Riot Platforms, Inc. (NASDAQ:RIOT) is among the best cryptocurrency stocks to buy right now. This bitcoin stock has gained almost 140% in the past 12 months. On April 21, Piper Sandler lifted its price target on Riot Platforms, Inc. (NASDAQ:RIOT) to $23 from $21 and reiterated an Overweight rating on the stock. The firm based its price target hike on a revised sum-of-the-parts valuation. Riot Platforms Inc (RIOT) Beyond Bitcoin: You Want to Watch This Space Piper Sandler noted that the Bitcoin mining co ...