The Buy Box is the prominent 'Add to Cart' section on an Amazon product listing that determines which seller's offer is presented to buyers by default. When multiple sellers list the same product, Amazon's algorithm selects one seller to 'win' the Buy Box.
Approximately 82% of all Amazon purchases go through the Buy Box. Winning the Buy Box is critical for sales velocity, and Buy Box eligibility depends on price, fulfillment method, seller metrics, and inventory availability.
RIDGE analyzes Buy Box ownership patterns among competitors, identifies price thresholds for Buy Box eligibility, and assesses the competitive dynamics that determine whether new entrants can win Buy Box share in a given niche.
If three sellers offer the same product at $24.99, $25.99, and $26.99, the seller at $24.99 with FBA fulfillment and high seller metrics will likely win the Buy Box, capturing the majority of sales.