Preview |
| 2026-02-13 | -2.8% | legal | SEC EDGAR | QDEL 8-K: 5.02 (SEC Filing) |
| 2021-09-14 | +2.8% | news | The Motley Fool | QuidelOrtho - QDEL - Stock Price & News - The Motley Fool |
| 2025-02-24 | +2.8% | news | Stock Titan | Inside QuidelOrtho's Growth Strategy: Key Insights Coming at Raymond James Conference - Stock Titan |
| 2024-04-30 | +2.7% | legal | Business Wire | QDEL Investors With Large Losses Should Contact Robbins LLP for Information About Their Rights in Connection With the QuidelOrtho Corporation Lawsuit - Business Wire |
| 2025-03-09 | -2.5% | news | Intellectia AI | QDEL Forecast — Price Prediction for 2026. Should I Buy QDEL? - Intellectia AI |
| 2025-08-06 | +2.4% | earnings | Seeking Alpha | QuidelOrtho Corporation 2025 Q2 - Results - Earnings Call Presentation |
| 2025-08-06 | +2.4% | news | Seeking Alpha | QuidelOrtho narrows China outlook to mid-single-digit growth as cost actions drive margin gains |
| 2025-08-06 | +2.4% | earnings | Seeking Alpha | QuidelOrtho Corporation (QDEL) Q2 2025 Earnings Call Transcript |
| 2026-03-25 | -2.3% | executive | The Globe and Mail | QuidelOrtho Announces Chief Legal Officer Leadership Transition - The Globe and Mail |
| 2024-02-21 | -2.2% | legal | SEC EDGAR | QDEL 8-K: 5.02 (SEC Filing) |
| 2026-02-14 | -2.1% | earnings | Yahoo Finance | QuidelOrtho Corporation (NASDAQ:QDEL) Just Reported Earnings, And Analysts Cut Their Target Price - Yahoo Finance |
| 2026-02-14 | -2.1% | analyst | 富途牛牛 | QuidelOrtho Corporation (NASDAQ:QDEL) Just Reported, And Analysts Assigned A US$34.67 Price Target - 富途牛牛 |
| 2024-12-10 | +2.0% | legal | SEC EDGAR | QDEL 8-K: 5.02 and (SEC Filing) |
| 2025-12-07 | -1.9% | news | The Motley Fool | Why One Value Fund Just Bought $30 Million of a Diagnostics Stock Down 90% From Pandemic-Era Highs - The Motley Fool |
| 2026-02-18 | +1.8% | news | Finviz | 3 Small-Cap Stocks We Approach with Caution - Finviz |
| 2024-05-07 | -1.8% | legal | SEC EDGAR | QDEL 8-K: 5.02, 7.01 (SEC Filing) |
| 2023-04-10 | +1.7% | legal | SEC EDGAR | QDEL 8-K: 5.02 (SEC Filing) |
| 2026-04-18 | +1.6% | news | Seeking Alpha | QuidelOrtho Looks Mispriced If 2026's FCF Turnaround Materializes |
| 2026-04-18 | +1.6% | news | Seeking Alpha | QuidelOrtho Looks Mispriced If 2026's FCF Turnaround Materializes (NASDAQ:QDEL) - Seeking Alpha |
| 2026-02-05 | -1.4% | earnings | Seeking Alpha | QuidelOrtho: EBIT Margins In Focus As We Approach Q4 Earnings Release |
| 2026-02-05 | -1.4% | legal | SEC EDGAR | QDEL 8-K: 5.02 (SEC Filing) |
| 2026-02-10 | -1.3% | earnings | Seeking Alpha | Quidel Q4 2025 Earnings Preview |
| 2022-08-10 | -1.3% | legal | SEC EDGAR | QDEL 8-K: 2.01 and (SEC Filing) |
| 2024-05-08 | -1.2% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2025-11-27 | -1.1% | executive | Yahoo Finance | Is QuidelOrtho’s (QDEL) CEO Share Purchase a Sign of Renewed Management Conviction? - Yahoo Finance |
| 2026-01-11 | -1.0% | news | simplywall.st | QuidelOrtho (NASDAQ:QDEL) Use Of Debt Could Be Considered Risky - simplywall.st |
| 2022-12-05 | +1.0% | legal | SEC EDGAR | QDEL 8-K: 8.01 (SEC Filing) |
| 2022-11-02 | -0.9% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2022-08-17 | -0.7% | legal | SEC EDGAR | QDEL 8-K: 8.01 and (SEC Filing) |
| 2026-03-01 | -0.7% | executive | The Motley Fool | QuidelOrtho Corp Director Purchases 10k Shares as CFO Retires - The Motley Fool |
| 2023-10-12 | -0.6% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2024-01-09 | +0.5% | news | CNN | symbol__ Stock Quote Price and Forecast - CNN |
| 2025-11-04 | -0.4% | earnings | Seeking Alpha | Quidel Q3 2025 Earnings Preview |
| 2024-02-29 | -0.3% | legal | SEC EDGAR | QDEL 8-K: 5.02 (SEC Filing) |
| 2025-02-12 | -0.3% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2023-11-01 | -0.3% | legal | SEC EDGAR | QDEL 8-K: 2.02 and (SEC Filing) |
| 2026-03-27 | -0.1% | news | Stock Titan | Vanguard disaggregates holdings; reports 0 shares of QuidelOrtho (QDEL) - Stock Titan |
| 2026-03-27 | -0.1% | news | Stock Traders Daily | Precision Trading with Quidelortho Corp Com (QDEL) Risk Zones - Stock Traders Daily |
| 2023-12-01 | -0.0% | legal | SEC EDGAR | QDEL 8-K: 5.02 and (SEC Filing) |
| 2026-04-25 | — | news | MSN | QuidelOrtho (QDEL) drops 20% after-hours on Wednesday—what's going on? - MSN |
| 2026-04-24 | — | news | StockStory | 3 Out-of-Favor Stocks We Steer Clear Of |
| 2026-04-24 | — | executive | Stock Titan | QuidelOrtho (QDEL) COO reports RSU vesting and tax share withholding - Stock Titan |