According to ChainCatcher, Grayscale revealed some details of its spin-off fund Bitcoin Mini Trust (BTC) in the latest document, including a management fee of 0.15%, which is lower than the fee of the parent fund GBTC after listing. The document also gave an example of the amount of BTC that Grayscale will inject into the Mini Fund, which is 63,204 bitcoins, accounting for about 10% of GBTC's existing assets. Shares of the BTC trust fund will be automatically issued and distributed to GBTC shareholders.

Grayscale's launch of Bitcoin Mini Trust aims to provide GBTC investors with a more competitive, low-cost option to cope with other Bitcoin ETF products approved in January.