Magnite, Inc. (MGNI) Stock Price & How to Invest
Last updated July 2026
Short answer
You can invest in Magnite (MGNI) by buying shares or fractional shares at any major US broker, through an ad-tech or digital-media ETF that holds it, or as one holding in a thematic basket. Magnite is the world's largest independent sell-side advertising platform (SSP): it runs the marketplace and technology publishers use to sell ad inventory programmatically, earning a take rate on the ads that clear. It was formed from the 2020 merger of Rubicon Project and Telaria and is heavily levered to Connected TV (CTV) and streaming. The single biggest thing to understand is that this is a growth story tied to the shift of TV ad dollars to streaming: Magnite sits on the publisher side of that flow, so results rise and fall with CTV ad spend, publisher relationships, and take rates.
MGNI stock price
As of 2026-07-14, Magnite, Inc. (MGNI) last closed at $20.27, down 12.3% over the past year. Over the past 52 weeks it has traded between $11.20 and $26.52.
Prices are daily closing prices from Yahoo Finance and may be delayed. For the live quote, check your broker or Magnite, Inc.'s investor relations page. Walnut is informational, not investment advice.
What does Magnite, Inc. (MGNI) do?
Magnite is the largest independent omni-channel sell-side advertising platform, or SSP. Publishers plug their inventory into Magnite's technology to sell ads programmatically across formats and channels, and Magnite keeps a take rate on the ads that clear. It reports its business in two broad areas: CTV, which covers streaming and Connected TV inventory and is now the largest and fastest-growing part of the company, and DV+, which covers desktop, mobile, and web display and video. Being independent is central to the pitch: unlike Google or Amazon, Magnite does not own competing media, which it argues lets publishers trust it without conflicts of interest.
Magnite was formed in April 2020 from the merger of Rubicon Project and Telaria, and it later added scale in streaming through the 2021 acquisition of SpotX and the SpringServe ad server. In mid-2026 the story centers on CTV: Magnite is the sell-side partner for major media owners including Netflix, Disney, Roku, and Warner Bros. Discovery, and it has emphasized its role in helping Netflix expand its ad tier across markets and its position as a preferred programmatic partner for the Roku Exchange. On the buy side, The Trade Desk is a demand-side platform (DSP) that buys through SSPs like Magnite, so the two are more complementary than direct rivals. The investment picture combines strong CTV growth with the reality that this is still a mid-cap ad-tech company whose revenue can be lumpy, sensitive to advertising cycles, and pressured on take rates.
What's driving Magnite, Inc. (MGNI)?
1. CTV and the shift of TV dollars to streaming
Magnite's biggest lever is Connected TV, now its largest and fastest-growing segment. As advertising budgets move from traditional TV to ad-supported streaming, Magnite sits on the sell side of that flow, monetizing premium streaming inventory. Continued growth in streaming ad spend, more ad-supported tiers, and rising programmatic penetration of CTV are the core drivers of the bull case for the stock.
2. Marquee publisher relationships
Magnite has direct relationships with leading media owners including Netflix, Disney, Roku, and Warner Bros. Discovery. It has supported Netflix's ad-tier expansion across markets, extended its multi-year Disney partnership, and positioned as a preferred programmatic partner for the Roku Exchange. These anchor relationships give Magnite access to scarce premium streaming supply, which is the asset advertisers most want to reach.
3. Independence as a wedge against walled gardens
Magnite argues its value is being the largest independent SSP: unlike Google or Amazon, it does not own competing media, so publishers can use it without conflicts of interest. As the industry debates concentration and transparency in ad tech, that neutral, publisher-aligned position is a differentiator. It also lets Magnite serve as a single omni-channel partner across CTV, display, video, audio, and mobile.
4. Platform and automation investments
Magnite continues to invest in its technology stack, including the next-generation SpringServe CTV ad server and newer automation and agentic-advertising layers meant to connect buyers more efficiently to its supply. Deeper integration of its streaming ad server and SSP aims to improve fill and margins on premium inventory. Whether these investments lift take rates and stickiness, rather than just costs, is a key thing to watch.
