New answers tagged beta
Intuitively put you can say that volatility is the within variation and beta is the between variation. Within means the variation that A has within its own time-series, whereas between means between A and the index.
Yes, the downside alpha is -0.0003. You can confirm that result if you include (1-D) explicitly as one more covariate, but then you'll have to request a model with no intercept.
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