The retail industry commits by far the most dollars to digital advertising in the US. It has accelerated ad spending with above-average growth every year since 2020, fueled by the rising importance of ecommerce and digital channels in the consumer journey. By comparison, online ad spending by most other industries we track has seen far greater fluctuations from year to year over the same period. Retail’s ad spending growth will see sustained growth this year and next before other industries start to catch up on spending in 2025.