For both individual stocks, S&P 500 index, and the portfolio, steps needed for returns, standard deviations, slopes (Beta), 95% confidence interval, and CAPM calculation. Make sure in the

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Excel file showing calculation
steps

For both individual stocks, S&P 500 index, and the portfolio,
steps needed for returns, standard deviations, slopes (Beta), 95% confidence
interval, and CAPM calculation.
Make sure in the Excel file, students are using monthly data (NOT daily), and
the dates for the two stocks and the S&P 500 are matched each other.

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Reasons for picking up the two
stocks

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Two stocks and index average return
calculation (monthly and annually)

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Two stocks and index standard
deviation calculation (monthly and annually)

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Beta and 95% confidence interval
calculation

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Total risk and systematic risk
comparison

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Repeat above for the portfolio

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CAPM calculation

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Abnormal return calculation and
investment decision