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What happened with MGNI today?

Why it moved
Explains possible causes using the day’s news and filings
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The next thing that could change the call, and what to look for

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Uses news and trading volume to explain the day’s move and how it relates to the market.

Investment outlook

MGNI in three months: buy, wait or sell?

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  • Buy / Wait / Sell rating
  • 3-month target price
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Company

Company overview

Magnite helps publishers sell advertising space on streaming television, mobile apps and websites to advertisers and their agencies. Publishers send available ad opportunities to its platform, which requests bids from buyers and arranges ad placement when bids win. Magnite generally collects the buyer’s payment, keeps its fee and passes the balance to the publisher. Most revenue comes from these transactions, with fees typically tied to advertising spending rather than a fixed subscription.

Connected-TV advertising is its largest revenue source, followed by mobile advertising; desktop contributes a smaller share. SpringServe helps television publishers manage and sell their ads, while ClearLine lets agencies buy advertising directly through Magnite’s platform. Magnite does not own the advertising space or create the content around it.

Its earnings depend on advertising budgets, the prices advertisers pay and the share of spending it retains. Access to sought-after television advertising space relies on a limited group of large publishers, while buying activity is concentrated among a few major buyers. Google is both a competitor and a major partner through which a significant share of revenue is generated. Privacy rules also limit the data Magnite can use for advertising, requiring consent or another legal basis, advertising opt-outs and, in California, compliance with consumers’ universal deletion requests.

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Source: SEC filing

Red flags

Know what’s buried in MGNI’s filings before you buy

The risk section is the longest, dullest part of the filing. This keeps only what can really hurt you: where it hits, how hard, when it plays out.

Sorted into
  • Happening now
  • Could go wrong
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Moat

MGNI says it has a moat. Does it hold up?

Every company claims an edge. Each one is checked against hard numbers like margins and returns: which hold, and which line gives way first.

Each edge rated
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  • Moderate
  • Limited
  • Unproven

Related companies

  • Competition
  • Shared drivers
  • Supplier
  • Customer
  • PubMatic competes with Magnite to help publishers sell ads across connected TV, mobile and desktop, generally taking a share of the advertising value publishers earn. Watch its business with large publishers across those channels for signs of competition for Magnite's inventory supply.

  • The Trade Desk buys publishers' ad space through Magnite on behalf of advertisers, linking its customers' spending to Magnite's fees for helping publishers sell that space. Its role is on the buying side of the same transaction, rather than a competing route for publishers to sell ads.

  • Nexxen competes with Magnite for publishers and the ad space they sell, charging customers for technology that helps buy and sell digital ads. Watch its publisher-selling business specifically: Nexxen also serves advertisers, so its overall results cover more than this rivalry.

  • Google competes with Magnite in technology that helps publishers sell ads and in marketplaces matching ad buyers with sellers, while also collecting advertisers' spending on its own properties. Its advertising business on Google Network partners' properties is the part to distinguish from Search and YouTube when watching this rivalry.

  • The Walt Disney Company uses Magnite to sell streaming ad space through automated buying, making Disney an important publisher relationship for Magnite. The relevant business is selling streaming ads, not Disney's entertainment business as a whole.

  • Netflix uses Magnite's technology to offer ad space on its ad-supported streaming service to automated ad buyers. That makes the availability of Netflix's streaming ad inventory the relevant link to Magnite.

  • Comcast's FreeWheel competes with Magnite's SpringServe and its marketplace for selling ad space, seeking video publishers' advertising-technology business. FreeWheel's dealings with video publishers are the relevant competitive signal, rather than Comcast's broader business.

  • Teads competes with Magnite for media owners' ad space and advertisers' budgets, earning revenue when advertisers buy that space through its platform. Watch its media-owner relationships, including connected-TV and smartphone manufacturers, for where that competition reaches beyond website publishers.

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  • Viant and Magnite are exposed to advertising spending across connected TV, mobile and desktop: agencies and marketers pay Viant to help buy ads, while Magnite earns fees helping publishers sell them. Viant's customer campaigns can be reduced or canceled, making their spending a useful read on buying-side activity rather than proof of purchases through Magnite.

  • Applovin competes with Magnite for mobile-app ad space and advertiser spending, charging advertisers through Axon Ads Manager and helping app publishers sell inventory. This rivalry matters beyond CTV: mobile accounted for 37% of Magnite's revenue in the year ended December 31, 2025.

  • DoubleVerify and Magnite both depend on digital advertising activity: advertisers pay DoubleVerify to measure ad transactions, while Magnite earns fees from helping sell them. Watch DoubleVerify's measured transaction volume as a read on activity, not ad prices or Magnite's share of spending.

  • Criteo competes with Magnite for advertiser spending and media owners' business, but focuses more on ads tied to shopping. Its Retail Media business helps retailers sell ad space and brands drive sales, so watch that business separately from Magnite's broader publisher marketplace.

  • Taboola competes with Magnite for advertising budgets and publishers seeking ad revenue, collecting advertisers' payments for clicks, purchases or impressions and sharing revenue with the property showing the ad. Its publisher partnerships are a concrete place to watch competition for the digital properties Magnite also serves.

  • Meta Platforms competes for the same digital ad budgets as the publishers selling through Magnite, earning advertising revenue from marketers buying placements on its apps. Watch advertising in its Family of Apps business, including Facebook and Instagram, rather than its hardware business.

Agenda

todayTue, Oct 20

  1. Time to be announced

    NetFlix Inc earningsNFLX

    Netflix's report will offer a read on its ad-supported streaming business, which affects how much connected-TV ad inventory Magnite can make available through its technology.

in 8 daysWed, Oct 28

  1. 2:00 PMET

    Fed Interest Rate Decision

    Magnite’s interest expense on floating-rate debt can change as Fed decisions influence rates on its borrowing, affecting the cash left for operations and investment.

in 15 daysWed, Nov 4

  1. Time to be announced
    Major

    Magnite, Inc. earningsThis company

    CTV accounted for 48% of Magnite's 2025 revenue, and this report will show whether it can turn connected-TV ad sales into more contribution after traffic acquisition costs.

in 16 daysThu, Nov 5

  1. Time to be announced

    The Trade Desk, Inc. earningsTTD

    The Trade Desk's report will show whether advertisers are spending more or less through its platform, a signal about buyer demand connected to Magnite.

in 20 daysMon, Nov 9

  1. Time to be announced

    PubMatic, Inc. earningsPUBM

    PubMatic's report will show how this direct rival for publishers' ad business is faring in connected TV and mobile, markets Magnite also serves.