PubMatic’s Earnings Call Contradictions: Agentic AI Revenue Growth vs. Amazon Partnership Ambiguity

Date of Call: Feb 26, 2026

Financials Results

• Revenue: The transcript does not provide specific Q4 revenue figures or year-over-year/sequential growth percentages.
• EPS: $0.14 per diluted share (GAAP net income)
• Gross Margin: Not explicitly provided.
• Operating Margin: Q4 adjusted EBITDA margin of 35%, up from previous periods.

Guidance:

• Q1 revenue expected in range of $58M to $60M; excluding a legacy DSP, implies high single-digit year-over-year growth at midpoint.
• Q1 adjusted EBITDA expected in range of -$0.5M to +$1M.
• Expect to return to double-digit revenue growth in second half of 2026, with corresponding margin expansion.
• Full-year cost of revenue expected to marginally increase low single digits.
• Full-year operating expenses expected to grow mid-single digits.
• Sequential quarterly operating expenses anticipated to marginally increase low single digits.
• Full-year CapEx projected at $15M to $19M.

Business Commentary:

Strong Financial Performance in Q4 2025:

• PubMatic reported an exceptionally strong fourth quarter, with revenue and adjusted EBITDA exceeding guidance, achieving a 35% adjusted EBITDA margin.
• The growth was driven by continued growth in the underlying business, leadership in AI solutions, and the durability of their business model.

Growth in CTV and Emerging Revenue Streams:

• CTV revenue grew over 50% year-over-year, excluding political, and emerging revenues, which include Activate, commerce media, and new AI solutions, nearly doubled over 2024.
• This growth was attributed to strategic moves to reposition PubMatic for renewed profitable growth and the adoption of AI-driven solutions.

Diversification and AI Leadership:

• PubMatic added 50 new DSP partnerships, diversifying its buyer mix, and demonstrated leadership in agentic advertising with the launch of AgenticOS.
• The company's strategic focus on diversification, AI innovation, and strong sales team growth contributed to these achievements.

Operational Efficiency and Cost Management:

• The company achieved significant operational efficiencies, with total operating expenses flat year-over-year, and AI-driven productivity improvements.
• These efficiencies were supported by disciplined cost management and the effective use of AI across business functions.

Future Outlook and Strategic Priorities:

• PubMatic expects double-digit year-over-year revenue growth in the second half of 2026, driven by strategic priorities such as Activate adoption, DSP diversification, and growth in CTV, mobile, and emerging revenue streams.
• The company is leveraging its early leadership in agentic AI as an incremental tailwind and structural advantage, enhancing advertiser performance and expanding its addressable market.

Sentiment Analysis:

Overall Tone: Positive

• CEO called Q4 'an exceptionally strong fourth quarter' with results 'ahead of guidance' and described as 'a pivotal turning point' and 'an important structural inflection point.' The outlook expects a return to 'double-digit revenue growth' and margin expansion in H2 2026, with confidence in leadership in agentic AI as 'an incremental tailwind and a structural advantage.'

Q&A:

• Question from Shweta Khajuria (Wolfe): Could you please maybe speak to how you work with Amazon, what role Amazon plays with your partnership and in the industry as it relates to their involvement in the ad tech chain?
  Response: Amazon partnership is growing, involving multiple roles: part of Amazon's Certified Supply Exchange program, monetizing streaming inventory via Amazon Publisher Services/Fire TV, and omnichannel inventory through Amazon's wrapper. Amazon is also a top 5 buyer on PubMatic.

• Question from Matthew Condon (Citizens): As you take a step back and you look at this new AI world, what are the structural assets that PubMatic has that really differentiates it from other platforms?
  Response: Differentiation stems from deep customer integrations (thousands of publishers), direct buying via Activate, early AgenticOS launch, purpose-built AI infrastructure (NVIDIA partnership), and rich first-party and data partner data, creating a durable competitive moat.

• Question from Barton Crockett (Rosenblatt): Is your vision that AI over time streamlines and reduces fees in open Internet? Is that basically your kind of base case of what happens?
  Response: Yes, AI is expected to streamline the industry, reduce fees, and bring supply and buy sides closer, creating efficiency and potentially increasing PubMatic's revenue participation while reducing transaction costs.

• Question from Robert Coolbrith (Evercore): What drove the 5x cost improvement in campaign execution? Also, will agentic make the programmatic world more centralized or more federated over time?
  Response: The 5x efficiency came from eliminating manual activity and third-party fees across the campaign lifecycle. Agentic is complementary to programmatic, not a replacement, and will bring more volume to the platform without displacing it.

• Question from Matthew Swanson (RBC): Could you talk more about DSP diversification as a renewed point of emphasis?
  Response: DSP diversification is a strategic growth area, with 50 new DSPs added in 2025, focusing on mid-market and specialized verticals, reducing concentration, and improving growth potential and diversification.

