Investors are hoping for a rally in the markets after recent drops in stocks, oil and gold.

Analysts say markets fell due to worries about the global economy -- including the debt crisis that led to riots in Greece and a possible economic slowdown in China.

Some analysts say markets should rise again once those concerns are cleared up.

"For the moment, despite the growth jitters, it seems to us that both the U.S. and the global recovery will remain intact, and although growth seems to have clearly downshifted a gear or two, we are not looking for a double-dip," said Edward Meir of MF Global in New York, adding that he would be "very surprised to see (oil) prices stay below $70 for a considerable period."

However, others warn about long-term problems, like the possibility of deflation and the growing debt of the U.S. government.