Crypto asset manager Grayscale Investments announced today that the Grayscale Bitcoin Mini Trust (ticker: BTC) has begun trading on the New York Stock Exchange Arca today United States 4:00 a.m. ET (18:00 Beijing time) as a spot bitcoin ETP. BTC is listed as a derivative product of Grayscale's flagship fund, GBTC, with a management fee of 0.15%.