The Lombard Review
Business Special Report

Prime Day: The ad business behind the discounts

Ad revenue subsidises discounts

A supermarket aisle in New Orleans
A supermarket aisle in New OrleansPhoto: Infrogmation of New Orleans / Wikimedia Commons, CC BY-SA 4.0
1 min read Data: Adobe Prime Day $14.2bn

Amazon’s tenth annual Prime Day generated an estimated $14.2 billion in online sales, setting a fresh commercial record. Yet retail analysts examining the financial mechanics behind the retail festival understand that the genuine profit engine of the event is not the discounted merchandise; it is Amazon’s high-margin retail media advertising platform.

The façade of the New York Stock Exchange
The façade of the New York Stock ExchangePhoto: Donatingpictures / Wikimedia Commons, CC BY-SA 4.0

The High-Margin Ad Engine

Third-party merchants, desperate to secure visibility across Amazon’s crowded search rankings during the 48-hour event, bid billions of dollars for sponsored product placements. These high-margin advertising dollars effectively subsidize the deep consumer discounts on retail goods. Amazon’s e-commerce marketplace is increasingly an operational Trojan horse for its massively profitable corporate advertising monopoly.

The trading floor of the Frankfurt Stock Exchange
The trading floor of the Frankfurt Stock ExchangePhoto: Ank Kumar / Wikimedia Commons, CC BY-SA 4.0

Prime Day’s record sales mask a profound structural shift: retail discounting is now heavily financed by an aggressive retail media advertising toll levied on third-party sellers.