Crypto Gloss

Arthur Hayes

Arthur Hayes is one of the most influential and controversial figures in crypto derivatives — co-founder and former CEO of BitMEX, the exchange that introduced the perpetual futures contract to crypto (now the dominant instrument in crypto trading by volume), convicted in 2022 of willfully failing to maintain an AML program and sentenced to probation, and subsequently returning to crypto as the CIO of Maelstrom (his family office) and as one of the most widely-read macro commentators in the space through his Substack essays.

Early Life and Career

Background:

  • Born: Jamaica, 1985; grew up in Detroit
  • Education: Finance, Wharton School, University of Pennsylvania
  • Early career: Deutsche Bank equity derivatives trader in Hong Kong (2008–2013)
  • The financial crisis and subsequent central bank money printing formatively shaped his macro worldview

Hayes discovered Bitcoin in 2013 while working in Hong Kong trading equities derivatives. He recognized that professional derivatives products didn’t exist for Bitcoin and saw a gap for institutional-grade crypto futures trading.

BitMEX (Bitcoin Mercantile Exchange)

Founded: 2014, Hong Kong. Co-founders: Arthur Hayes, Samuel Reed (CTO), Ben Delo (UK)

The Perpetual Contract Invention

BitMEX’s most important contribution to crypto: the perpetual futures contract (or “perp”):

  • A futures-like leveraged position with no expiry date
  • Price stays anchored to spot via funding rates (longs pay shorts when perp > spot; shorts pay longs when perp < spot)
  • Allows traders to hold leveraged long/short exposure indefinitely without rolling contracts
  • Result: Perps now account for ~70–80% of all crypto derivatives volume globally

BitMEX at peak (2019–2020):

  • Largest Bitcoin derivatives exchange by volume globally
  • Processing $5–10B/day in BTC perpetuals at peak
  • Highly leveraged trading (100x leverage) attracted traders and notoriety
  • Liquidation cascades during volatile markets (“rekt” became a meme from BitMEX culture)

Bitcoin as the settlement asset:

BitMEX settled all contracts in Bitcoin (not USD) — this “inverse perpetual” design meant positions were denominated in BTC, creating additional complexity and volatility-convexity that many traders didn’t fully understand.

CFTC Case and Resignation

October 2020: US DOJ and CFTC filed charges against Hayes, Reed, Delo, and BitMEX itself for:

  1. Operating an unregistered futures exchange accessible to US persons
  2. Failing to implement adequate AML/KYC procedures
  3. Willful failure to maintain proper policies to prevent money laundering

2022 Settlement:

  • Hayes pled guilty to willfully failing to cause BitMEX to maintain an AML program
  • Sentenced to 2 years’ probation, $10M fine
  • Did not serve prison time; lived in New York during probation
  • Reed received similar sentence; Delo settled separately

Substack — Crypto Macro Commentary

Hayes writes on Substack (“Crypto Trader Digest”) — macro-focused essays about Bitcoin, inflation, central bank policy, and crypto market dynamics:

  • Independent from any trading/exchange business
  • Written in a distinctive gonzo style blending personal anecdote with macro analysis
  • Among the most-read writing in crypto; often predictive of subsequent market movements
  • Hayes’s positioning commentary is known to move markets

Major themes:

  • Bitcoin as digital gold/inflation hedge
  • US dollar reserve currency decline and crypto implications
  • Impact of Federal Reserve and Bank of Japan policy on risk assets including crypto
  • ETH vs. BTC macro framing

Maelstrom

After his probation ended, Hayes established Maelstrom — a family office for direct investments in crypto startups:

  • CIO: Arthur Hayes
  • Focus: Early-stage token investments, especially infrastructure, DeFi, and Bitcoin-adjacent
  • Notable early investment: Ethena (USDe stablecoin protocol)
  • Hayes openly writes about Maelstrom portfolio companies on Substack (with disclosures)

History

  • 2008–2013 — Deutsche Bank equity derivatives trader in Hong Kong; exposed to macro finance during the global financial crisis
  • 2013 — Discovers Bitcoin; identifies gap in professional derivatives infrastructure
  • 2014 — Co-founds BitMEX with Samuel Reed and Ben Delo in Hong Kong
  • 2016–2020 — BitMEX grows to become the largest Bitcoin derivatives exchange by volume; perpetual futures contract becomes the dominant crypto trading instrument
  • October 2020 — DOJ and CFTC file charges; Hayes publicly resigns as CEO of BitMEX
  • 2022 — Hayes pleads guilty to AML failure; sentenced to 2 years’ probation and $10M fine
  • 2023 — Probation ends; Maelstrom family office established; active crypto investing and public commentary resume
  • 2024 — Early Ethena investment proves profitable; Maelstrom portfolio expands; Substack commentary widely followed

Common Misconceptions

  • “BitMEX invented leverage trading in crypto.” — BitMEX popularized and made professional-grade leverage trading accessible to a broad crypto audience, but leveraged trading existed before BitMEX. BitMEX’s specific invention — the perpetual funding-rate mechanism — is what spread to every other exchange globally.
  • “Hayes’s CFTC plea meant he went to prison.” — Hayes was sentenced to probation and a fine, not prison time. He fulfilled his probation in New York and returned to public crypto activity. His business partner Ben Delo received a similar outcome.

Social Media Sentiment

  • X/Twitter: Arthur Hayes is one of the most followed and influential macro thinkers in crypto; his essays drive significant CT discussion on Bitcoin price cycles, macro positioning, and the dollar system; respected despite legal issues.
  • r/Bitcoin / r/CryptoCurrency: His macro-first perspective on Bitcoin timing and his “digital gold” framing are widely shared; occasional backlash over promotional Substack content for Maelstrom investments.
  • Financial media: Frequently cited in crypto and macro finance publications; BitMEX remains one of the most significant case studies in crypto derivatives and regulatory enforcement.

Last updated: 2026-04

Related Terms

See Also

  • BitMEX — the exchange Hayes co-founded; the institutional entry covering BitMEX’s role in crypto derivatives history
  • Perpetual Futures — the contract type BitMEX invented under Hayes’s leadership; now the dominant instrument in crypto trading
  • Funding Rate — the mechanism that keeps perpetual futures anchored to spot price; the key innovation in BitMEX’s perpetual design

Sources