Arbitrage Parity

Parity

Arbitrage parity, within the context of cryptocurrency derivatives, represents a no-arbitrage condition predicated on the theoretical equivalence of prices across related assets or contracts. It fundamentally asserts that the price difference between a spot cryptocurrency and its associated derivative, such as a perpetual futures contract or an options contract, should reflect the cost of carry, encompassing factors like funding rates, collateral requirements, and storage expenses. Deviations from this parity signal potential arbitrage opportunities, where traders can profit by simultaneously buying the undervalued asset and selling the overvalued one, thereby restoring equilibrium. The efficiency of this relationship is a key indicator of market depth and liquidity.