Magnite today reported its first quarter 2026 financial results, with connected television advertising crossing a meaningful threshold: for the first time, CTV contribution ex-TAC now accounts for 51% of the company's total net revenue metric, up from 43% in the same period of 2025. The figures, announced on May 6, 2026, mark a sustained acceleration in the shift of programmatic spending toward streaming platforms - a dynamic that carries direct implications for advertisers, agencies, and ad tech buyers tracking where premium video inventory is increasingly transacted.

Total contribution ex-TAC reached $160.9 million in Q1 2026, up 10% year-over-year and at the high end of the company's own guidance range of $157 to $161 million. Revenue on a GAAP basis came in at $164.4 million, a 6% increase from $155.8 million in Q1 2025. Gross profit was $104.0 million, up 12%. The company swung to net income of $4.4 million, or $0.03 per diluted share, compared with a net loss of $9.6 million, or $0.07 per diluted share, in Q1 2025.

Adjusted EBITDA reached $42.9 million, a 16% gain year-over-year and representing a 26.6% margin against contribution ex-TAC. That compares with $36.8 million and a 25.2% margin in the prior-year quarter. Non-GAAP earnings per share came in at $0.13, up from $0.12 in Q1 2025.

CTV's dominance sharpens

The CTV figure is where the structural story sits. According to the company's earnings presentation, CTV contribution ex-TAC reached $82.3 million in Q1 2026 - a 30% increase year-over-year from $63.2 million in Q1 2025. That 30% growth rate is notable because it arrives after a Q4 2025 period in which CTV contribution ex-TAC grew 20% year-over-year, or 32% excluding political advertising. The sequential comparison suggests the CTV growth trajectory has not slowed materially heading into 2026.

According to Magnite CEO Michael G. Barrett, speaking in the company's earnings release: "Magnite once again exceeded total top and bottom line expectations, with growth paced by CTV at 30%. Our CTV success is broad based and supported by publisher, agency and DSP momentum. Buyer marketplaces coupled with ClearLine, live sports, and strong SMB trends continue to support the growth acceleration in CTV."

The channel breakdown tells the full picture. CTV represented 51% of total contribution ex-TAC in Q1 2026, with mobile contributing 34% at $55.4 million and desktop 15% at $23.3 million. In Q1 2025, those same proportions were 43% CTV, 40% mobile, and 17% desktop. Mobile declined 5% year-over-year in absolute terms, falling from $58.0 million to $55.4 million, while desktop fell modestly from $24.6 million to $23.3 million.

DV+ performance and the Google antitrust context

The DV+ segment - covering display, video, mobile, and desktop web inventory outside of CTV - produced contribution ex-TAC of $78.6 million, a 5% decrease year-over-year. That figure nonetheless exceeded the high end of the company's own guidance range of $76 to $78 million. Barrett noted in the earnings release that early positive signs are emerging: "We are starting to see some improvements in key areas of DV+, namely mobile app and commerce media partners."

Advertisers monitoring DV+ have a particular reason for attention beyond the quarterly movement. Barrett's statement in the earnings release includes a forward-looking reference to antitrust proceedings: "We also remain ready in our DV+ business, as it relates to pending remedies related to the Google trial." That is a direct reference to the US Department of Justice antitrust case, in which Google faces structural remedy demands following a court ruling that it monopolized publisher ad server and ad exchange markets. Magnite is among the independent SSPs that filed a follow-on antitrust lawsuit against Google, and the company's DV+ business is positioned to capture incremental open-market spend if court-ordered remedies alter how AdX and DFP operate.

The European Commission separately fined Google 2.95 billion euros in September 2025 for conduct spanning 2014 to 2025, concluding the company abused dominant positions in publisher ad servers and programmatic ad buying. Both proceedings remain active as of this reporting period.

Balance sheet and cash dynamics

The balance sheet tells a more complex story than the income statement alone suggests. Cash and cash equivalents fell sharply - from $553.4 million at December 31, 2025 to $184.6 million at March 31, 2026. Total debt decreased proportionally, from $556.1 million to $350.8 million over the same period. Net debt therefore rose from $2.8 million at year-end 2025 to $166.2 million at the end of Q1 2026.

According to the company's cash flow statement, the principal driver of the cash reduction was a $205.1 million repurchase of Convertible Senior Notes, alongside $14.5 million in treasury stock purchases and $14.6 million in taxes paid related to net share settlement. Capital expenditures totaled $19.6 million in the quarter, broken into $9.4 million in property and equipment purchases and $3.7 million in capitalized internal-use software development costs. Operating cash flow - defined by Magnite as Adjusted EBITDA less capital expenditures, excluding working capital changes - came in at $23.3 million, up from $18.2 million in Q1 2025.

