Netflix ad revenue is not growing quite as quickly as the company promised. In its October 20 shareholder letter, the streaming giant lowered its 2026 advertising forecast from $3 billion to about $2.7 billion, blaming slower-than-expected launches of new ad products and partner integrations.

The $300 million reduction amounts to a 10% cut. Investors noticed: Netflix shares fell as attention shifted from its 12% rise in third-quarter revenue, which reached $12.9 billion, to the weaker advertising outlook.

Co-chief executive Greg Peters insisted demand remains strong. Media buyers offered a less flattering explanation, pointing to high prices, awkward purchasing systems and uncertainty around sports packages. Both accounts may contain part of the answer. Netflix has attracted advertisers, but its machinery for serving them has not always kept pace.

Is demand weak, or is Netflix’s technology late?

Netflix expects its advertising business to grow by more than 80% this year, implying roughly $1.5 billion in 2025 sales. The company also says its ad-supported service reaches more than 250 million monthly active viewers, up from 94 million in May 2025. That figure measures viewers rather than paying accounts, an important distinction when very large numbers arrive wearing their best clothes.

The Streaming Wars reported that Netflix’s US upfront commitments nearly doubled, supporting the company’s argument that advertisers have not lost interest. Peters said the shortfall came primarily from delays in rolling out capabilities buyers want.

“We’re still growing, our ads business is growing over 80% this year,” he said. Peters added that an aggressive product roadmap would occasionally leave Netflix behind schedule, while maintaining that demand and the number of advertisers continued to expand.

The Trade Desk offers one example of the unfinished work. Advertisers using its platform are due to gain first-party and third-party audience targeting for Netflix inventory in November, while measurement within the platform is still expected later. Netflix has also opened more of its programmatic inventory to Amazon and Yahoo after initially concentrating on its own ad technology.

That expansion matters because buyers prefer to purchase campaigns through familiar systems rather than learn a separate Netflix process for the privilege of spending money. One media-buying executive said the company’s attempt to build its own “walled garden” slowed adoption by making Netflix harder to work with.

A booming market can still push prices down

Netflix’s technical delays arrived during a broader streaming advertising glut. Amazon Prime Video, Disney+, HBO Max, traditional broadcasters and free ad-supported streaming television services are all competing for the same marketing budgets.

Spending is rising, but supply is rising faster. Media Dynamics estimated that commitments in the 2026-27 streaming upfront market increased 30%, from roughly $13.2 billion to $17.2 billion. At the same time, the average cost of reaching 1,000 viewers, known as a CPM, fell about 5%, from $27.75 to $25.90.

This was the third consecutive upfront market in which media companies accepted pricing rollbacks. In other words, streaming attracted substantially more money while becoming cheaper per viewer. Scale is pleasant. Bargaining power is better.

Pivotal Research Group analyst Jeff Wlodarczak said free ad-supported channels were gaining audiences particularly among households under greater income pressure. The growth of those services gives marketers more alternatives and makes it harder for any platform to argue that its inventory deserves premium pricing simply because it appears on a television screen.

Programmatic buying adds to that pressure. Automated systems can find audience groups such as prospective car buyers or expectant parents across multiple services. That efficiency helps advertisers, but it can make one platform’s commercial break look increasingly interchangeable with another.

Buyers say Netflix remains expensive and complicated

Media buyers quoted in the original reporting said Netflix had set expectations above what the wider market would support. They complained that inventory remained expensive and that some purchasing processes sat too far outside established advertising systems.

Sports sales created another problem. Live events attract the large, simultaneous audiences advertisers still prize, but buyers said Netflix was slow to disclose pricing, packages and spending requirements around properties such as its Christmas Day NFL games.

“There was confusion about even just basic things,” one buyer said, citing unanswered questions about whether advertisers had to match sports spending with entertainment purchases and when negotiations would begin.

Netflix is not the first technology company to discover that owning popular programming does not automatically make advertising negotiations simple. When Amazon began selling Thursday Night Football on Prime Video, it reportedly sought prices above those charged for Fox’s established Sunday afternoon NFL games. Buyers resisted, and Amazon was believed to have eased some of its demands.

Netflix does have programming advertisers want. Coca-Cola, Anheuser-Busch and State Farm have pursued prominent campaigns connected to series including Stranger Things, The Gentlemen and Running Point. The limitation is that bespoke sponsorship opportunities depend on the release calendar and cannot provide unlimited inventory.

Advertising is small for Netflix, but strategically important

The revised $2.7 billion forecast would represent only about 5% of Netflix’s projected $51.1 billion in 2026 revenue. Subscriptions remain the central business, but analysts see advertising as an increasingly necessary second source of growth.

Emarketer senior analyst Ross Benes told the Associated Press that the lower forecast was concerning because Netflix needs income beyond subscriptions. Forrester vice-president Mike Proulx said the reduction gave investors another reason to question how much growth advertising can deliver. In May, Netflix advertising president Amy Reinhard had described 2026 as the year for establishing the company as “a formidable” player in the market.

The challenge will become larger as Netflix expands the ad-supported tier into 15 more countries in 2027. That move can increase reach and inventory, but it will also add supply while industry pricing remains under pressure.

Advertising is not the company’s only concern. New Street Research analyst Dan Salmon said execution problems in the ad business would join investors’ primary worry about declining engagement. Netflix has hired former Fox and Disney executive Peter Rice to strengthen relationships with producers, directors and other creative partners as it works to keep subscribers watching.

The immediate task is more practical: finish the targeting and measurement tools, simplify purchasing and price inventory for the market that exists rather than the one Netflix would prefer. Advertisers appear willing to show up. They would simply like the sales system to do the same.