Carat , experienced a global ad spend growth in 2016 of 4.7 billion reaching $ 554bn . Digital is the only country getting double digital growth , followed by mobile and online video . Programmatic buying has a rapid growth rate of +20 % each year . By the end of this year , online programmatic transactions will account for 52 % of non - search digital advertising spend .
Carat, forecasts a global ad spend growth in 2016 of 4.7% reaching $554bn. Digital is the only channel getting double digital growth, driven by mobile and online video. Programmatic buying has a rapid growth rate of +20% each year. By the end of this year, US programmatic transactions will account for 52% of non-search digital advertising spend.