Viant Technology (DSP) Q3 2026 earnings review
Viant’s ad income rises 27%, but its sales slow down
Viant, which buys streaming-TV and online ads for brands, is lifting its own income faster while headline sales lose pace. Revenue rose 29% from a year ago, after 34% last quarter. Contribution, the revenue Viant keeps after paying for ad space, climbed 27%, its third straight speed-up. Chief executive Tim Vanderhook credits the company’s data and AI tools.
| Contribution growth averaged over two years (by our math) | 19% a year 27% from a year ago, against a weak 2025 quarter |
|---|---|
| Revenue | $110.4M +29% from a year ago |
| Profit before interest, tax, depreciation and stock pay | $19.8M +24% from a year ago |
| Fourth-quarter outlook | New middle of the ranges: revenue +20%, contribution +26% |
⚖️ Verdict: 🟢 Bullish
The story got better because the fourth-quarter plan keeps contribution growing about 26%, against a tougher comparison than this quarter’s. That argues against the worry that budgets moving from a rival explained the rebound. One caution: the same plan has revenue growth dropping to about 20%, and Viant did not explain the gap.
The question now is why revenue slows while contribution does not. Either more clients now pay Viant only a fee, which shrinks reported revenue alone, or a few large clients are buying less. The quarterly filing’s customer-concentration note will tell.
🐂 Bull Case
Contribution Growth Sped Up for a Third Quarter
Contribution is the revenue Viant keeps after it pays media owners for ad space and data. “Our ongoing momentum can be directly attributed to our recent evolution into a comprehensive advertising intelligence company”, chief executive Tim Vanderhook said.
Contribution reached $67.2 million, above the top of the ad-buying platform’s August range. Growth has risen every quarter this year.
- First quarter: up 18%
- Second quarter: up 24%
- Third quarter: up 27%
- Fourth-quarter outlook: up about 26%
His explanation is hard to check, because Viant publishes no sales figure for its data products. The comparison also helped: a year ago contribution rose only 12%, after political ads faded and one seasonal client left.
So we averaged growth over two years. By our math that pace was 19% a year this quarter and rises to 22% in the fourth-quarter plan. That suggests the rebound is more than an easy comparison.
What to watch: fourth-quarter contribution, due early next year. By our math the group needs about $81.9 million to grow faster than it did this quarter. A result above that level would show the rebound survived a harder comparison.
Streaming TV Ads Still Outgrow the Rest
Connected TV, or CTV, means ads shown inside streaming services on a television. It makes up over half of spending on the platform, and Viant calls itself “purpose-built for CTV”.
CTV spending rose nearly 40% from a year ago and reached a record, Viant said. That is down from nearly 50% last quarter. Over 80% of it again went through Direct Access, Viant’s programme for buying that ad space.
The slower rate matters because CTV carries the growth. By our math, total spending through the platform rose at most about 29%, so the business outside television expanded far more slowly.
What to watch: the CTV growth rate next quarter. A second step down would mean the main source of Viant’s expansion is weakening.
Costs Outside Acquisitions Rose Slower Than Contribution
Viant measures profit as adjusted EBITDA: earnings before interest, tax, depreciation, stock pay and deal costs. Finance chief Larry Madden said the outlook shows “significant operating leverage even as we integrate TVision and Waymark”, two firms the group bought this year.
Excluding acquisitions, running costs such as pay and overhead rose 19%, Viant said, while contribution climbed 27%. The acquisitions consume that gain for now.
- Running costs with acquisitions: up 28%
- Acquired businesses’ cost, by our math: about $3.4 million, or 3 percentage points of revenue
- Profit share of contribution: 29.5%, against 30.2% a year ago
What to watch: the fourth-quarter profit share, which Madden puts at about 39%. A result near last year’s 38% would mean the acquired firms still take all of the gain.
🐻 Bear Case
Viant’s Plan Slows Revenue Growth to About 20%
“We delivered strong growth in Q3 and we are carrying that momentum into Q4”, finance chief Larry Madden said. His revenue plan says something different. The middle of his fourth-quarter range points to revenue growth of about 20%. That follows 29% this quarter and 34% in the one before.
- Revenue above the middle of Viant’s range: 1.3%, the smallest margin in four quarters
- Media costs Viant passes on: up 33% from a year ago, after 49% last quarter
- The same costs in the fourth-quarter plan: up about 11%, by our math
The gap comes from money that goes to media owners. Under some contracts Viant books the client’s whole ad budget as revenue; under others, only its fee. So slower revenue can mean a change in contract types, which leaves the company’s income intact. It can also mean large clients are spending less. One agency group supplied 12.5% of revenue last quarter, the quarterly filing showed.
What to watch: the customer-concentration note in the new quarterly filing. A lower share for the largest agency group, alongside slower revenue, would point to that client pulling back.
Net Income Halved in a Record Quarter
Chief executive Tim Vanderhook called these “record third quarter results”. That holds for revenue, but net income fell 49% to $2.6 million.
- Stock pay: $10.4 million, up 61% from a year ago
- General and administrative costs: 15.7% of revenue, up 2.7 percentage points
- Deal costs: $1.7 million, against none a year ago
- Earnings per Class A share: $0.00, against $0.06
Viant leaves stock pay and deal costs out of the profit figure it highlights. Stock pay now equals about half of that figure, and shareholders bear it through new shares: the total count is up 6.6% in a year.
What to watch: stock pay as a share of contribution, 15.4% now against 12.1% a year ago. A further rise would widen the distance between highlighted and reported profit.
