RadioShack, whose sales have been in a free-fall since 2010, said it was working with its lenders and landlords to restructure its debt and cut costs. [ID:nPn4jY6QZ]
RadioShack shares were down 3.2 percent at 90 cents in volatile premarket trading.
The company raised doubts about its ability to continue as a going concern and said it may have to liquidate as a last resort.
RadioShack stores, which have been around for more than 90 years, were once the go-to shops for budding innovators and engineers for products that ranged from vacuum tube speakers to the first mass-produced PC.
The company ended the second quarter with total liquidity of $182.5 million. Its total debt was $658.0 million, which matures between 2018 and 2019.
Its net loss widened to $137.4 million, or $1.35 per share, in the second quarter ended Aug. 2 from $52.2 million, or 51 cents per share, a year earlier.
Revenue fell nearly 22 percent to $673.8 million.
Same-store sales declined 20 percent.
