July 23, 2024
2024 Prime Day Sales Shifted Significantly Towards Day 2
Our initial hourly view into Prime Day sales showed how in 2023, sales were significantly weighted towards day 1 of the event - something brands had largely come to expect from Prime Day as a whole. For the 2024 event, with sales up roughly 14% year-over-year, the first day was still larger, but the gap between day 1 and day 2 shrank significantly. Median day 2 sales in 2024 were 83.9% of the day 1 figure - in 2023, that number was only 70.3%.

This change manifested at an hourly level with a much stronger start to the second day of the sale event, despite the evening peak being around the same level as 2023.

Biggest Takeaways for Brands
Changes in what consumers buy on Prime Day is impacting when they buy
In 2024, an increasing percentage of Prime Day sales went to household, clothing, and back-to-school categories which differ from ‘big ticket’ items whose deals may be more limited in number and sell out quickly
Relatedly, more discounts were present across the site as a whole, which likely also helped sustain higher sales throughout both days
The increase in day 2 sales makes it even more critical to retain budget flexibility throughout Prime Day
The overall jump in 2024 Prime Day sales may have pushed brands to exhaust much of their ad budgets on day 1, potentially hampering their day 2 trajectory
Given that more shopping is shifting to later in the event, brands need to either reserve more ad budget towards day 2 or preferably, have the flexibility to increase budgets when performance dictates
The latter case is made possible through Amazon’s new hourly data feed (with the latest round of technical difficulties hopefully being ironed out by 2025)