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Beta equation error in solutions/capm.py ? #4

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Beta equation error in solutions/capm.py ?#4
@arikanderu

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@arikanderu
arikanderu
opened on Dec 29, 2019

beta is calculated as:
beta = stock_cov / market_variance
where: stock_cov = market.corr(coca)

But it should be: stock_cov = market.cov(coca)

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