Understanding Perpetual Swaps: The Dominant Force in Crypto Trading

Perpetual swaps, or 'perps', have become the go-to instrument for professional traders, hedge funds, and retail speculators seeking leveraged exposure to cryptocurrency prices without directly owning the assets. These swaps process an estimated $40 trillion to $50 trillion annually, surpassing spot trading volumes. Despite their widespread use, the underlying mechanics of perps remain poorly understood by many. To grasp the concept of perps, it's essential to consider their origins. In traditional finance, futures contracts provide leveraged exposure to assets, with an agreement to buy or sell at a set price on a specific date. However, this approach created persistent issues in crypto's early days, such as futures trading at a premium to spot prices and positions closing upon contract expiration. BitMEX addressed these problems by introducing perpetual swaps in 2016, which eliminated expiry dates and enabled traders to hold positions indefinitely. A key mechanism, known as the funding rate, ensures the contract price remains aligned with the spot price of the underlying asset. Every eight hours, a payment is exchanged between traders on opposite sides of the market, with the rate calculated based on the deviation from spot prices. This self-correcting equilibrium helps maintain price stability. Perpetual swaps also offer high leverage, allowing traders to control larger positions with lower capital. To manage the associated risks, exchanges use automated liquidation systems to close positions before they incur significant losses. The significance of perpetual swaps extends beyond crypto, with regulators exploring their application to traditional assets. The structure developed by BitMEX has proven durable, and perps have become a primary venue for price discovery in crypto, with price movements often originating in perp markets before spreading to spot markets.