MARA Holdings, Inc. (NASDAQ:MARA) is among the 11 Best Bitcoin and Blockchain Stocks to Invest in. Morgan Stanley Initiates Coverage on MARA Holdings, Inc. (MARA) MARA Holdings, Inc. (NASDAQ:MARA) is among the Best Bitcoin Stocks.   On February 9, Morgan Stanley started coverage of MARA Holdings, Inc. (NASDAQ:MARA) with an Underweight rating and an $8 price target. The corporation pointed out that share value is heavily influenced by bitcoin mining economics and that conversions from bitcoin mining to d ...