According to CoinMeta data, the circulating supply of USDT is 183.761 billion US dollars, an increase of 39.7941 million US dollars from the previous day; the circulating supply of USDC is 75.467 billion US dollars, a decrease of 971 million US dollars from the previous day. CoinMeta data was read on September 26th at 10:15 AM (Beijing time; no update time provided by the source).