Shares surged nearly 10% after the close on November 4 as Magnite delivered a quarter that beat expectations across the board, raising the question of whether the ad-tech firm's streaming TV business is entering a sustained growth phase or simply riding a political spending windfall.
• Revenue and Earnings Crushed the Street's Numbers
Magnite reported Q3 revenue of $204.2 million, up 14% year-over-year. That topped the $190.16 million Wall Street consensus by more than 7%. Earnings per share came in at $0.33, beating the $0.26 estimate by nearly 27%.
Adjusted EBITDA hit $83.4 million, growing 46% at a 42% margin. A beat this wide — on both revenue and profit — signals the company is not just growing but converting that growth into cash at an accelerating rate.
• Streaming TV Ads Are Now the Majority of the Business — and Still Accelerating
Connected TV (CTV) contribution grew 39% to $105.4 million , blowing past the company's own guidance of $98–$100 million.
CTV now represents 53% of total contribution ex-TAC — Magnite's preferred measure of revenue after paying content partners. That's up from 45% a year ago. Crucially, management has said this growth rate doesn't yet reflect mass small-business advertiser inflows or a large-scale shift of live sports spending to streaming — two catalysts still mostly ahead.
• The Full-Year Guidance Raise Tells the Bigger Story
Magnite raised its 2026 outlook to approximately 17% contribution ex-TAC growth, approximately 30% adjusted EBITDA growth, and above 60% free cash flow growth — all materially above prior targets. Full-year political ad spending is now expected at nearly three times the company's initial forecast. Investors should note that political dollars are inherently cyclical and will evaporate in 2027, meaning the organic CTV trend underneath must hold for the stock's new price to stick.
• Profitability Leverage Could Make or Break the Valuation
Management has said that once revenue growth exceeds 10%, roughly 80% of each incremental dollar flows through to EBITDA. With growth now running at 14–17%, that math is working powerfully in Magnite's favor. But the legacy desktop and mobile segment (called DV+) grew only 5% in Q3 and remains under secular pressure. If CTV growth normalizes post-election, shareholders will need to see proof that the profit engine can sustain itself without political tailwinds.