https://techcrunch.com/2019/07/15/report-amazon-prime-day-2019-will-push-u-s-e-commerce-sales-to-over-2-billion/

A report from Adobe’s analytics arm predicts Amazon’s Prime Day 2019 sales event, which began today, to have another sizable impact on the U.S. e-commerce market. The company expects a revenue lift for top retailers — those with over $1 billion in online sales — to reach 79% this year, up from the 60% lift they sale during Prime Day 2018. And it says that Prime Day will become the third time outside the holiday season that U.S. e-commerce spending will top $2 billion, as it previously did on Labor Day 2018 and Memorial Day 2019.

“We attribute this growth in sales to the fact that the big e-commerce competitors have become better at reaping the benefits of this artificial holiday,” said Taylor Schreiner, principal analyst at Adobe Digital Insights (ADI). “After all, they’ve now had almost five years of practice in converting Prime Day traffic.”