New York Stock Exchange, lower Manhattan, New York City.

Negative earnings growth for the third quarter? The jury is still out.

New York Stock Exchange, lower Manhattan, New York City.

It's the Big Debate on the Street today: Are earnings at a trough or not? Exhibit 1 for bears: Earnings for the S&P 500 index are expected to be negative for the third quarter, and earnings growth expectations of 10 percent for the fourth quarter are coming down fast. Some expect earnings for 2013 to be lower than 2012.