Shares of server maker Super Micro Computer (SMCI) have plunged 15% on news that the U.S. Justice Department (DOJ) has opened a probe into the company. The Wall Street Journal was the first to report on the investigation, which is in its early stages.

All of this sounds fantastic, but in recent weeks Supermicro has faced some headwinds that have translated into declines in the share price. The stock has lost about 18% since a short report in late August that alleged troubles at the company. On top of this, investors worried as Supermicro delayed its 10-K annual report.

A Loop Capital analyst adjusted their price target for Super Micro Computer Inc (NASDAQ:SMCI) stock on Monday, reducing it from $1,500 to $1,000, citing the AI server maker’s efforts to restore its gross margin (GM) and operating margin (OM) to

Server maker Super Micro Computer’s ($SMCI) stock has been under attack in recent months ever since notorious short seller Hindenburg Research

Super Micro’s stock took a deep dive Thursday, after the Wall Street Journal reported that the server maker and artificial-intelligence play was being investigated by the U.S. Justice Department.

Key Takeaways Super Micro Computer, or Supermicro, reportedly is under investigation by federal officials over questions about its accounting.The Wall Street Journal said the probe followed a scathing report in August from short seller Hindenberg Research that claimed improprieties at the computer server manufacturer.

Short-seller Hindenburg Research last month published a report that alleged it ‘found glaring accounting red flags’ at the server maker.

Super Micro shares tumbled Thursday after the Department of Justice opened a probe into the company, according to a report from The Wall Street Journal. Super Micro makes computers that companies use as servers for websites,