The S&P 500 appeared likely to post a back-to-back daily drop amid investor concerns the US Federal Reserve's stimulus may be scaled back sooner than hoped and after weak data in China.

Summary: The Australian Dollar (ticker: FXA) has tumbled despite record-highs in the S&P 500 (ticker: SPY). Is the Aussie currency the canary in the coal mine, and does it point to a big S&P pullback?

Returning to the S&P 500, whose sole carrier is Southwest Airlines Co. (LUV), probably would draw new investors and mark a milestone in Delta's recovery since its removal in 2005 about a month before filing for bankruptcy.

Hedge funds gained 5.4 percent on average through May 10, compared with a 15.4 percent rise for the S&P 500 (SPX) and a 14.8 percent increase for the typical mutual fund, a team of Goldman Sachs analysts led by Amanda Sneider and David Kostin wrote ...

Just remember, when the fed hikes the S&P 500 ( SPX , quote ) will go up! If we are in a place where the fed begins to hike rates, albeit this is different formally than removing stimulus than the economy is on better footing, commodities are rallying ...

Miller Tabak's chief technical market analyst Jonathan Krinsky alerts clients about a "bearish shooting star" that will emerge on the S&P 500 charts today if the index closes around current levels. Here's Krinsky: NYSE composite volume is running 9 ...

If you're not already long, go long on the S&P 500 and then sell the December 175 calls for about $3.65 per share (as of the close on May 21, and with 100 shares in each contract, about $3,650 per contract).

�We are raising our S&P 500 dividend estimates and index return forecasts for 2013 through 2015. We expect S&P 500 index will rise by 5% from the current level to 1750 by year-end 2013, advance by 9% to 1900 in 2014, and climb by 10% to 2100 in 2015.

If the percentage of S&P 500 companies showing revenues below expectations remains at 47%, by the time they are done reporting their corporate earnings, the first quarter of 2013 will be the third in the last four quarters that the S&P 500 companies ...

Collective dividends per share for Standard & Poor's 500 companies increased roughly 16% year-over-year in 2012. Meanwhile, the number of companies paying a dividend over that period reached a new 13-year high of 405, or roughly 81% of the S&P 500, ...