Here's Why Riot Blockchain Is Under Selling Pressure By: Benzinga via Benzinga December 13, 2017 at 11:06 AM EST Shares of Riot Blockchain Inc (NASDAQ: RIOT) soared to a new 52-week high of $33.27 Tuesday, but reversed course Wednesday and were down ... Read More >> Related Stocks: Overstock Com Ord Shs Riot Platforms Inc