• Question from James Heaney (Jefferies): When you say Q4 results represented an inflection point, what was the biggest unlock?
  Response: The biggest unlock was a combination of growth in secular areas (CTV, mobile app, emerging revenues), DSP diversification, and the emergence of agentic AI as a new incremental tailwind, with 83% of adjusted business growing 18% YOY.

• Question from Zach Cummins (B. Riley): Have you seen a meaningful shift in advertiser prioritization due to LLM models impacting search traffic? Also, any update on the Google Ad Tech Remedies trial?
  Response: No meaningful shift in traffic or advertiser prioritization due to LLMs; search exposure is a single-digit % of revenue. Google remedies trial expected this quarter, likely behavioral rather than structural; potential outcome not included in forward outlook.

Contradiction Point 1

The Nature of PubMatic's Collaboration with Amazon

Clarification on whether PubMatic is a direct platform or involves reselling.

What role does Shweta Khajuria (Wolfe) play in the earnings call? - Shweta Khajuria (Wolfe)

20260227-2025 Q4: We work with Amazon in multiple ways, including being part of their Certified Supply Exchange program... Collaboration includes product releases like traffic shaping. - [Rajeev Goel](CEO)

What role does Amazon play in your partnership and the ad tech industry? - Andrew Marok (Raymond James)

20251111-2025 Q3: PubMatic is a platform for direct inventory monetization, not reselling. - [Rajeev Goel](CEO)

Contradiction Point 2

The Role and Impact of Agentic AI on the Business Model

Contradiction on whether AI-driven revenue is material now or a future prospect.

Jason Helfstein (Oppenheimer) - Jason Helfstein (Oppenheimer)

20260227-2025 Q4: Agentic revenue will build over time, similar to how emerging revenues grew... Activate generates an incremental fee on top of the SSP fee. Additionally, 10% of publishers are now generating revenue from AI solutions. - [Steven Pantelick](CFO), [Rajeev Goel](CEO)

Are the over 250 agentic deals currently driving meaningful revenue, and how do the economics work? - Matthew Swanson (RBC)

20251111-2025 Q3: PubMatic's competitive advantage... positions PubMatic to participate in early transactions and standards like the Ad Context Protocol (ACP), creating value within the evolving ecosystem. - [Rajeev Goel](CEO)

Contradiction Point 3

The Company's Growth Outlook and Strategic Focus Areas

Shift in stated confidence for growth reacceleration from H2 2026 to being a culmination of past efforts.

Steven Pantelick (CFO) - Steven Pantelick (CFO)

20260227-2025 Q4: Q4 upside was driven by strong growth in emerging revenues (+75% YoY)... The business transformation efforts over the past few years culminated in this performance. - [Steven Pantelick](CFO)

What were Q4's top upside drivers? - Robert Coolbrith (Evercore)

20251111-2025 Q3: The company is confident in returning to growth in the second half of 2026. - [Steven Pantelick](CFO)

Contradiction Point 4

Nature and Impact of a DSP Platform Change

Contradiction on whether the DSP's valuation change was an isolated event or part of a broader, systemic trend.

Jason Helfstein (Oppenheimer) - Jason Helfstein (Oppenheimer)

20260227-2025 Q4: There is no indication of DSP retaliation; the shift toward performance and outcomes is a broad ecosystem trend seen with other platforms like Magnite and The Trade Desk. - [Rajeev Goel](CEO)

Is the DSP platform change related to auction dynamics or bid acceptance, and are there any retaliatory actions from the DSP due to PubMatic's Activate efforts? - Matthew John Swanson (RBC)

2025Q2: A top DSP partner shifted many clients to a new platform that evaluates inventory differently, changing how they value inventory... Mitigating this will take several months of iteration. - [Rajeev Goel](CEO)

Contradiction Point 5

Timeline and Visibility for DSP Change Mitigation

Contradiction on the clarity and predictability of the timeline for resolving a DSP platform issue.

Jason Helfstein (Oppenheimer) - Jason Helfstein (Oppenheimer)

20260227-2025 Q4: There is no indication of DSP retaliation; the shift toward performance and outcomes is a broad ecosystem trend seen with other platforms like Magnite and The Trade Desk. - [Rajeev Goel](CEO)

How is the DSP platform change related to auction dynamics or bid acceptance, and are there any retaliatory actions from the DSP due to PubMatic's Activate efforts? - Robert James Coolbrith (Evercore ISI)

2025Q2: PubMatic observed a significant uptick in activity from the DSP causing the drop. The exact timeline or history of changes on the DSP's side is unclear. - [Rajeev Goel](CEO)