HFT Co-Location

HFT co-location is the practice of placing trading servers in the same physical data center as the exchange's matching engine. This minimizes the physical distance data must travel, significantly reducing latency for high-frequency traders.

In the context of digital assets, this is often replicated through cloud-based proximity or direct API peering with centralized exchanges. The goal is to receive market data faster and execute orders before competitors, which is essential for capturing ephemeral arbitrage opportunities.

While it provides a competitive advantage, it also raises concerns about market fairness and the barrier to entry for smaller participants. It is a cornerstone of modern market microstructure, defining the speed at which price discovery occurs.