Bid-Ask Spread Arbitrage

Bid-Ask Spread Arbitrage is a trading strategy that profits from the difference between the highest price a buyer is willing to pay and the lowest price a seller is willing to accept for an asset. In liquid markets, this spread represents the cost of immediate execution.

Arbitrageurs identify instances where this spread is inefficiently wide across different exchanges or platforms and simultaneously buy on one venue while selling on another. By capturing this price gap, they earn a risk-adjusted profit while simultaneously narrowing the spread, which enhances overall market efficiency.

This activity is a cornerstone of market microstructure, ensuring that price discovery remains consistent across fragmented digital asset venues. It requires high-frequency execution and low latency to capture the fleeting differences before other participants close the gap.

The strategy is essential for maintaining liquidity in order books, as it provides constant buying and selling pressure.