Founder, Aftermarket Arbitrage · 18 August 2026
Restock sourcing is buying the same proven winner again when the retailer puts it back on the shelf. It suits sellers with a few months of online arbitrage behind them who want steadier money than hunting a new deal every week.
The method, step by step
- Build a replen list from your sales. Pull six months of orders, sort by profit per unit, and cross off the one offs. For each keeper, note the barcode, retailer, buy price, time to sell and seller count.
- Watch the retailer that sold it to you. Bookmark the exact product page and check it on a routine. The shop that gave you a winner in March will likely give it again. Better, our Co-Pilot Chrome extension watches your favourite replens on any store. The moment a sold out button flips back to buy, you get an alert and can stock up before anyone else has noticed.
- Reserve with click and collect. A reservation locks units at the store price the moment stock lands, hours before anyone could drive there. It also proves the stock is real, because website counters lie constantly.
- Price it again from scratch. Run today’s buy box, fees and seller count through SellerAmp. Never buy on memory, because the price and the fees both move.
- Buy depth on lines that still clear. Four strangers that scanned well today carry four sets of unknowns, a line you have sold twenty of carries almost none. Depth on the proven line is how a small pot compounds.
- Cull dead winners, keep feeding the list. If the numbers stop working, mark the line dead without sentiment. New winners graduate in from clearance sourcing and price drop sourcing.
Before you buy
- Match the barcode to the listing, never the title.
- It clears 20% ROI after all fees at today’s buy box.
- The seller count has not multiplied since your last sale.
- You are judging the data, not the product you are fond of.
- The reservation is confirmed before you drive anywhere.
A restock is not always the same product. Retailers swap pack sizes and reformulations under the same name and photo, and the wrong version can hurt your account health. Winners also die, so treat every rebuy as a fresh decision, not an income you can count on.
The live websites board shows which retailers are producing right now. If you want to talk through where replen fits your setup, book a free call, no pitch.
About the author
Jack Bayliss is the founder of Aftermarket Arbitrage, where a team and a purpose-built sourcing engine find and verify Amazon UK deals for members every day. Meet the community on the community page or book a free call.
