Magnite, Inc. (MGNI)
MGNI moved a median of +0.19% 30 minutes after news, and +0.34% by the close. How MGNI actually reacts to news — the realized, point-in-time move the market made, measured across 626 labeled events over the last three years with zero look-ahead.
MGNI’s median reaction, across the day.
| Horizon | Median | % positive | Events |
|---|---|---|---|
| 5-min | -0.06% | 45% | 622 |
| 30-min | +0.19% | 57% | 623 |
| 60-min | +0.32% | 55% | 623 |
| to close | +0.34% | 53% | 618 |
| Middle 50% of MGNI reactions | -0.98% to +0.94% |
|---|---|
| Median reaction (30-min) | +0.19% |
| Measured reactions | 626 |
Half of all Magnite, Inc. news events land between -0.98% and +0.94% at 30 minutes.
Reaction stats as of 2026-09-21. Newest measured event . Reaction = percent move vs. the price at the news timestamp.
How MGNI reacts, by analyst action.
| Event | Events | Median 30-min | % positive | Median to close |
|---|---|---|---|---|
| Coverage initiations | 26 | -0.25% | 46% | -1.23% |
| Rating reiterations | 132 | +0.39% | 60% | +0.53% |
| Price-target raises | 32 | -0.03% | 50% | -0.92% |
Last 3 years, pulled 2026-09-21. Reaction = percent move vs. the price at the news timestamp. Counts and medians only. The same measurement runs across every name in the dataset. 3 further classes were observed with fewer than 10 measured events and are not published. See how MGNI ranks against every other measured name →
That’s how MGNI usually reacts — get an email when it moves on news →Email me when MGNI moves on news.
One email per qualifying move — the headline, the measured reaction, and how it compares to MGNI's baseline. Nothing else.
Recent MGNI events, each with its measured reaction.
| Date | Headline | Event | Source | 5-min | To close |
|---|---|---|---|---|---|
| LG Ad Solutions and Magnite Expand Partnership to Advance Agentic Buying on the Home Screen | Press release | GlobeNewswire | +0.16% | -4.25% | |
| Form 8-K MAGNITE, INC. For: Oct 07 | SEC filing · Form 8-K | SEC EDGAR | +1.08% | +1.76% | |
| Magnite Successfully Completes Term Loan and Revolving Credit Facility Repricing | Press release | GlobeNewswire | +1.08% | +1.76% | |
| Magnite to Announce Third Quarter 2026 Financial Results on November 4, 2026 | Press release | GlobeNewswire | +0.60% | -0.12% | |
| SafeGuard Privacy Wins Second AdExchanger Award for Best Privacy Technology | Press release | PR Web | +0.60% | -0.12% | |
| Magnite Named Primary Video Ad Server and a Programmatic Technology Provider for HP TV+ | Press release | GlobeNewswire | -1.07% | -2.51% | |
| Scowtt Appoints AdTech Veteran Ben Trenda as Chief Revenue Officer | Press release | PR Newswire | -0.37% | -0.25% | |
| Form 8-K MAGNITE, INC. For: Sep 21 | SEC filing · Form 8-K | SEC EDGAR | -1.13% | -3.28% | |
| Magnite Promotes Brian Gephart to Chief Financial Officer | Press release | GlobeNewswire | +0.21% | +0.64% | |
| Magnite Advances Agentic Vision as Major Media Owners, Buyers and Technology Players Leverage Orchestration Layer | Press release | GlobeNewswire | -0.57% | +0.34% | |
| Magnite and ITN Expand Partnership to Introduce Agentic AI Solution for Local Linear TV | Press release | GlobeNewswire | -1.03% | +0.68% | |
| Telly Takes Television Advertising Beyond The Commercial Break | Press release | Business Wire | -1.17% | +0.51% | |
| Magnite Launches First Agentic Campaign in EMEA With Amnet France | Press release | GlobeNewswire | -0.42% | -0.88% | |
| Magnite Establishes Premier Destination for Verified Live Streaming Inventory | Press release | GlobeNewswire | +0.86% | -1.95% | |
| Magnite Research Reveals Live Streaming Brings Audiences Together and Keeps Them Engaged Beyond the Main Event | Press release | GlobeNewswire | -0.78% | -2.79% | |
| Magnite to Participate in Upcoming Financial Conferences | Press release | GlobeNewswire | +1.99% | +0.16% | |
| Form 10-Q MAGNITE, INC. For: Jun 30 | SEC filing · Form 10-Q | SEC EDGAR | +9.15% | +7.04% | |
| Form 8-K MAGNITE, INC. For: Aug 05 | SEC filing · Form 8-K | SEC EDGAR | +9.15% | +7.04% | |
| Magnite Reports Second Quarter 2026 Results | Press release | GlobeNewswire | +9.15% | +7.04% | |
| Business Insider Launches Standalone FAST Channel, Partners with Magnite’s SpringServe for Next Phase of Streaming Growth | Press release | GlobeNewswire | +0.32% | +1.06% | |
| Magnite to Announce Second Quarter 2026 Financial Results on August 5, 2026 | Press release | GlobeNewswire | -0.05% | +0.49% | |
| Magnite and Viasat Aviation Partner to Bring Programmatic Advertising to In-Flight Screens | Press release | GlobeNewswire | +1.26% | -0.87% | |
| Form 8-K MAGNITE, INC. For: Jun 08 | SEC filing · Form 8-K | SEC EDGAR | -1.11% | +0.00% | |
