KEY POINTS
  • Here's how the biggest collapse in crypto history went down — and what happens next.
Samuel Bankman-Fried's poster in downtown San Francisco.

The Kimchi Swap put Sam Bankman-Fried on the map.

The year was 2017, and the ex-Jane Street Capital quant trader noticed something funny when he looked at the page on CoinMarketCap.com listing the price of bitcoin on exchanges around the world. Today, that price is pretty much uniform across the exchanges, but back then, Bankman-Fried previously told CNBC, he would sometimes see a 60% difference in the value of the coin. His immediate instinct, he said, was to get in on the arbitrage trade — buying bitcoin on one exchange, selling it back on another exchange, and then earning a profit equivalent to the price spread.