Viant Technology shares surge 10.40% premarket after reporting record Q3 results, securing a Molson Coors partnership, and exceeding guidance on CTV ad spend and profitability.

Viant Technology surged 10.40% in premarket trading following the release of its record third-quarter 2025 financial results, which exceeded guidance across revenue, contribution ex-TAC, and adjusted EBITDA. The company highlighted a multi-year partnership with Molson Coors Beverage Company, record Connected TV (CTV) ad spend accounting for 46% of total ad spend, and expansion of its IRIS_ID contextual targeting solution. CEO Tim Vanderhook emphasized growth drivers including CTV demand, proprietary addressability tools, and ViantAI-driven autonomous advertising. Despite a minor revenue miss in the quarter, non-GAAP earnings per share of $0.12 beat estimates by 62%, and the firm raised full-year guidance, projecting 20% revenue growth in Q4. The premarket rally reflects investor optimism over profitability strength, strategic partnerships, and AI-driven product momentum, overshadowing a reduced price target from Citizens ($16 from $18) and mixed analyst sentiment.