Super Micro Computer Inc. shares plunged the most in nine months after the company lowered its fiscal-year revenue forecast, raising questions about sales and pricing pressures around powerful AI servers.

The server maker’s forecast is lower than it was earlier this year, but analysts seem doubtful about the new target as well — and worried about competition.

We recently published 10 Stocks Taking the Worst Hit. Super Micro Computer, Inc. (NASDAQ:SMCI) is one of the worst-performing stocks on Wednesday. Super Micro Computer dropped its share prices by 18.29 percent on Wednesday to end at $46.