year over year in Q1 2026, up from 13% growth a quarter earlier. YouTube impression growth accelerated from 38% in Q4 to 52% in Q1. Average CPM remained in decline, falling 21% year over earlier. Official YouTube growth was relatively focused Demand Gen campaigns, TV screens inventory in Q1 2026, with phones accounting for just under half of spending. For video campaigns alone, however, TV screens dominate YouTube ad spending, accounting for 72% of total investment, compared to just 14% for phones. YouTube vide0 ad campaigns in Q1 2026, while 63%. Shorts ads produced a slightly smaller share, 14%, of YouTube ad spending purchased through Demand Gen campaigns. TV screens produced campaigns, compared to 72% across all ad formats.
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