How SneakerPing price data works

Where the data comes from

We do not have a data partnership with StockX or GOAT, and we do not receive a direct feed from either. For eBay we search new and new-other condition Buy It Now listings. Listings sold as a box only, and accessory listings such as laces and cleaning kits, are filtered out. Used listings are included only for a size with no new listings at all, so a used pair never undercuts the price of a new one.

How often it refreshes

• Sales history and current asks, across the catalogCollection runs 12 times a day, every 2 hours. Each pass resumes where the previous one stopped instead of repeating work, in priority order: sneakers featured in our posts, then sneakers people track, then recent releases, then the wider catalog.
• Sneakers on a WatchlistChecked every hour for any tracked shoe and size still missing today’s data, plus a lighter asks-only refresh every 6 hours.
• Highest-priority productsEvery 2 hours, up to 10 of the highest-priority products whose data is more than 4 hours old are refreshed.
• Price-target alertsEvaluated every hour, and again after each Watchlist refresh batch.
• Other alert typesEvaluated every 4 hours, with a full evaluation of every active tracker three times a day.
• Price forecastsOnce a day. Inputs are rebuilt at 04:00 UTC and forecasts at 05:00 UTC.
• Undervalued listOnce a day at 06:35 UTC.
• Worth It scoresOnce a week, on Sundays.
• Market IndexComputed weekly, published quarterly as the Sneaker Market Report.

What this means for alerts

An alert can only fire after a new price has been collected and then evaluated. Both steps run on the schedules above, so expect an alert hours after the market moves. A listing that appears and sells within minutes can come and go between two collections, and we will not see it.

Why prices differ between marketplaces

Fees and shipping are added at checkout

The asks we show are the listed price, before the marketplace adds its buyer fees, shipping and tax. Each marketplace charges those differently, so the lowest ask is not always the lowest checkout total. Seller fees differ too, which changes where sellers set their asks; see GOAT fees vs StockX fees.

Every size is its own market

Sellers price each size separately. A headline "from" price is the lowest ask across all sizes, which is often an uncommon size. Your size can cost much more.

An ask is not a sale

An ask is what a seller hopes to get. A completed sale is what a buyer actually paid. The two can be far apart, especially in sizes that rarely trade. StockX bids, where we have them, show the other side: the most a buyer has offered.

Condition and seller location

eBay mixes new and new-other listings, and for sizes with no new listings, used ones. We search eBay sellers in every country. A listing from outside the US is converted to dollars and labeled with the seller's country, because the converted price leaves out international shipping, duties and transit time.

Timing

Each marketplace is collected at a slightly different moment, and prices keep moving after we collect them. Two prices captured a few hours apart can disagree simply because one of them is older.

Prices we reject

An eBay ask below 25% of the shoe's StockX or GOAT ask is dropped as a likely accessory, box-only or mislabeled listing. When one marketplace's ask diverges sharply from the others, we drop that ask rather than publish it.

Size-level and all-sizes prices

A size-level ask is the lowest ask for that exact size on that marketplace. An all-sizes ask is the lowest ask across every size. It is a floor, not a typical price.

An all-sizes floor also drifts down after a release even when real prices hold steady, because more pairs get listed and the lowest of a growing set keeps falling. That is why price history, trends and the Market Index are built from completed sales, not from asks.

Size labels are normalized so the same size lines up across all three marketplaces. GOAT's size-level sales cover a shorter recent window than its all-sizes daily totals, so GOAT size history is thinner than StockX's.

Forecasts, Worth It and Undervalued

Price forecasts

A forecast starts from the shoe's current price and applies the typical price change seen across many shoes at the same stage of release (for example, the first two weeks after launch, or more than 60 days after) over the same period. The range shows the middle two-thirds of those historical moves. It is a base rate drawn from similar shoes, not a call about this particular pair.

We moved to this approach in September 2026 after testing our earlier forecast model against a simple rule: assume the price stays the same. The simple rule had lower error at both 7 and 30 days. We have not shown that our 30-day up or down calls beat chance, so treat a forecast as context, not a reason to buy or sell.

Worth It score

A 0 to 10 score, recomputed weekly, built from five parts: price versus retail (25%), the 30-day forecast (25%), price stability and forecast confidence (20%), how often the shoe trades (15%), and social buzz (15%). The forecast part only counts in a shoe's favor when forecast confidence is at least 50 and the price is not already falling sharply. It is a summary of the data, not a guarantee of value.

Undervalued

A shoe qualifies when it trades at least 5% below its own 90-day average price, released more than 30 days ago, and has sold roughly twice or more in the last 30 days. The discount is the largest part of its ranking (40%), and no predicted price change is used. See the Undervalued list.

Market Index and quarterly reports

The Sneaker Market Report is built from completed StockX and GOAT sales, and each quarterly report carries its own methodology section. The full list of reports is on the press page, and the current index is at Market Index.

What we don't have

• No direct feed from StockX or GOAT. Their prices come through third-party providers. When a provider errors or limits our request rate, some products miss a refresh that day. We record that as a failed collection, not as "no sales".
• No eBay sold prices. eBay figures are asks from active Buy It Now listings only. Auctions, bids and completed eBay sales are not included.
• Limited StockX bid coverage. Bids come from a single provider with a fixed monthly call allowance, so many products have asks but no bid.
• eBay daily search limit. eBay caps how many searches we can run per day. On a day the cap is reached, eBay prices can be missing until it resets.
• Not every product refreshes every day. Our main data provider limits how fast we can request prices, so collection runs in priority order. Sneakers people track come first; the long tail of the catalog is refreshed less often.
• Sparse sizes. Uncommon sizes can go weeks without a sale. Their size-level price may rest on asks alone, or be blank.
• No after-fee checkout price. We do not add buyer fees, shipping or tax to the asks we show.
• Three marketplaces only. Price history, forecasts, Worth It and the Market Index use StockX, GOAT and eBay data only. Other stores we link to are not part of those numbers.
• Forecast limits. Forecasts are base rates from similar shoes. We do not publish a claim that they predict where a specific shoe's price will go.

Questions and corrections

If a price looks wrong, email patrick@sneakerping.com with the shoe and size. Journalists citing our data can find reports and citation guidance on the press page. More about the team is on the about page.