Tubi, the free-streaming platform owned by Fox Corporation (NASDAQ: FOXA), made Amazon DSP the front door to a 97-million-monthly-user audience. At its Tubitopia presentation at the IAB NewFronts on March 24, Tubi unveiled Tubi Priority Access, an exclusive first-look package routed through Amazon.com, Inc.’s (NASDAQ: AMZN) Amazon DSP — the operational counterpart to Walmart-Vizio’s identity gateway, and another data point for the read that “independent” CTV no longer means independent of platform routing.
The mechanic rests on Amazon’s Authenticated Graph, which Tubi said recognizes 85% of its supply against an Amazon user. Tubi also said 10% of its audience is incremental to Amazon’s open-internet streaming TV supply; Amazon’s NewFronts page reframes the figure as household reach and calls the 85% rate “one of the highest match rates among third-party CTV publishers” in its supply.
Amazon also attributes a 42% lift in unique audience reach, a 3x return on ad spend, and a 27% reduction in frequency per user to authenticated-graph activation. Neither company published methodology, sample frame, or measurement window. The figures are vendor-stated.
Priority Access sharpens a year-long pattern. Disney brought Amazon DSP into DRAX in June 2025; Roku and Amazon announced their authenticated CTV footprint the same month; Netflix followed in September. Each earlier deal routed publisher inventory into Amazon DSP. Tubi goes further: a within-DSP priority tier, with the publisher selling its premium impressions through Amazon’s pipe rather than its own. That is the cleanest case yet for the independent-stack thesis and an extension of the identity-stack consolidation Amazon spent the spring assembling.
Fox reports Q3 FY2026 earnings on May 11. Tubi sits within the Television segment and isn’t broken out at line-item granularity, so the disclosure to watch is management commentary — any reference to advertising trends, addressable reach, or the Amazon partnership in the first quarterly window after the reveal.
