The Trade Desk has named itself the first demand-side platform partner for DramaBox, the vertical short drama app, opening programmatic access to one of the fastest-growing content categories on the open internet. Inventory is live globally. The numbers behind the deal explain why TTD moved quickly. Short drama apps are projected to generate roughly $3 billion in revenue in 2025, about three times the 2024 figure, with the United States now the largest market outside China.