Options arbitrage

The same option costs different amounts on four venues. We show where to buy it cheaper and sell it dearer — in dollars per contract.

Demo mode: sample data. Live prices turn on after deploying the Worker (API_BASE in site.config.mjs).
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SpreadRadar bot on Telegram

P2P rates from six exchanges, funding rates and cross-exchange spreads — right in your chat, no sign-up.

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SpreadRadar for Android

Version 1.0.01.3 MBAndroid 5.0+
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What the scanner compares

An option is uniquely defined by three things: the underlying coin, the strike and the expiry date. If two venues list a contract with the same three, it is the same instrument, and the price difference is the opportunity.

Why dollars, not percent

Percentages mislead on options. A twenty-five dollar contract with an eight dollar gap reads as «thirty-five percent», yet that is one tick. Conversely a deep in-the-money option shows half a percent, which is a thousand dollars per contract.

The tick column shows the venue’s minimum price step. Coin-quoted venues use 0.0001 of the coin — about eight dollars for bitcoin.

What it does not do

  • No fees included.
  • No book depth.
  • No reconciling of settlement currencies: Deribit and OKX quote in coin, Bybit and Binance in dollars.