The 'Free Money' Trade
Before they were villains, Su Zhu and Kyle Davies of Three Arrows Capital (3AC) were seen as crypto geniuses. One of their signature moves was a seemingly foolproof arbitrage trade involving the Grayscale Bitcoin Trust, or GBTC. For years, GBTC was one
of the only ways traditional investors could get Bitcoin exposure in a regular brokerage account. Because of this exclusive access, shares of the trust consistently traded at a high premium—meaning one share of GBTC was worth significantly more than the actual Bitcoin it represented. Hedge funds like 3AC could buy Bitcoin, give it to Grayscale in exchange for GBTC shares at their base value, wait for a six-month lockup period to end, and then sell those shares on the open market for an instant, high-premium profit. It was called 'the widowmaker trade' in reverse; it felt like guaranteed money.
The Hidden Detail: When the Premium Vanished
The hidden detail at the heart of 3AC’s collapse was simple: what happens when the 'guaranteed' premium disappears? In early 2021, the market dynamics shifted. New, competing Bitcoin investment products emerged, and the initial hype cooled. Suddenly, the once-reliable GBTC premium began to shrink. Then, for the first time in its history, it flipped to a discount, meaning the shares were trading for less than the value of the Bitcoin they held. This was the ticking time bomb. 3AC hadn’t just been making this trade; they had industrialized it, becoming the largest holder of GBTC with over $1 billion invested. They used massive amounts of borrowed money—leverage—to amplify their returns, assuming the premium would last forever. When it flipped to a discount, their 'free money' machine went into reverse, and their locked-up shares were suddenly worth far less than the Bitcoin they had used to acquire them. The trade that built their empire was now a black hole, burning cash.
From Bad Bet to Contagion
A huge, bleeding loss on the GBTC trade would have been bad enough. But it was compounded by what 3AC did next. Instead of de-risking, they doubled down. To make back their losses, they plunged hundreds of millions of dollars into even riskier ventures, most notably the Terra/LUNA ecosystem, a so-called 'stablecoin' project. In May 2022, Terra/LUNA collapsed in a spectacular, near-instant death spiral, wiping out 3AC's quarter-billion-dollar investment and punching a catastrophic hole in their already-damaged balance sheet. This was the final nail in the coffin. With their GBTC position underwater and their LUNA bet vaporized, lenders who had given them billions started making margin calls—demanding their money back. But the money wasn't there. 3AC had been misleading creditors about its financial health and the scale of its exposure.
The Unraveling
In June 2022, Three Arrows Capital began missing margin calls, effectively ghosting the firms that had lent it a fortune. The fallout was swift and brutal. A court in the British Virgin Islands ordered the fund into liquidation. Bankruptcy filings would later reveal the shocking scale of the failure: more than $3.5 billion owed to 27 different companies. The collapse created a devastating contagion, pulling other major crypto lenders like Voyager Digital and Celsius, who had significant exposure to 3AC, down with it. The story of 3AC's implosion wasn't just about the broader crypto market falling. It was a story that started with one specific, over-leveraged bet that went wrong, and the desperate, reckless attempts to fix it that ended up burning the whole house down.
