Futures vs Perpetuals for Algo Traders

If you are building strategies for crypto futures algo trading, understanding the instrument you are trading is non-negotiable. Futures and perpetuals look similar but behave very differently in a systematic strategy.

Expiry and Basis

Traditional futures have an expiry date. As expiry approaches, the basis (difference between futures and spot price) converges to zero. This creates a predictable dynamic that many algo trading strategies exploit through basis trading.

Perpetual Swaps and Funding

Perpetuals never expire. Instead, they use a funding rate mechanism to keep the perpetual price anchored to spot. When longs dominate, longs pay shorts. When shorts dominate, shorts pay longs. This funding cost or income is a critical input for any automated crypto trading strategy involving perpetuals.

Implications for Your Bot

If you hold positions for hours or days, always factor funding into your PnL calculations. Ignoring funding on a leveraged perpetual position can turn a profitable trade into a loss. Many delta exchange algo trading systems have a dedicated funding tracker module for exactly this reason.