| Introducing Magnite Orchestration: Powering the Future of Agentic Advertising | Press release | GlobeNewswire | -1.35% | +4.52% | |
| JioHotstar Deepens Partnership with Magnite to Advance Programmatic Monetisation and Mediation Across Live Sports and Entertainment Portfolio | Press release | GlobeNewswire | -0.27% | +0.54% | |
| Dentsu extends Magnite partnership to streamline CTV activation across Sweden | Press release | GlobeNewswire | -1.32% | -0.76% | |
| Form 10-Q MAGNITE, INC. For: Mar 31 | SEC filing · Form 10-Q | SEC EDGAR | -0.39% | +9.55% | |
| Form 8-K MAGNITE, INC. For: May 06 | SEC filing · Form 8-K | SEC EDGAR | -0.39% | +9.55% | |
| Magnite Reports First Quarter 2026 Results | Press release | GlobeNewswire | -0.39% | +9.55% | |
| Magnite to Participate in Upcoming Financial Conferences | Press release | GlobeNewswire | +1.41% | +4.18% | |
| Magnite Unveils New AI-Powered Intelligent Assistance and Agentic Execution Capabilities, Empowering Media Owners and Buyers | Press release | GlobeNewswire | -1.06% | -1.66% | |
| Form ARS MAGNITE, INC. For: Dec 31 | SEC filing · Form ARS | SEC EDGAR | +0.42% | +1.21% | |
| Form DEF 14A MAGNITE, INC. For: Jun 08 | SEC filing · Form DEF | SEC EDGAR | +0.42% | +1.21% | |
| Form DEFA14A MAGNITE, INC. | SEC filing · Form DEFA14A | SEC EDGAR | +0.42% | +1.21% | |
| Hearst News Selects Magnite as Preferred Deal Partner for High-Impact Formats Across Web and CTV Supply, Announces SpringServe Partnership | Press release | GlobeNewswire | -0.15% | -3.75% | |
| Form 8-K MAGNITE, INC. For: Apr 20 | SEC filing · Form 8-K | SEC EDGAR | -0.15% | -3.75% | |
| Magnite Announces Retirement of CFO David Day | Press release | GlobeNewswire | -0.15% | -3.75% | |
| AMC Global Media’s Unified Streaming and Linear Programmatic Buying Capabilities Now Available Through Magnite | Press release | GlobeNewswire | +3.13% | +6.34% | |
| Form 8-K MAGNITE, INC. For: Apr 07 | SEC filing · Form 8-K | SEC EDGAR | +1.10% | +2.46% | |
| Magnite to Announce First Quarter 2026 Financial Results on May 6, 2026 | Press release | GlobeNewswire | +0.34% | +1.93% | |
| Magnite and NOVA Entertainment Partner to Enable Programmatic Access to the Nova Retail Network | Press release | GlobeNewswire | +0.54% | -4.58% | |
| Form 10-K MAGNITE, INC. For: Dec 31 | SEC filing · Form 10-K | SEC EDGAR | +1.29% | +8.36% | |
| Form 8-K MAGNITE, INC. For: Feb 25 | SEC filing · Form 8-K | SEC EDGAR | +1.29% | +8.36% | |
| Magnite Reports Fourth Quarter and Full-Year 2025 Results | Press release | GlobeNewswire | +1.29% | +8.36% | |
| New York Times Advertising and Magnite Enter Strategic Collaboration for In-App Supply | Press release | GlobeNewswire | -1.17% | -1.34% | |
| Magnite to Participate in the Susquehanna 15th Annual Technology Conference | Press release | GlobeNewswire | +2.36% | +0.76% | |
| Magnite to Announce Fourth Quarter 2025 Financial Results on February 25, 2026 | Press release | GlobeNewswire | +3.18% | +2.46% | |
| MNTN and Magnite Turn Live Streaming’s Biggest Moments Into Performance TV for Growth Brands | Press release | GlobeNewswire | -2.01% | +2.73% | |
| Free Games, Smarter Ads: Magnite and PH?ND Redefine Gaming on Smart TVs | Press release | PR Newswire | -0.72% | +1.56% | |
| Magnite and Cognitiv Announce Deep Learning Integration for Real-Time Curation | Press release | GlobeNewswire | -0.72% | +1.56% |
Each reaction is the move the market actually made, measured from the news timestamp. Headlines link through to the MGNI section they belong to.
Where else MGNI is measured.
MGNI earnings → · Analyst actions → · SEC filings →
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How the numbers are made.
How is Magnite, Inc.'s median reaction calculated?
Every labeled MGNI news event is measured from its own timestamp: the last trade before the news is the base price, and the move is read at fixed horizons — 30 minutes of trading, then the close. The median across 626 events is what this page reports. Point-in-time, zero look-ahead: no event borrows information from a later one.
What counts as a positive reaction?
Any event whose price move is above zero at the horizon, relative to the last trade before the news timestamp. 57% of MGNI's measured events are up at 30 minutes; the rest close the window flat or negative.
How often is this page updated?
The news table refreshes automatically as new events are labeled and priced. The reaction medians are re-pulled in batches from the dataset — the figures here are as of 2026-09-21.
Does MGNI's past reaction predict its next one?
No. These are realized facts about past events, not forecasts. They describe a distribution — they say nothing certain about any future move.