How It Works

Arbitrage means buying an asset where it is cheap and selling it where it is expensive at the same time. This page explains how our scanner finds those moments and how to read the numbers on the site.

1. Collecting prices

We keep a live connection to every supported exchange and receive the best buy price (bid) and best sell price (ask) of each tracked pair, together with the amount available at that price.

2. Finding the gap

For every pair we compare each exchange with every other one. An opportunity exists when the bid on one exchange is higher than the ask on another:

• Buy exchange: where you can buy cheapest (lowest ask)
• Sell exchange: where you can sell highest (highest bid)
• Spread: how much higher the sell price is than the buy price, in percent

Only spreads above our minimum threshold are shown, because very small gaps are usually eaten by fees.

3. Estimating the profit

The "~Profit ($10)" column estimates what a 10 USD trade would earn after paying the trading commission on both the buy and the sell side. If the order book does not hold enough coins at the quoted price, the estimate is reduced to the amount that can actually be filled.

4. How long an opportunity lives

Every opportunity is recorded from the moment it appears until it disappears. A gap that closes and reopens within a couple of seconds is treated as the same opportunity. This history powers the daily and weekly rankings.

What the estimate does not include

• Withdrawal and network fees for moving funds between exchanges
• Price movement while your orders are being executed
• Exchange-specific fee discounts or VIP tiers

Delayed data for visitors

Visitors see prices and opportunities with a short delay. Registered users get faster data and can track the pairs and exchanges they care about.

Nothing on this site is investment advice. Please read our Risk Disclosure before trading.