What are the risks to Magnite, Inc. (MGNI)?
The central risk is that Magnite is a mid-cap ad-tech company whose revenue is tied to advertising cycles: ad budgets are among the first things cut in a slowdown, so results can be lumpy and CTV growth can decelerate. Take-rate and margin pressure is a structural concern because large publishers and buyers can push for better economics. Customer concentration matters: a big share of growth leans on a handful of relationships such as Netflix, Roku, and Warner Bros. Discovery, so losing or repricing one would sting. The company competes against deep-pocketed walled gardens (Google, Amazon) and other SSPs (PubMatic, Index Exchange, OpenX), and publishers can build in-house or route inventory elsewhere. Political ad spend can inflate then deflate year-over-year comparisons, and the stock has historically been volatile around quarterly results.
How is Magnite, Inc. (MGNI) valued? (approximate, Jul 2026)
A simple financial snapshot. These are approximations and refresh quarterly; for current figures see Magnite, Inc.'s investor relations page or your broker.
- Revenue (TTM): In the roughly high-hundreds-of-millions range annually, with quarterly revenue growing at a modest overall rate as strong CTV offsets slower DV+
- CTV growth: CTV is the largest and fastest-growing segment, generally growing well ahead of the total company when political spend is excluded
- Profitability / adjusted EBITDA: GAAP results are thin or breakeven at times; management emphasizes non-GAAP EPS and adjusted EBITDA, which have been positive
- Balance sheet / debt: Carries term-loan debt from prior acquisitions (SpotX era); has worked to reduce leverage and generate free cash flow
- Market cap: Mid-cap; valued largely on CTV growth and forward EBITDA rather than trailing GAAP earnings
- Analyst view: Coverage is generally constructive on the CTV thesis but flags margin and competition risks; targets vary widely
Figures are qualitative and tied to the asOf date; verify live numbers before acting. Magnite trades more on CTV growth, take rates, and adjusted EBITDA than on trailing GAAP earnings, which have at times been thin, so a simple P/E can be misleading. Because it is a mid-cap ad-tech name, results and sentiment can swing sharply around quarterly reports and shifts in the advertising cycle.
Who competes with Magnite, Inc. (MGNI)?
Other independent SSPs
PubMatic, Index Exchange, and OpenX are the closest direct rivals, all competing to help publishers monetize inventory across display, video, mobile, and CTV. Magnite positions itself as the largest independent SSP, but these players compete on take rates, integrations, and access to premium streaming supply, and publishers often work with more than one at once.
Walled gardens and tech giants
Google and Amazon (along with Meta) own both massive media inventory and their own ad technology, giving them scale and data advantages Magnite cannot match. Magnite's core pitch is independence: it does not own competing media, so publishers can use it without the conflicts of interest that come with the walled gardens' integrated stacks.
Buy-side and ecosystem context
The Trade Desk is a demand-side platform (DSP) that represents advertisers and buys inventory through SSPs like Magnite, so the two are more complementary than direct competitors: one sits on the sell side, the other on the buy side. Understanding this SSP-versus-DSP split is key to seeing where Magnite fits in the programmatic advertising chain.
How to invest in Magnite, Inc. (MGNI)
There are three common ways to get MGNI exposure. Buy shares (or fractional shares) directly at any major broker. Hold an ETF that includes it, which spreads the position across many companies. Or build it into a focused thematic basket, so MGNI sits alongside other stocks that express the same thesis.
Walnut takes the basket route. Describe a thesis where MGNI fits (for example “AI infrastructure” or “dividend-growth large-caps”) and the AI proposes 5 to 6 constituents with target weights. You review the plan and fund it through your own broker when you're ready.
The bottom line on Magnite, Inc. (MGNI)
Magnite is a focused bet on the shift of TV advertising to streaming, seen from the publisher (sell) side. It rewards CTV ad-spend growth and its Netflix, Disney, and Roku relationships, but it is a volatile mid-cap ad-tech name whose take rates and margins can compress.
Build a basket around MGNI with Walnut
Use Magnite, Inc. as one constituent in a thematic basket Walnut's AI helps you assemble. Describe a thesis you believe in, the AI proposes the holdings and weights, and you approve before any broker order.
