Spread check: observed price vs market
What a buyer pays on public BTC order books compared with a market reference, captured daily. Snapshot: 2026-10-19 09:22:05 UTC · reference $82,855.77 (median of 5 venue mid prices).
Latest snapshot
History (2 days so far)
One point per venue per day. History builds as the daily job runs.
| Venue (order book) | Best ask | Mid | Ask vs market | Data |
|---|---|---|---|---|
 Kraken Pro order book | $82,853.10 | $82,853.05 | -0.0032% | public API |
 Bitstamp order book | $82,853.60 | $82,853.60 | -0.0026% | public API |
 Gemini exchange order book | $82,856.70 | $82,855.77 | +0.0011% | public API |
 Coinbase Exchange (Advanced order book) | $82,856.76 | $82,856.76 | +0.0012% | public API |
 Binance.US order book | $82,861.27 | $82,860.82 | +0.0066% | public API |
Can't be measured (yet)
Retail apps price recurring buys inside the app. None of these publish a key-free quote API, so we don't guess.
- StrikeNo public, key-free quote API. Strike publishes a 0.22% target spread instead.
- RiverNo public quote API found; River does not publish its spread size.
- Cash AppNo public quote API. Cash App states Auto Invest is spread-free.
- Robinhood CryptoNo public quote API. Robinhood discloses a ~0.95% market-maker rebate included in the spread.
- Swan BitcoinNo public quote API.
- Public (crypto)No public quote API.
- Coinbase simple / recurring buyConsumer price API returns spot for 'buy', so the app spread is not observable. The order-book row above is Coinbase Exchange, not the app's recurring buy.
- Kraken app recurring buy (Instant Buy)No public Instant Buy quote API. The order-book row above is Kraken Pro, not the recurring buy screen.
- Gemini app recurring buyNo public quote API for app (Instant/Recurring) orders. The order-book row above is the exchange book.
Methodology
Observed price vs market: each venue's best public order-book ask compared with the median mid price across responding venues, at one moment. Positive = buyer pays above market. Snapshot only; real fills depend on order size and timing. Retail app recurring-buy prices are not observable through public APIs.
Order-book asks on exchanges are usually within a few hundredths of a percent of market. App recurring buys can cost much more because of the spread. Strike publishes a 0.22% target. Robinhood discloses a 0.95% market-maker rebate included in its spread. Cash App says Auto Invest is spread-free. Those published figures are what the calculator uses.
Script: scripts/spread_check.py. Raw data: latest.json, history.json.