Q3 2026 earnings call, November 5, 2026: Ad engine accelerates, margins hit records, and Spark opens a new front

Unity Software reported a third quarter that management itself acknowledged was an outsized step change rather than a steady trend. Strategic revenue reached $597 million, up 59% year-over-year. Adjusted EBITDA was $257 million, up 134% year-over-year, at a 41% margin that was 1,800 basis points higher than a year earlier. The company also posted its first quarter of GAAP profitability since its IPO, with net income of $122 million and a 20% net margin. Free cash flow was a record $220 million, leaving $2.65 billion of cash. Unity plans to repay the convertible debt due November 15 from the balance sheet.

Vector's Beat Was a Surprise to Management Too

The central fact of the quarter is that Vector, Unity's AI-driven ad engine, grew 126% year-over-year and 40% sequentially, double the roughly 20% sequential growth the company had guided to. Strategic Grow revenue rose 90% year-over-year to $432 million and now makes up 69% of total revenue. CFO Jarrod Yahes did not dress up the miss in forecasting. Asked by Vasily Karasyov of Cannonball whether the guidance philosophy had changed, he called the result "a significant unforeseen step change in the growth that we experienced" and said the company will keep guiding to what it can see, which means similar upside surprises could recur.

The sourcing of the growth matters for quality. CEO Matthew Bromberg stated that Vector's acceleration came "primarily a result of a greater volume of installs and higher player values, not changes in take rate," and he told Morgan Stanley's Matthew Cost that take rate is "not a lever that we use." Management attributed the quarter to model updates, infrastructure efficiency gains and continued traction for the Day 28 ROAS optimizer. Bromberg described the Day 28 product as "table stakes" for operating at scale and said a long list of comparably fundamental enhancements remains. He declined to detail them, citing competitive concerns and saying a typical quarter brings 6 to 10 significant product changes.

Advertiser breadth improved as well. Vector advertiser accounts rose 27% sequentially in a single quarter. Yahes was careful to add that 90% of the quarter's growth came from existing advertisers, so the new cohort has barely begun to spend, which management frames as a tailwind for coming quarters.

Guidance assumes the pace moderates but stays high. Fourth quarter Vector sequential growth is guided to 21% to 23%, and Grow revenue growth to 105% to 107% year-over-year. Total strategic revenue is guided to $683 million to $691 million, up 65% to 67%, which would be a seventh consecutive quarter of accelerating growth. Bromberg was blunt that investors should not extrapolate the Q3 pace: "Every quarter is not going to be a 40% quarter." His model is incremental growth punctuated by step changes whose timing he cannot predict. Management also pointed out that Vector is only 7 quarters old, and Bromberg said he is not worried about durability, given what he sees in the product road map.

Runtime Data: A Moat Still Being Built

The most useful disclosure on data came in response to Deutsche Bank's Benjamin Black. Opt-in for sharing runtime data on newly created projects remains above 90%, but among Vector's top 1,000 spenders only 30% currently share runtime data. That leaves substantial room for model improvement if that share rises, though it also shows the data advantage is not yet fully exploited among the largest customers. Bromberg argued that the runtime gives publishers real-time feedback on what players are bored with or willing to spend on, calling it "a unique advantage that exists nowhere else" and a long-term moat. He also framed an opening beyond user acquisition, helping publishers raise engagement and lifetime value, though he offered no revenue sizing or timeline for that. He cited mobile game advertising as a market of at least $40 billion growing at double digits.

Coding Agents and Spark: The Top-of-Funnel Push

On the Create side, the strategic emphasis is on widening the funnel. Unity opened its authoring platform to coding agents and a command line interface in August, and Bromberg said Creator daily active users are up 25% since early August. The company is model agnostic, which it presents as protection against vendor lock-in. Bromberg also described a commercial benefit that is easy to miss: when a game is built agentically on Unity, services including Vector are bound at the moment of creation, without the SDK downloads and documentation work that previously separated authoring from ad monetization. Management cautioned against linking the 25% DAU gain to the 27% advertiser gain, calling them separate numbers.

Create revenue itself remains modest. Strategic Create grew 11% year-over-year to $165 million, helped by ARPU and strength in China. Fourth quarter growth is guided to just 4% to 6%, and full-year 2026 growth is 9%, with similar annual growth expected going forward. The AI-driven creation thesis therefore has not yet shown up in Create revenue, a point analyst Alec Brondolo of Wells Fargo effectively probed when asking where the inflection appears in the numbers. Bromberg did not offer a direct answer, pointing instead to the flywheel in which more games raise the need for discovery and drive ad revenue.

Spark, announced in October with Google, is a no-code, browser-based collaborative creation platform. It enters closed beta this year and launches fully in 2027. Bromberg positioned it against the narrative that frontier AI labs make game engines obsolete, saying Unity has "no interest in the very casual end of this market" and is aiming at higher-quality games built by creative people who are not strong coders. The partnership is nonexclusive, so Spark will be distributed beyond Google over time. Bromberg suggested the eventual audience could be 10x to 30x the size of the professional creator base, though that is aspiration rather than a forecast.

Pricing is undecided, but the outline is freemium with daily allocations, consumption-based charges and advertising. Yahes highlighted two economic levers. First, prompts and queries in the creation process can be used to fine-tune models and lower token costs. Second, use of Unity Asset Store assets in consumption would carry "100% flow-through margin" to Unity, and the store could also support upsell from free to paid tiers. Advertising in Spark would sit outside the mediated ecosystem, giving Unity owned-and-operated inventory. Management gave no compute cost or margin figures for Spark, so the incremental margin profile remains unquantified. Bromberg also acknowledged consumer backlash against AI-generated art and said the Asset Store's human-made content is meant to counter generic output.

Margin Structure and the Path to Net Income

Adjusted gross margin improved 200 basis points sequentially on cloud cost leverage. Adjusted R&D, sales and marketing, and G&A were each flat to down in dollar terms from Q2. Adjusted sales and marketing fell $22 million sequentially to 12% of revenue, primarily owing to the sale of Supersonic. Fourth quarter adjusted EBITDA is guided to $290 million to $295 million, a 42% margin, implying another 100 basis points of expansion.

Yahes gave modeling inputs for the bridge to net income. Amortization is expected to fall to $50 million in Q4 from $77 million in Q3, then to $15 million per quarter in 2027. Stock compensation is expected at $75 million per quarter in 2027, with an effective tax rate of 5% to 10%. Yahes noted that GAAP profitability could bring eligibility for major equity indices, a broader institutional investor base and credit rating upside. He also said the $2.65 billion cash balance gives flexibility for product investment, M&A and shareholder returns, though no specific capital return plan was announced. Non-strategic Grow revenue is $5 million in Q4 and goes to zero in 2027.

Assessment

The numbers are exceptional, but the quality of the forward view depends on a young product maintaining its model-driven gains, and management itself called the Q3 magnitude unforeseen. Some questions went unanswered, including the specifics of the product pipeline, Spark's cost structure and where the AI creation boom will first lift Create revenue. The unpredictability of the beats cuts both ways: it supports upside to guidance, but it also means the underlying drivers are less forecastable than the steady margin story suggests.