FAQ
Is MGNI a good stock to buy right now?
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That depends on your goals, time horizon, and risk tolerance, and this is not investment advice. The bull case is that Magnite is the largest independent SSP levered to the fast-growing shift of TV ad dollars to streaming, with anchor relationships like Netflix, Disney, and Roku. The bear case is that it is a volatile mid-cap ad-tech company facing take-rate pressure, customer concentration, and deep-pocketed walled-garden competition. Weigh both against your portfolio.
What does Magnite actually do?
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Magnite runs a sell-side advertising platform, or SSP: the marketplace and technology that publishers use to sell their ad inventory programmatically. It connects that supply to buyers and earns a take rate on the ads that clear. It works across formats and channels but is most focused on Connected TV and streaming, plus desktop, mobile, and web display and video in its DV+ business.
What is the difference between an SSP and a DSP?
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An SSP (supply-side platform) like Magnite represents publishers, helping them sell ad inventory for the best price. A DSP (demand-side platform) like The Trade Desk represents advertisers, helping them buy inventory efficiently. The two sit on opposite ends of the programmatic chain and are largely complementary: a DSP buys through SSPs, so The Trade Desk is more a partner than a direct competitor to Magnite.
Why is Magnite so focused on Connected TV?
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Connected TV, or CTV, is where advertising budgets are moving as viewers shift from traditional TV to ad-supported streaming. It is now Magnite's largest and fastest-growing segment. Magnite is the sell-side partner for major streaming publishers including Netflix, Disney, Roku, and Warner Bros. Discovery, giving it access to premium streaming inventory that advertisers increasingly want to reach.
Why is MGNI stock so volatile?
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Magnite is a mid-cap ad-tech company whose revenue is tied to advertising budgets, which are cyclical and can be cut quickly in a downturn. Growth leans on CTV and a handful of large publisher relationships, so quarterly results can be lumpy and can swing on take rates, customer wins or losses, and political ad spend. That combination makes the stock move sharply around earnings and macro news.
Does Magnite pay a dividend?
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Magnite does not pay a dividend. Like most growth-oriented ad-tech companies, it reinvests cash into its platform and technology and has used cash flow to pay down debt from prior acquisitions rather than to return income to shareholders. Investors in MGNI are generally there for potential growth in the shift to streaming advertising, not for income.
Who are Magnite's main competitors?
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Its closest direct rivals are other independent SSPs such as PubMatic, Index Exchange, and OpenX, which also help publishers monetize inventory. It also competes for ad budgets with walled gardens like Google and Amazon that own both media and ad technology. The Trade Desk, a buy-side DSP, is part of the ecosystem but is largely a complement rather than a direct competitor.
How does competition from Google and Amazon affect Magnite?
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Google and Amazon own huge media inventory plus their own ad tech, giving them scale and data advantages Magnite cannot match. Those walled gardens can capture ad budgets inside their own ecosystems. Magnite's counter is independence: because it does not own competing media, publishers can use it without conflicts of interest. Still, the concentration of ad spending in a few tech giants is a real long-term risk.
How can I get exposure to Magnite through an ETF?
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MGNI appears in various ad-tech, digital-media, communication-services, and small- or mid-cap growth ETFs, where it sits among other advertising and internet names. ETF exposure spreads single-stock risk across many holdings but dilutes how much any Magnite move affects you. Always check a fund's holdings and weighting before assuming meaningful exposure to Magnite specifically.
What are the main risks of investing in MGNI?
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The main risks are advertising-cycle sensitivity, since ad budgets are cut fast in downturns; take-rate and margin pressure from large publishers and buyers; and customer concentration, given how much growth leans on relationships like Netflix, Roku, and Warner Bros. Discovery. It also faces walled-garden competition from Google and Amazon and rival SSPs, and as a mid-cap it can be volatile around earnings. Political ad spend can also distort year-over-year comparisons.
Walnut is informational, not investment advice. Financial figures on this page are approximations; always verify current numbers with Magnite, Inc.'s investor relations page or your broker before making investment decisions.