Tether, the world's largest stablecoin by market value, said on Friday it had reserves worth $66.4 billion at the end of June, down from $82.4 billion at the end of March.
A US bank regulator ordered crypto exchange FTX on Friday to halt what it called "false and misleading" claims the exchange had made about whether funds at the company are insured by the government.
Crypto broker Genesis Trading on Wednesday named chief operating officer Derar Islim as the interim head and said it had reduced its headcount by 20 per cent.