US programmatic digital display ad spending will reach $15.43 billion this year, up 49.5% over 2014 spending levels, eMarketer estimates. In our latest forecast for programmatic ad spending in the US, we expect programmatic direct buyers to account for a majority of all spending this year.
http://www.emarketer.com/Article/Programmatic-Direct-Takes-Majority-of-Programmatic-Ad-Dollars/1013035?ecid=NL1002