Learnings
Streaming TV Cheat Sheet: What to know about advertising on HBO Max
Ava Hinds
Streaming TV Specialist
HBO Max is one of the few platforms where prestige and scale aren't a trade-off, they come together.
Backed by Warner Bros. Discovery, it reaches roughly 70% of U.S. viewers monthly. According to TheWrap, Max closed 2025 with nearly 132 million global subscribers and is pacing past 150 million in 2026.
Source: Warner Bros. Discovery Advertising
Warner Bros. Discovery's premium streaming platform brings together HBO's flagship dramas, an exclusive A24 film pact, and a sports and news portfolio spanning TNT , CNN, and the Discovery Inc unscripted brands, all in one app.
Meet Your Audience: High-Value and Culturally Engaged
Max viewers don't passively consume content, they schedule their evenings around it. The platform offers a quality-over-quantity environment that naturally attracts affluent, highly engaged households and upper-funnel brand targets.
What makes them valuable? You're not buying passive reach, you're buying attention at its peak.
Max ranks #1 in reach among Gen Z, driven by cultural phenomena like Euphoria.
WBD's streaming and digital network reaches 145 million Adults 18+ monthly, 56% of all U.S. adults.
Max holds the #1 spot in search engagement, outperforming its nearest competitor by over 22%.
Source: Warner Bros. Discovery Advertising
What Are They Watching?
Content heat is the engine.
Prestige tentpoles like House of the Dragon, The Last of Us, and breakout hits like It: Welcome to Derry drive appointment and lean-forward viewing.
The exclusive A24 pact puts Max in the fast lane on indie film. Half of A24's theatrical releases hit Max's top 10 movie list within two weeks, and viewers who watch one A24 film return for three more.
Sports, news, and lifestyle round out the daily habit. TNT Sports reaches 159.3M linear sports fans, CNN Max is the #1 cross-platform news destination, and HGTV, Food Network, and TLC account for 9 of the top 20 cable networks in prime.
Where Max Fits in Your Media Buy
On State of Streaming's USPI Popularity Score, August 2026 USPI Update, which tracks catalog depth across the industry's biggest streaming apps, Max ranks #3 overall. That's real, owned content people are actively searching for and clicking toward, not a passing spike.
Max owns what it sells and has built their own catalog.
Max delivers maximum content heat. You're buying impressions alongside cultural moments where viewer attention peaks, not background noise.
Max keeps a lower ad load than traditional FAST or linear, giving your brand message higher standing and recall among affluent households.
Unified buying extends your reach. Upper-funnel Max campaigns connect to broader digital and linear reach across TNT, TBS, HGTV, and Food Network, all inside one buy.
Source: State of Streaming, August USPI Update
How to Measure
Max gives you premium reach and cultural relevance. [cognition] is the platform that lets you activate it, measure what happened, and prove it worked, all in one place.
We break our Measurement Studio into three layers:
Reporting is your receipt. Where did your money go, how many impressions, what was your CPM? Across every tactic and channel, in one view.
Attribution is one-to-one. [cognition]'s Headless Analytics Tag bridges streaming exposure to website visits and purchases, so you can calculate actual return on ad spend.
Measurement is directional feedback. The Headless Analytics Tag connects ad exposure to real-world outcomes, whether that's foot traffic, site conversions, or brand lift in target markets.
And underneath those three layers is the overlap story. The real question isn't whether you're reaching the same people across channels, it's whether they're shopping across your network. That full-journey visibility is also where the sharpest insights live, and they're rarely the same twice.
