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T. Rowe Price Science & Tech (PRSCX)On Nov 30: 20.81  Down 0.02 (0.10%)  
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Risk  As of 31-Oct-09Get Risk for:
RISK OVERVIEW 
Morningstar Risk Rating:Average
Number of Years Up:4
Number of Years Down:1
Best 1 Yr Total Return (2007):11.88%
Worst 1 Yr Total Return (2008):-43.80%
RISK (MODERN PORTFOLIO THEORY) STATISTICS 
3 Years
StatisticPRSCXCategory
Alpha (against Standard Index)10.487.86
Beta (against Standard Index)1.231.14
Mean Annual Return-0.230.12
R-squared (against Standard Index)7978.24
Standard Deviation26.8125.36
Sharpe Ratio0.04N/A
Treynor Ratio-2.16N/A
5 Years
StatisticPRSCXCategory
Alpha (against Standard Index)3.653.75
Beta (against Standard Index)1.241.19
Mean Annual Return2.350.43
R-squared (against Standard Index)7573.64
Standard Deviation22.6922.22
Sharpe Ratio0.09N/A
Treynor Ratio-0.54N/A
10 Years
StatisticPRSCXCategory
Alpha (against Standard Index)0.422.22
Beta (against Standard Index)1.721.56
Mean Annual Return-6.800.10
R-squared (against Standard Index)6657.55
Standard Deviation34.0533.23
Sharpe Ratio-0.12N/A
Treynor Ratio-5.67N/A

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