CATEGORY OVERVIEW
Prime Day 2026: Grocery
Revenue grew, margins improved, and Grocery bucked the broader event trend
- Grocery revenue grew 25% year-over-year: one of the only categories to buck the broader Prime Day trend.
- Ad spend rose just 1.6% YoY: while gross margin improved every day of the event versus last year.
- Stockout losses more than tripled year-over-year: even as the category's core metrics held up well.
Download the full Prime Day category report for Grocery.
Key takeaways
- Grocery bucked the broader Prime Day trend: Revenue grew 25% year-over-year and cleared baseline all four days, while traffic also rose 17% year-over-year.
- Stockout losses were the key risk: Revenue lost to out-of-stocks rose 206% year-over-year and stayed elevated after the event, signaling a persistent inventory gap.
- Margins improved every day of the event: Gross margin ran higher across all four days than Prime Day 2025, a modest but consistent improvement in unit economics.
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Revenue grew, margins improved, and Grocery bucked the broader event trend
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