7 reasons the stock market is so volatile

Published On: Mar 05 2013 09:37:41 AM CST   Updated On: Mar 05 2013 09:45:51 AM CST

Plunge! Rebound! Crash! Rally! Plunge again! Why is the U.S. stock market so volatile?

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Kevin Lamarque / Reuters

5. China's Economy -- U.S. stocks rise and fall with the ups and downs in China's economy at the moment.

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