Average Buybox Share (Avg Buybox Share) is your average share of the Buybox over the selected date range.

Seller Snap calculates Buybox share based on the price change notification provided by Amazon Seller Central.

Amazon's buybox share is based on the number of impressions while Seller Snap's buybox share is computed using the price change notifications from Amazon. Because Seller Snap's estimates are from the notifications, there may be instances where the calculation is skewed due to there being no other competitors on the ASIN or when multiple competitors are at the same price.