The last week of December is the densest window of the year: in 5 days you get the equivalent of ~22% of total Christmas sales (E-bit/Conversion, 2024). Every hour of lag is expensive, and competitors’ depth curve shifts 2-3 times a day between December 20 and 24.
22%
of Christmas sales happen in the last 5 days (December 20-24).
E-bit / Conversion, 2024
The window of opportunity is rarely the most obvious one. It is the shortest one.
The shortest window of the year
Between December 20 and 24, the customer decides fast and the competitor reacts fast. Typical Brazilian consumer behaviors (Hibou, 2024):
- 74% of last-minute buyers check ≥ 3 sites before deciding.
- 89% prioritize delivery time over discount depth.
- ~58% complete the purchase at night (after 8 p.m.).
What to monitor during those 5 days
Express shipping
“arrives before Christmas” is the biggest driver
Last-minute coupon
unusual depth = stuck inventory
Returns/exchange
a more generous post-holiday policy
Physical store
extended hours signal active omnichannel
When to react and when to let it pass
React
• Giftable SKU with a mid-to-high ticket
• Absolute margin makes it worth it
• A direct competitor moved on the SKU
• You have stock + guaranteed fast delivery
Let it pass
• Technical/utility SKU (the customer prioritizes the deadline)
• Margin already tight
• You can’t deliver by the 23rd
• Category with a strong brand component
Post-Christmas is already pre-January
A competitor who drops a “collection swap” coupon on the 26th is already starting the end-of-cycle clearance phase. Capturing that signal defines your January mechanic:
- Shallow depth (10-15%) on Dec 26-31 = long-tail turnover.
- Medium depth (20-30%) = active collection clearance.
- High depth (35%+) = a serious stock problem (an opportunity to adjust your own January assortment).
References and further reading
- E-bit / Conversion (2024). Year-End Sales Yearbook. NielsenIQ / Conversion link .
- Hibou Pesquisa (2024). Last-Minute Behavior on Commemorative Dates. Hibou Market Research link .
- McKinsey & Company (2023). Speed and Conversion in Retail. McKinsey Retail Practice.
- Drucker, P. F. (1985). Innovation and Entrepreneurship. Harper & Row.
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