Connected TV advertising in 2026 is a market of giants and fragments. Industry estimates for the year suggest only three companies will capture more than 10 percent each of CTV ad sales in the United States — YouTube at nearly 12 percent, and Amazon and Disney each above 10 percent — while the rest of a very long tail divides what is left.
The shape of the market explains much of modern television strategy. YouTube’s position, estimated at roughly $9.21 billion in net CTV ad sales, reflects its dominance of living-room viewing time. Amazon’s share is assembled from Prime Video, Fire TV and Twitch; Disney’s combines Hulu, Disney+ and ESPN. Netflix, growing quickly since launching its ad tier, still holds a smaller share, and Roku takes a significant slice through its channel and platform business. Behind them sit Peacock, Paramount+, Tubi, Pluto TV and dozens of smaller services.
Subscription streaming with ads remains the core of the business: an estimated 84.7 percent of subscription OTT ad sales will come via connected TV in 2026, worth about $16.23 billion. Free ad-supported streaming television — the FAST channels such as Tubi and Pluto TV — continues to grow alongside, offering advertisers television-style inventory at no subscription cost to viewers.
For buyers, fragmentation is both the opportunity and the headache. Campaigns can be aimed at specific audiences in specific viewing contexts, but assembling national scale means stitching together multiple platforms, each with its own data, formats and measurement conventions. Programmatic buying has lowered the barrier for smaller advertisers, while premium inventory on the biggest platforms still tends to move through direct relationships and upfront commitments.
The giants are meanwhile converging on the same sales pitch: unified planning, buying and measurement across their portfolios. Disney used this week’s UK upfront to stress exactly that, alongside audience tools built on its own viewing data. Amazon brings commerce data no broadcaster can match. YouTube brings sheer hours watched. Each is trying to become the single front door through which television budgets pass.
The contrast with the traditional TV market is stark. Linear television sold a handful of networks through a handful of deals; CTV sells hundreds of endpoints through platforms, devices and aggregators. Media agencies have responded with specialist CTV teams and supply-path discipline borrowed from digital display.
On Friday, October 9, 2026, the practical question for advertisers is not whether connected TV belongs at the centre of the video plan — the money has already decided that — but how many platforms a plan needs before fragmentation starts costing more than targeting gains.
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