The US digital ad business continues to grow robustly
During last year’s fourth quarter, Alphabet’s revenue grew 21.6% YoY (year-over-year) to $39.28 billion, while Facebook’s grew 33% YoY to $13.78 billion. Most of Alphabet’s and Facebook’s revenue comes from ads.
Meanwhile, Amazon (AMZN), which is now third in the US digital ad market, saw its digital ad revenue nearly double YoY. The company’s “other” segment, which mainly comprises ad revenue, grew 95% YoY to $3.39 billion.
Google’s and Facebook’s market share could shrink
This year, eMarketer expects total US digital ad spending to grow 19% YoY to $129.34 billion, comprising ~54.2% of total US ad spending. The research company expects mobile to represent over two-thirds ($87.06 billion) of digital ad spending.
The outstanding growth of Amazon’s ad business could impact the Google-Facebook duopoly this year, and eMarketer expects it could shrink for the first time. Google’s market share is expected to shrink YoY to 37.2% from 38.2%, while Facebook’s is expected to expand YoY to 22.1% from 21.8%. Meanwhile, Amazon’s market share is forecast to expand YoY to 8.8% from 6.8%.