Grayscale Bitcoin Trust ($GBTC) is currently the largest listed cryptocurrency asset with $30.17 billion in assets under management. The firm currently holds more than 655,730 BTC and the security is tradable in the United States through over-the-counter markets.How is GBTC different from a Bitcoin ETF?The fund was launched in 2013 and the Grayscale Bitcoin Trust became the … [Read more...] about Grayscale’s Bitcoin premium has dropped to record lows below zero