How does CTV advertising work on Roku?

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Last updated: April 8, 2026

Quick Answer: Roku CTV advertising works through a self-serve platform called OneView, launched in 2021, which allows advertisers to buy targeted ads across Roku's 80 million active accounts. Ads are delivered via Roku's operating system on streaming devices and smart TVs, using first-party data from user viewing habits for precise targeting. Advertisers can measure performance through metrics like completion rates and brand lift, with Roku generating over $2.8 billion in ad revenue in 2023.

Key Facts

Roku has over 80 million active accounts as of Q4 2023
Roku launched its OneView ad platform in 2021
Roku generated $2.8 billion in ad revenue in 2023
Roku OS runs on 38% of smart TVs sold in the US
Roku offers measurement through partnerships with Nielsen and iSpot.tv

Overview

Connected TV (CTV) advertising on Roku represents a major shift in digital marketing, leveraging streaming technology to reach cord-cutters and cord-nevers. Founded in 2002 as a Netflix streaming device company, Roku pivoted to become a leading streaming platform, launching its first ad-supported channel in 2014. The company went public in 2017 and has since expanded its advertising business significantly, acquiring dataxu in 2019 for $150 million to enhance its ad tech capabilities. Roku's platform now includes both hardware (streaming sticks and boxes) and licensed software (Roku TV OS), creating a closed ecosystem where it controls both content distribution and ad delivery. This vertical integration allows Roku to collect valuable first-party data from millions of households, making it a powerful player in the CTV advertising space that competes directly with Amazon Fire TV and Google's Android TV.

How It Works

Roku CTV advertising operates through a multi-layered system beginning with its OneView platform, where advertisers create campaigns using self-service tools or work with Roku's sales team. The platform uses Roku's first-party data from user registration, device usage, and content viewing to create audience segments for targeting. When a user streams content on Roku devices or Roku-powered smart TVs, the system determines ad insertion opportunities based on factors like content genre, time of day, and user demographics. Ads are delivered as pre-roll, mid-roll, or interactive formats, with Roku's proprietary operating system ensuring smooth integration. Measurement occurs through Roku's partnerships with third-party verification services, tracking metrics like view-through rates and attribution to offline sales. The entire process is automated through programmatic buying, with Roku taking a percentage of each ad dollar spent on its platform.

Why It Matters

Roku CTV advertising matters because it represents the future of television marketing as traditional linear TV declines. With over 80 million active accounts, Roku provides access to audiences that are increasingly difficult to reach through conventional broadcast channels. For advertisers, this means more precise targeting using actual viewing behavior rather than demographic estimates, leading to higher engagement rates and better ROI. The platform's measurement capabilities help brands understand campaign effectiveness in ways traditional TV cannot match. For consumers, Roku's ad-supported model helps keep content costs lower while maintaining access to free streaming options. As CTV advertising grows to an estimated $30 billion market by 2025, Roku's position as both a hardware manufacturer and ad platform gives it unique advantages in shaping this evolving landscape.