The net leverage chart in the company's presentation shows a long downward trend from a peak of 6.2x in Q2 2021 to 0.0x in Q4 2025, with Q1 2026 ticking back up to 0.7x following the debt repurchase and associated cash drawdown. The movement is arithmetic - debt was retired using cash on hand, increasing the net debt figure - rather than a reflection of deteriorating operating performance.

On the intangibles side, the remaining amortization schedule for acquired intangibles is $5.5 million in 2026, $2.5 million in 2027, $1.4 million in 2028, and $0.5 million thereafter, for a total of $9.8 million. That declining tail is material because amortization of acquired intangibles fell from $7.4 million in Q1 2025 to $2.6 million in Q1 2026 - a $4.8 million non-cash tailwind to non-GAAP income that does not appear in the GAAP results. Non-GAAP income for the quarter was $20.0 million, up from $17.9 million.

Geography

The revenue split by geography remained stable year-over-year. US revenue was $123.3 million, representing 75% of total, up from $116.8 million in Q1 2025. International revenue was $41.1 million, or 25% of total, up from $39.0 million. The consistency in geographic distribution suggests CTV growth is primarily driven by US market activity, where streaming infrastructure and programmatic deal-making are most mature.

AI integration moves from narrative to product

Barrett's comments include a substantive reference to AI that goes beyond typical quarterly positioning. According to the earnings release: "AI is also becoming foundational in almost every area of our business, from agentic buying, to creative development, to inventory curation, to workflow. It is powering greater productivity throughout our ecosystem and company."

That statement follows a documented sequence of product deployments. Magnite launched its first seller agent inside SpringServe in December 2025, testing AI-driven advertising transactions with Scope3 as the buyer agent counterpart. Then, on April 27, 2026, the company expanded AI capabilities across SpringServe and introduced a buyer agent tested with Disney Advertising, Kepler, MiQ, and Spectrum Reach. Three specific AI-supported capabilities were added to SpringServe's mediation layer: anomaly detection to flag shifts in auction performance, demand path optimization to improve how demand flows through the platform, and dynamic pricing that adjusts to changing market conditions rather than relying on static floor configurations.

For buyers, the agentic buying framing carries operational weight. If agent-to-agent advertising transactions mature to scale, they would alter the interface between buy-side systems and the sell-side platform - potentially reducing reliance on manual deal configuration and IO-based processes that currently govern much of premium CTV. The timeline for that shift remains unclear. What is clear from Q1 results is that Magnite is embedding these capabilities into its production infrastructure, not running them as isolated pilots.

Partner wins and their advertiser implications

The Q1 2026 earnings presentation enumerates a set of recent commercial wins that illustrate the practical scope of Magnite's supply-side deployment. Each carries specific meaning for advertisers and agencies.

Walmart Connect launched Connect Select, using Magnite as an SSP partner to provide scalable, data-driven access to premium CTV and omnichannel inventory. The significance of that deal extends beyond a simple supply agreement. Connect Select pairs Magnite's programmatic infrastructure with Walmart's first-party shopper data, giving brands audience targeting grounded in confirmed retail transaction history rather than probabilistic modelling, and attribution tied to actual Walmart purchase events.

Roku introduced Roku Curate, powered in part by Magnite SpringServe, simplifying CTV targeting by pairing Roku platform insights with third-party purchase data. Hearst News named Magnite a preferred partner for high-impact web and CTV formats and integrated SpringServe into its ad operations. Expedia Group Advertising partnered with Magnite to let brands reach high-intent travel audiences across premium off-platform video and display inventory, using Expedia's first-party data as the targeting layer.

AMC Global Media expanded its Magnite partnership to provide direct programmatic access across linear networks, FAST channels, and AMC+ streaming service - making AMC among the first programming companies to offer its linear television inventory programmatically. The deal uses ClearLine as the single entry point, collapsing the operational divide between linear and streaming buying into one programmatic workflow.

Genius Sports integrated real-time sports data into Magnite's ClearLine, enabling advertisers to trigger programmatic deals during live high-engagement moments. That is a technically specific development: rather than simply running pre-booked campaigns against live sports inventory, buyers can now configure deal logic that activates in response to live event data signals - a goal moment, a timeout, a score threshold. New York Times Advertising designated Magnite's DV+ as the preferred platform for mobile in-app private marketplace deals. MNTN partnered with Magnite to give performance advertisers direct access to premium live sports, breaking news, and high-impact ad formats across major streaming platforms.

