Store arbitrage

Sourcing cheap inventory is just as important as pricing it right. With the Store Arbitrage tool, you can analyze the inventory of any BrickLink store and find parts or minifigures that you could resell profitably using your own pricing formula. It's a powerful way to find hidden gems and make smarter purchasing decisions.

How it works

Store Arbitrage compares another store's inventory against your Smart Pricing formula. For each item listed in the selected store, we compute the expected selling price you would assign based on your rules, and then compare it to the buying price in that store.

You'll define:

  • The store you want to analyze
  • Your pricing formula (automatically selected)
  • The minimum markup you want (for example, at least 50% profit)

Once the analysis is complete, you'll get a table listing all potentially profitable items (parts and minifigures) based on your criteria.

Browsing the results

The results are displayed in the usual BL Metrics layout, enriched with key columns:

  • Store price: the current price in the selected store
  • Your smart price: calculated using your pricing formula
  • Markup: the percentage difference between the store price and your smart price

You'll also see all standard pricing data, such as 6-month averages, sell-through rates, demand, and more, so you can quickly judge if the item is truly worth buying.

If an item has a remark (e.g. damaged or incomplete), it will be noted directly in the table. You can easily filter out or delete these rows to clean up your results and focus on the most interesting deals.

Exporting your selection

Once you've reviewed your list and possibly cleaned it up, you can export the results in two formats:

  • BSX (BrickStore): If you want to do additional edits or planning before placing your order
  • BrickLink XML: Ready to paste directly into your BrickLink wanted list

The smart price will also appear in the remarks field, making it easier to track your margin when browsing the store manually.

What's included (and what's not)

  • Only parts and minifigures are analyzed, not sets or other item types
  • All prices include VAT if the store has it enabled
  • Shipping costs are not taken into account, be sure to include them in your final decision

Conclusion

The Store Arbitrage tool gives you a clear advantage when sourcing inventory. Whether you're scouting opportunities, filling gaps, or simply looking to increase your margins, this feature lets you buy smart, and sell even smarter.