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SPRD connects to 10 resale marketplaces and combines their data into a unified view.

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How It Works

  1. Collection — SPRD periodically fetches pricing from each marketplace
  2. Normalization — Prices, sizes, and conditions are standardized so you can compare apples to apples
  3. Merging — Data from all marketplaces is combined into a single orderbook per product and size
  4. Display — You see the full picture in the orderbook, charts, and spread views

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What Each Marketplace Provides

Not every marketplace provides the same type of data:
MarketplaceBidsAsksTrades
StockXYesYesYes
GOATYesYesYes
eBay—Yes—
RedditYesYes—
Grailed—Yes—
Depop—Yes—
Mercari—Yes—
Facebook—Yes—
OfferUp—Yes—
Amazon—Yes—
Bids = what buyers are offering to pay. Asks = what sellers are listing at. Trades = completed sales. StockX and GOAT operate as bid/ask exchanges, so they provide the richest data. Other marketplaces are listing-based, so their prices show up as asks.

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Product Matching

Products are matched across marketplaces using SKU (style code) to make sure you’re always comparing the exact same item.