Sticking to shareholder-value theories is nearly impossible.

In some cases, the difference between a winner and loser is often in the eye of the beholder--who can be a victim or a beneficiary--or simply a political ideologue. That’s why we want readers to weigh in and vote on a variety of people and concepts. We’ll report back with results and rankings on December 1.

Apple's iPhone made its long-awaited formal debut in the world's most populous mobile phone market, without a key feature and at higher prices than widely available black market models.

Activist investor Carl Icahn is resigning from Yahoo's board of directors because he no longer has enough time to devote to the Internet company.

Stocks finished lower after well-known banking analyst Dick Bove downgraded his rating on Wells Fargo.

Stocks advanced Wednesday as investors were encouraged by a few earnings reports, including Morgan Stanley, Yahoo and SanDisk. The VIX, widely considered the best gauge of fear in the market, dropped to just above 20.

Stocks opened lower Wednesday as a raft of companies beating earning estimates but failed to impress investors.

Earnings season continues in earnest Wednesday, as we roll on with a week that will ultimately see 25 percent of the S&P 500 report their quarterly numbers. 

Stocks retreated Tuesday after several earnings reports beat expectations but economic numbers missed their targets.  The Dow shed more than 50 points, or 0.5 percent, but still held above 10,000. The S&P and Nasdaq each lost about 0.6 percent.

Stocks retreated Tuesday after several earnings reports beat expectations but economic numbers missed their targets.  Apple and Caterpillar surged after their earnings blew past forecasts.

Futures were poised for a modestly higher open on the strength of more earnings surprises from some of Wall Street's leading companies.

There is a real risk of a double-dip recession and the market is acting in a "schizophrenic" way, which could cause a "bloodbath" for investors, billionaire investor Carl Icahn told CNBC Friday.

Don’t look now, but the world is being taken over by widgets. CNBC Contributor David Pogue says even the leading ones leave a lot to be desired.

The company will introduce a long-awaited system that will instantly match ad buyers with ad sellers when a customer visits a Web site, reports The New York Times.