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April 1, 2019
US Real-Time Bidding (RTB) Digital Display Ad Spending, by Segment, 2015-2021 (billions)
Note
Programmatic digital display ads are digital display ads transacted via an API, including everything from publisher-erected APIs to more standardized RTB technology.
Methodology
Estimates are based on the analysis of various elements related to the ad spending market, including macro-level economic conditions; historical trends of the advertising market; historical trends of each medium in relation to other media; reported revenues from major ad publishers; estimates from other research firms; data from benchmark sources; consumer media consumption trends; consumer device usage trends; and eMarketer interviews with executives at ad agencies, brands, media publishers and other industry leaders.