Shares in Riot Blockchain Inc. plummeted more than 33 percent in Friday trading on the day the company was investigated by CNBC.
CNBC reported about "questionable moves" made by the company's executives, including CEO John O'Rourke, and added "a number of red flags in the company's SEC filings also might make investors leery."
The report sent shares in the Castle Rock cryptocurrency company (Nasdaq: RIOT) falling Friday, as they fell $5.74 to close down at $11.46.
Read more at the Denver Business Journal: http://bit.ly/2HtxFwR