How could PubMatic's direct supply-side platform access affect Google?
PubMatic's direct SSP access could reduce Google's market share in digital advertising. The shift of ad buyers toward PubMatic's supply-side platform (SSP) is accelerating, driven by the ability to bypass traditional demand-side platform (DSP) filtering. This direct access, facilitated by PubMatic's Activate solution, allows ad buyers to connect directly to publisher data-rich inventory. As high-value channels like connected TV (CTV) grow rapidly, and buyers increasingly shift campaign execution onto PubMatic's platform, this trend poses a competitive challenge to Google's established position in the digital advertising and DSP market.
- Effect
- Mild negative
- How direct
- Brind's reasoning
- When
- Within weeks
- The story
- No new developments lately
How it reaches Google
-
PubMatic reported that its revenue grew 17% year over year in the third quarter of 2026. The company noted that ad buyers are increasingly shifting campaign execution directly onto its supply-side platform, which bypasses traditional demand-side platform filtering. Premium inventory formats, including Connected TV, now generate nearly two-thirds of PubMatic's total revenue.
The full event1independent outlet -
Ad buyers are moving campaign execution directly onto PubMatic's supply-side platform (SSP), the software that connects digital publishers to ad buyers. This direct access, through the company's Activate solution, bypasses traditional demand-side platform (DSP) filtering and improves campaign efficiency. Buying activity on Activate grew more than 8x over last year. The move to direct SSP access means that the traditional filtering mechanisms provided by demand-side platforms (DSPs) are being bypassed. This directly impacts the market segment where Google operates its ad tech and DSP services, as buyers seek more direct connections to publisher data.
No report states this step directly. Brind drew it from the reporting on each side of it, so treat it as an informed guess.
-
American multinational technology company, a subsidiary of Alphabet Inc.
Everything about Google
Tap any step to see the evidence behind it.
The facts so far
As reported. Each one links to where it comes from.
- PubMatic announced revenue grew 17% year over year in the third quarter of 2026.fool.com
- Buying activity on PubMatic's Activate solution grew more than 8x over last year.fool.com
- Connected TV (CTV) growth accelerated to over 30% year over year globally.fool.com
- CTV represented 21% of PubMatic's total revenue globally.fool.com
Why it matters
The digital advertising market is undergoing a structural shift as media buying moves directly to the supply side, where publisher data is most intact. For Google, a dominant force in the ad tech ecosystem, this trend represents a potential erosion of market share in the DSP segment, as buyers seek out more efficient, direct connections to inventory.
This movement is being accelerated by the growth of high-value channels like connected TV (CTV), which is growing rapidly. PubMatic's ability to own and operate its infrastructure gives it structural leverage and control over processing expenses, allowing it to capture direct buyer spend and compound value.
What we don't know yet
- How quickly will the shift from traditional DSPs to direct SSP access accelerate?
- Will PubMatic expand its sales team sufficiently to capture the full scope of direct buyer spend?
What would change this answer
Reporting
- fool.comWednesday
Keep going
Brind's analysis is written by AI from the reporting linked above and can be wrong. This explainer is a possibility worth considering, not a forecast: steps marked as Brind's reasoning are not stated in the reporting. It is not investment advice; do your own research.