They were household names for decades, and they still hold an important place in our collective consciousness. But these once-bright business stars are dimming, and may soon fade out entirely.
RadioShack may have wasted money on a Super Bowl ad back in February. The retailer is still losing money and sales are plunging. The company's future is in serious doubt.
Sears used to be an American retail icon. Ditto for Sears-owned Kmart. But with sales plunging and losses mounting, the only thing left for Sears to do is sell assets and close stores. That's not a reason to buy the stock.