Amazon Prime Day 2026 sees grocery sales slump and AI-driven purchase surge

During Amazon's four‑day Prime Day event (June 23‑26, 2026), the grocery category recorded a four‑year low, with only 16% of Prime shoppers buying grocery items. This marks a drop from 22% the previous year and approaches the 14% share seen in 2022.

In the same period, AI‑referenced traffic reshaped shopping behavior. U.S. shoppers spent a record $26.4 billion across retail sites, and shoppers arriving via generative‑AI chatbots were about 40% more likely to complete a purchase than those coming from search, email or social media. AI‑driven visits to retailers nearly doubled year‑on‑year on Day 1 (up 98.3%). Those visitors stayed 49.9% longer, viewed 20.5% more pages and added items to carts at a 33% higher rate. Adobe Analytics notes AI‑referral traffic to U.S. retail sites rose 393% year‑on‑year in Q1, now converting roughly 42% better than non‑AI traffic.

The shift suggests a move away from search as the primary discovery layer toward AI assistants, with potential implications for Amazon’s advertising model and broader e‑commerce strategies.