According to CoinMeta, in the past 7 days, the circulation of USDC has increased by about 300 million coins, bringing the total circulation to 74.6 billion coins. As of September 21st, approximately 10.1 billion USDC were issued and about 9.8 billion USDC were redeemed. The reserve amount of USDC is around 74.8 billion US dollars, of which overnight reverse treasury bond repurchases account for about 41.2 billion US dollars, treasury bonds with a maturity of less than 3 months amount to about 26.5 billion US dollars, deposits from systemically important institutions are about 5.9 billion US dollars, and other bank deposits amount to about 1.2 billion US dollars.