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What are perps, anyway? Everything you need to know about crypto’s hottest trading instrument

Reported by Coindesk
Jul 27, 2026· 2 min read
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Key Takeaways
  • • Perpetual swaps (perps) are the dominant trading instrument in crypto markets, processing an estimated $40 trillion to $50 trillion annually in volume—significantly larger than spot trading volumes.
  • • Perps enable leveraged exposure to cryptocurrency prices without requiring ownership of the underlying asset, making them the primary tool for professional traders, hedge funds, and retail speculators seeking directional positioning.
  • • BitMEX, founded by Arthur Hayes and Ben Delo in 2014, launched the perpetual swap contract in 2016, solving a critical market structure problem: traditional crypto futures contracts expired on fixed dates, forcing traders to roll positions or accept forced liquidation.
  • • The perpetual swap design eliminates expiry dates entirely, allowing traders to maintain positions indefinitely without settlement dates or rolling requirements—a structural innovation that addressed persistent basis confusion and position closure issues that plagued earlier derivatives products.
Summary
Perpetual swaps, commonly referred to as perps or perpetual futures, have emerged as the dominant trading instrument in cryptocurrency markets, with annual trading volumes estimated between $40 trillion and $50 trillion. This volume significantly exceeds spot trading activity and reflects broad adoption across professional institutional investors, hedge funds, and retail speculators. The product appeals to traders seeking leveraged price exposure to assets like Bitcoin and Ethereum without requiring direct ownership of the underlying cryptocurrency.

The innovation that created perps was born from structural inefficiencies in earlier crypto derivatives markets. In traditional finance, leveraged exposure typically comes through futures contracts—agreements to buy or sell an asset at a predetermined price on a specific settlement date. When the contract matures, it expires and settles, forcing traders to roll their positions into subsequent contracts or close their exposure entirely. This mechanics created meaningful problems in crypto's early trading ecosystem.

BitMEX, the derivatives exchange founded by Arthur Hayes and Ben Delo in 2014, attempted to solve these issues through successive contract duration reductions—moving from quarterly to monthly to weekly to 48-hour to 24-hour expirations. However, these iterative changes proved insufficient. The persistent problems included basis confusion (futures trading at premiums to spot prices) and involuntary position closure at expiration dates, both of which created friction for retail traders seeking straightforward directional exposure.

Ben Delo's development of the perpetual swap contract, which BitMEX launched in 2016, fundamentally resolved these structural constraints. By eliminating the expiry date entirely, the perpetual swap created a derivative contract that tracks an asset's price indefinitely with no settlement date, no rolling requirement, and no forced closure. Traders can maintain positions for hours or years without operational friction, transforming how leveraged crypto trading operates. This design innovation established the product architecture that now dominates global crypto trading volumes.

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Coindesk What are perps, anyway? Everything you need to know about crypto’s hottest trading instrument