Advertisers Can Now Run Campaigns Without Opening Viant
Viant sells a platform where advertisers plan and buy campaigns. This quarter it connected that platform to outside AI tools, “including Claude, ChatGPT, and Cursor”. Advertisers can now manage campaigns “through natural language prompts, outside of Viant's user interface”, the company said.
Viant presents this as becoming “a ubiquitous, AI enabled partner”. The move makes sense, because clients want to use familiar tools. But it also teaches them to buy ads from a chat window. A client who works there can more easily point the same chat tool at a rival’s buying system.
What to watch: any figure for spending that arrives through these AI tools; Viant gave none. Growth there without faster total contribution would mean the chat tools replace its own screen and add no clients.
Risks This Quarter Didn’t Answer
Four standing concerns got no new numbers in the release or the slides. Each one needs a disclosure that Viant did not make this quarter.
- Political ad cycles: the fourth quarter includes a US midterm election, and Viant did not size political spending; that figure would show how much growth repeats in 2027.
- Ad budgets in a downturn: advertisers can pause campaigns quickly; slower growth across several client industries at once would be the first sign.
- Amazon and Google: the materials say nothing about competition from their ad-buying tools; a large account that Viant names as won or lost would move this.
- Large-client pipeline: finance chief Larry Madden cited “a strong pipeline” for 2027 but gave no size; a dollar figure, or the value of multi-year contracts, would test it.
👓 Other Themes
Viant Buys Waymark to Generate Video Ads
Viant acquired Waymark, whose software turns a brand’s inputs into finished TV ads with “custom scripts, visuals, and voiceovers”. Chief executive Tim Vanderhook said advertisers could produce tailored ads “in minutes and at a fraction of traditional costs”. The release gave no price and no revenue figure. Its TVision unit also launched a mobile meter that links TV viewing to what people then do on their phones.
💲 Other KPIs
Cash left after equipment and software spending more than tripled from $6.1 million a year ago. The third quarter itself added little. By our math, operations produced $4.4 million of cash, because receivables rose $18.6 million. Viant ended September with $183.2 million of cash and no debt.
Viant resumed repurchases after buying almost nothing in the first half. It bought 1.4 million shares since July, and the board added $50 million to the programme. About $70.8 million remains, which the company plans “to be deployed opportunistically”. By our math, roughly $13.7 million of the purchases came after the quarter ended.
Each employee now supports more income: contribution per employee rose 8% from a year ago. Average headcount grew 13%, to 430. Contribution over the same twelve months climbed 22%. The measure has improved from a year earlier in each of the last five quarters.
🔮 Guidance
New. The plan has revenue rising about 20% from a year ago, the slowest pace since the third quarter of last year. No part of the year remains uncovered. Results topped the middle of the range by 4.3% on average over four quarters, but by less each time. If the pattern holds, revenue reaches about $137.7 million, growth of 25%.
Unchanged in direction. The middle of the range means growth of about 26%, slightly under this quarter’s 27%. So Viant needs the upper part of its range, about $81.9 million by our math, to keep growth rising as it said in August. Results topped the middle by 1.5% on average over four quarters. If the pattern holds, contribution reaches about $82.7 million.
New. Running costs, which leave out media costs, stock pay and depreciation, rise about 25% from a year ago at the middle of the range. That is slower than this quarter’s 28%, even with Waymark added. This quarter the same costs came in $0.4 million above the middle of the range.
New. The plan has profit before stock pay and other items rising about 27%, slightly ahead of contribution. That puts profit at about 39% of contribution, against 38% a year ago. Results topped the middle of the range in each of the last four quarters, by 6.4% on average. If the pattern holds, profit reaches about $33.5 million.
New. Viant put a dollar figure on the full year for the first time. It equals nine months of results plus the middle of the fourth-quarter range. That means growth of about 26%, against 19% in 2025.
Unchanged, now with a number. Growth of about 24% is well above the 13% market rate that Viant set as its floor in August. Contribution rose 18% in 2025.
New. Running costs grow about 22% for the year, against 14% in 2025. The acquisitions explain part of the step-up. Excluding them, costs rose 19% this quarter, the company said.
Unchanged, now with a number. Profit before stock pay rises about 31% and reaches 29% of contribution. That share is about 1.5 points above 2025. By our math the first quarter supplied most of the gain. Since the TVision purchase in May, the share has barely moved from a year earlier.
❓ Key Questions
Which clients explain the slower revenue growth?
Media costs that Viant passes on rise only about 11% in the fourth-quarter plan, by our math, after 49% two quarters ago. Viant did not say whether contract types changed or large clients cut spending.
How much political advertising is in the fourth-quarter plan?
The quarter includes a US midterm election, and Viant named public services among its strongest client groups. Without the political share, investors cannot tell how much of the 26% contribution growth repeats in 2027.
What do TVision and Waymark add to revenue and costs?
By our math the acquired businesses added about $3.4 million of running costs this quarter. Viant published no revenue for either one, and no price for Waymark.
How large are Viant’s multi-year contracts now?
These contracts stood at $11.7 million in June, up from $0.7 million in December, according to the last quarterly filing. The new figure would test Madden’s claim of “a strong pipeline” for 2027.
Why did third-quarter cash trail profit by so much?
Operations produced about $4.4 million of cash against $19.8 million of profit before stock pay, by our math. Receivables rose $18.6 million, and other assets have more than tripled since December.