How restocks work (and how to catch them fairly)
A product that sells out in minutes isn't necessarily gone. Stores restock for predictable reasons, and a lot of people who "missed the drop" end up buying on the restock instead.
Why products come back
- Cancelled and unpaid orders. Orders that fail payment, get flagged for fraud or exceed purchase limits are cancelled, and that stock quietly returns to the shelf, often within hours of the launch.
- Returns. Returned items are restocked in ones and twos.
- Planned restocks. Some brands deliberately release stock in waves or restock best-sellers.
- Staggered inventory. Stores sometimes release sizes or regions separately.
What a restock looks like from the outside
On most online stores a product page stays up after it sells out; its sizes are simply marked unavailable. A restock is the moment one or more sizes flips back to available. Small restocks from cancellations can be just a size or two and sell out again quickly, so speed matters.
Patterns worth knowing
- Cancellation restocks cluster in the first 24-48 hours after a launch.
- Some brands restock the same products repeatedly; others never do. A brand's restock rate predicts a lot about how long a resale premium lasts.
- Products that restock and sell out again ("restock churn") are showing sustained demand, not a one-day spike.
Catching them fairly
You don't need bots to catch restocks. You need to know the moment one happens and to be ready to check out yourself. Snagdar watches the stores you pick at a polite pace, uses official retailer APIs where they exist, and never tries to bypass bot protection or purchase limits. When a size you want comes back, it prepares a cart and asks you to approve; you complete checkout on the store's own site.
Stores are within their rights to cancel orders that break their rules. Staying within purchase limits protects the orders you do get.