Troubled bookseller Borders Group Inc
The company said it was notified on Thursday it was not in compliance with a standard requiring shares to maintain an average closing price of $1.00 over a 30 day trading period. Borders has six months to fix the problem.
Shares last hit $1.00 on January 28.
Borders, which operates 500 namesake stores, is the second-largest book chain in the United States that has been struggling for years with sliding sales and most recently with a cash crunch.
It has said that it may need to explore a restructuring under court supervision, which could mean a bankruptcy filing.
Borders shares closed at 39 cents, down 1.75 percent, on Friday on the New York Stock Exchange.
(Reporting by Alexandria Sage; editing by Andre Grenon)