Sears Holdings Corporation

Every bullish run or bearish retreat offers a great opportunity to learn something about the market and the publicly traded companies that make it happen. So what did 2012's monstrously good first quarter teach the observant investor?

The S&P 500 soared 12% during the first three months of 2012, and the tech-heavy Nasdaq managed a nearly 19% spurt. Those are good numbers even for a whole year -- but these seven investments beat the indexes by huge margins.

Best Buy has a big plan to cut its costs and regain its focus: closing stores, laying off employees, shifting its focus to smartphones and mobile gadgets, and slimming down margins. Only problem is, none of that is going to save it.

The S&P 500 gained 4.4% in January, the biggest increase for that month in 15 years. But the 10 best performers in the index had share gains for the month from 27% to a whopping 77%. Which are these rising stars -- and which might have more room to rise? Read on:

Walmart's conquest of of America embodies a decades-long drive toward the lowest common denominator, off-shoring jobs, maximizing profits and reducing quality. But is it a trend we can reverse? Deep in the heart of Ohio, a new store aims to try.

Recently, we've bidden farewell to Borders, Circuit City and Linens 'n Things. Here are five more once-thriving chains that are probably doomed thanks to lousy management or just being in the wrong business at the wrong time.

On Tuesday, Sears Holdings announced it would close as many as 120 Sears and Kmart stores after a holiday sales season in which it fell flat on its face. What Sears really needs is a new image -- an idea that will lure shoppers back. Could "Made in the USA" be it?

Shares of Sears Holdings fell 27% Tuesday on news that the retailer would close as many as 120 poorly performing Sears and Kmart stores -- an unusually harsh response to a cost-cutting measure. Clearly, investors are concerned that the problems run much deeper -- and they're right to worry.

Sears Holdings on Tuesday reported a sharp drop in holiday sales compared to a year ago, and said the results will force it to close 100 to 120 Sears and Kmart stores. The company said the stores to be closed have yet to be identified.

When Sears and Kmart were merged into Sears Holdings by Eddie Lampert, it looked like he had a reasonable plan to reinvigorate the two battered retailers. What went wrong? Just about everything.