Live sports and ClearLine

Live sports appears repeatedly in Magnite's Q1 narrative, consistent with the company's November 2025 launch of Live Scheduler within SpringServe. That tool established a standardized framework for how media owners and advertisers transact on live streaming content - sharing event name, timing, sport, league, broadcaster, and concurrency estimates ahead of live events so buyers can plan and pace campaigns more precisely. Roku was among the first streaming platforms to use Live Scheduler.

The Genius Sports integration extends the infrastructure in a different direction. Live Scheduler improves pre-event planning and delivery management. The Genius Sports real-time data feed into ClearLine creates a dynamic trigger layer operating during the event itself. Together, these capabilities address two distinct operational challenges that have historically made programmatic live sports buying less efficient than direct IO-based placements.

Q2 2026 and full-year guidance

According to the Q1 2026 earnings presentation, Magnite projects Q2 2026 total contribution ex-TAC between $177 million and $181 million. CTV contribution ex-TAC is expected to come in between $90 million and $92 million, while DV+ is expected between $87 million and $89 million. Adjusted EBITDA operating expenses are projected between $115 million and $117 million.

For the full year 2026, the company reaffirmed total contribution ex-TAC growth of at least 11% and Adjusted EBITDA percentage growth in the mid-teens. Two items were raised from prior guidance: Adjusted EBITDA margin was lifted to at least 35.5% from greater than 35%, and free cash flow growth was raised to the mid 30% range from greater than 30%. Capital expenditure guidance was reaffirmed at approximately $60 million.

If Q2 guidance is achieved at the midpoint of $179 million in contribution ex-TAC, that would represent roughly 16% growth year-over-year over the Q2 2025 result of approximately $154 million. That acceleration - if it materializes - would confirm that the Q1 CTV performance was not an anomaly tied to specific partner activity but a reflection of sustained structural demand.

What the figures mean for the wider market

For programmatic practitioners, the Q1 2026 results answer a question that was open at the start of the year: whether the 30%-plus CTV growth Magnite recorded in Q4 2025 (excluding political) was a structural shift or a temporary flush of deferred political budgets moving into streaming. The Q1 2026 figure of 30% CTV growth, in a quarter with no political advertising activity, suggests the underlying demand is genuine.

The DV+ trajectory carries equal weight. A 5% decline year-over-year, combined with management commentary pointing to early improvement in mobile app and commerce media specifically, suggests the segment's weakness is not uniform. Commerce media - a category that encompasses retail data-enriched programmatic deals - is growing as a share of DV+ activity even while legacy open-market desktop and mobile web segments contract. That distinction matters for buyers operating in the mid-market, where DV+ inventory remains a core channel for reach at scale.

Finally, the balance sheet move - the aggressive retirement of Convertible Senior Notes in Q1 - reduces future interest expense and removes the conversion overhang from Magnite's capital structure. According to the reconciliation tables, interest expense, net, was $4.6 million in Q1 2026 versus $5.2 million in Q1 2025. The reduction is modest in Q1 but the directional effect of retiring $205 million in convertible debt will be more visible in subsequent quarters.

Timeline

Summary

Who: Magnite (NASDAQ: MGNI), the largest independent sell-side advertising platform, alongside publisher and advertiser partners including Walmart Connect, Roku, AMC Global Media, Expedia Group Advertising, Hearst News, Genius Sports, New York Times Advertising, and MNTN.

What: First quarter 2026 financial results showing total contribution ex-TAC of $160.9 million (up 10% year-over-year), CTV contribution ex-TAC of $82.3 million (up 30%, now 51% of total), net income of $4.4 million versus a prior-year net loss of $9.6 million, and Adjusted EBITDA of $42.9 million (up 16%, 26.6% margin). Full-year 2026 guidance was raised on Adjusted EBITDA margin to at least 35.5% and free cash flow growth to the mid-30% range.

When: Results announced today, May 6, 2026, covering the three months ended March 31, 2026. The company is hosting a conference call on May 6, 2026 at 1:30 PM PT / 4:30 PM ET.

Where: Magnite is headquartered in New York City, with offices in Los Angeles, Denver, London, Singapore, and Sydney. Results cover global operations, with US revenue at 75% of total ($123.3 million) and international revenue at 25% ($41.1 million).

Why: The results matter for the programmatic advertising market because they confirm that independent CTV supply-side infrastructure is growing at a sustained 30% pace, with streaming now representing the majority of Magnite's contribution ex-TAC for the first time. For buyers, this signals deepening programmatic supply in CTV, an expanding set of data-enriched deal structures through retail media and first-party data partnerships, and a company explicitly positioning its DV+ business to benefit if Google adtech antitrust remedies alter competitive dynamics in the open-market display and video segment.

Share this article
The link has been copied!