What Is High-Frequency Trading?
High-frequency trading (HFT) uses sophisticated algorithms and ultra-low-latency infrastructure to execute thousands to millions of trades per second. HFT firms profit from tiny price discrepancies that exist for milliseconds — capturing fractions of a cent per trade but doing so at massive volume.
How High-Frequency Trading Works
In crypto, HFT operates through market making (providing liquidity and earning the spread), statistical arbitrage (exploiting price differences across exchanges), and MEV extraction (front-running or sandwiching DeFi transactions). HFT firms invest heavily in co-location (placing servers physically near exchange matching engines) and custom hardware to shave microseconds off execution times.
Why It Matters for Traders
Retail traders cannot compete with HFT on speed. Instead, the strategic response is to operate on timeframes where HFT's speed advantage is irrelevant — swing trading, position trading, and strategies based on on-chain data that unfold over hours or days. Understanding that HFT exists helps explain why many short-timeframe strategies that backtest well fail in live markets.
