# Why sellers lose the Amazon Buy Box — live check data

URL: https://aiadking.com/data/buy-box-loss-reasons
Updated: 2026-09-03

From 14,762 hourly Buy-Box checks: how often sellers lose the box and what the winning offer looks like — price gaps, FBA vs self-ship, stock.

Amazon Buy Box loss data (AIAdKing hourly checks). Aggregates from hourly Buy-Box observations across live seller accounts: loss rate and characteristics of winning competitor offers (price gap, fulfilment method).

## Key figures

- Buy-Box checks, last 30 days: 14,762 (Hourly observations across live seller products on the platform.)
- Checks where the box was lost: 11.7% (Roughly one buyer visit in nine landed on a competitor's offer instead of the seller's.)
- The usual winner profile: Price first (When we can observe the winning offer, the dominant pattern is a lower landed price — frequently a self-shipped offer undercutting an FBA seller by a margin small enough to fix.)