According to the source, FTX did not have nearly enough on hand.
Its biggest customer, according to a source, was the hedge fund Alameda.
In general, mixing customer funds with counterparties and trading them without explicit consent, according to U.S. securities law, is illegal.
Sam Bankman-Fried declined to comment on allegations of misappropriating customer funds, but did say its recent bankruptcy filing was a result of issues with a leveraged trading position.
The blurred lines between FTX and Alameda Research resulted in a massive liquidity crisis for both companies.