NEW YORK (Dow Jones/AP) _ Shares of computer hardware maker O2Micro International Ltd. tumbled 14 percent on above-average volume Monday amid talk that a Cambridge-based research firm, Off Wall Street, had put out a negative report on the company.
O2Micro spokesman Gil Goodrich said he heard talk of the report from Off Wall Street but hadn’t yet seen it.
Off Wall Street, a pricey firm that sells research based on forensic accounting methods, declined to comment on the report.
The firm seeks to identify stocks ``that have the potential to make 50 percent downward percentage moves,″ according to its corporate Web site. Clients pay $50,000 or more a year for the research.
O2Micro makes chips for mobile phones and laptop computers. It is based in the Cayman Islands.
In 4 p.m. trading O2Micro shares changed hands on the Nasdaq Stock Market at $18.74, down $3.16, or 14.4 percent.