 Shares of artificial intelligence and digital media specialist Remark Holdings NASDAQ: MARK are tumbling 25 in morning trading after a report of disastrous first-quarter earnings. The combined impact of these factors prevented Remark from rolling out new products while delaying testing and customization work on other projects. Remark Holdings stock has soared in 2020, rising from a literal penny stock to reach a high of around 3.50 in May. Those gains have since diminished, and today the shares are plunging. 