QLD: Risk for PROSHARES ULTRA QQQ - Yahoo! Finance

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Risk As of 31-Oct-09	Get Risk for:

RISK (MODERN PORTFOLIO THEORY) STATISTICS

3 Years
Statistic	QLD	Category
Alpha (against Standard Index)	11.25	0.37
Beta (against Standard Index)	2.21	1.13
Mean Annual Return	-0.28	-0.50
R-squared (against Standard Index)	83.64	95.56
Standard Deviation	47.23	N/A
Sharpe Ratio	-0.12	-0.37

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