The coronavirus pandemic has accelerated cord-cutting and boosted streaming video viewing.

YouTube is the single biggest source of supply in US CTV advertising. The digital video platform’s outsize role in the US CTV space is particularly striking given that advertisers can’t access CTV inventory on YouTube on non-Google platforms (e.g., Roku).

YouTube viewing is shifting to connected TV (CTV) screens, a behavioral change that could help make YouTube a powerful alternative for TV advertisers moving dollars to digital video.

*Social networks will boost US mobile video ad spending this year.* In-app video advertising on platforms like Instagram and Snapchat was the main driver of growth, with new YouTube and Roku ad inventory helping, too.