Transaction Cost Invariance

Cost

Transaction Cost Invariance, within cryptocurrency, options, and derivatives, postulates that post-trade adjustments in trading strategies should not materially alter profitability when accounting for all associated transaction costs. This principle acknowledges that real-world trading incurs expenses like exchange fees, slippage, and market impact, which must be integrated into any assessment of strategy performance. Consequently, a strategy’s theoretical edge must exceed the cumulative transaction costs to yield net positive returns, and invariance suggests this relationship remains consistent across minor variations in execution.