Stock's historical ... we're going to work through an example, and because no one in this day and age would calculate a variance by hand, we'll use Microsoft Excel. The following screenshot ...

He contributes to Excel ... how the variance of an asset—anything from an individual security to an entire portfolio—relates to the covariance of that asset and the stock market (or whatever ...

The beta of a stock ... market by subtracting the open from the close and then dividing by the open. To calculate the beta of Apple Inc. (NASDAQ: AAPL) as a specific example using the covariance ...

Financial feeds like Yahoo Finance and Google Finance commonly list beta amid other financial data, such as stock price or market value ... stock (column D in Excel). The example considers ...

Engel, C., J. Frankel, Kenneth A. Froot, and T. Rodrigues. "Tests of Conditional Mean-Variance Efficiency of the U.S. Stock Market." Journal of Empirical Finance 2 (March 1995). (Revised from NBER ...

A stock's historical ... we're going to work through an example, and because no one in this day and age would calculate a variance by hand, we'll use Microsoft Excel. The following screenshot ...