Understanding Perpetual Swaps: The Crypto Market's Dominant Trading Instrument

Perpetual swaps, also known as 'perps', have revolutionized the crypto trading landscape, handling an estimated $40 trillion to $50 trillion in annual volume. These financial instruments provide leveraged exposure to assets like bitcoin, allowing traders to speculate on price movements without actually owning the asset. Despite their widespread adoption, the inner workings of perpetual swaps remain poorly understood. To grasp the concept, it's essential to examine the traditional finance backdrop. In conventional markets, traders typically gain leveraged exposure through futures contracts, which involve agreeing to buy or sell an asset at a predetermined price on a specific date. However, this approach presented persistent issues in the crypto space. Futures contracts often traded at a premium to the spot price, causing confusion among retail traders seeking straightforward exposure. Furthermore, when contracts expired, positions were automatically closed, regardless of the trader's intentions. BitMEX, a derivatives exchange founded in 2014, attempted to address these problems by shortening contract durations, but this didn't provide a lasting solution. The breakthrough came with the introduction of perpetual swaps, which eliminated the expiry date altogether. This innovation, developed by Ben Delo, enabled traders to hold positions indefinitely, without the need for rolling or settlement. To maintain a stable price, a mechanism was implemented, where traders on opposite sides of the market exchange payments every eight hours. If the perpetual swap price deviates from the spot price, the funding rate is adjusted, creating a self-correcting equilibrium. This mechanism has become the industry standard, with all major derivatives exchanges adopting similar systems. Leverage is another key feature of perpetual swaps, allowing traders to control larger positions with limited capital. However, this also increases the risk of significant losses, prompting exchanges to implement automated liquidation systems to protect themselves. Perpetual swaps have become the primary venue for price discovery in the crypto market, with price movements often originating in these markets before spreading to spot markets. The concept has proven so durable that regulators are now exploring its application to traditional assets, with the potential for perpetual swaps on equities being listed on the CME.