Amazon Prime Day Order Size and Spend Are Down, But First-Day Sales Are Up

Amazon Prime Day 2026 is producing some interesting numbers, with Numerator data suggesting average order size by day three had reached $45.94, down 16% from $54.78 at the same time last year, and average household spend came in at $121.26 versus $139.71 (down 13%). On the other hand, Adobe data from the first day of the sale pegged sales up 5.3% against 2025’s numbers at $8.3 billion (more).