Jeff Green said Amazon has an "objectivity problem" with advertisers that sell on its platform, which could limit its growth.
Data Plus Math is being sold at a 24X to 30X multiple of revenue, which is high even for its sector, experts say.
Amazon pitching advertisers that its video ads have better data than OTT rivals.
Companies like TVision, FreeWheel, Tru Optik, and Google are leading the charge into OTT.