Calculate Stock Beta in Excel: A Step-by-Step Guide

Learn how to calculate stock beta in Excel using historical price data and formulas—enhance your investment analysis with ...
Investopedia

Variance vs. Covariance: Key Differences in Statistics and Investing

Mary Hall is a editor for Investopedia's Advisor Insights, in addition to being the editor of several books and doctoral papers. Mary received her bachelor's in English from Kent State University with ...
Risk

Variance-covariance-based risk allocation in credit portfolios

Merton-type models, also referred to as structural models, such as PortfolioManager (Kealhofer, 2001) and CreditMetrics (Gupton, Finger & Bhatia, 1997), have become the standard choice for financial ...
JSTOR Daily

Asymptotic Information and Variance-Covariance Matrices for the Linear Structural Model

Journal of the Royal Statistical Society. Series D (The Statistician), Vol. 48, No. 4 (1999), pp. 477-493 (17 pages) Many papers have addressed the problem of fitting a straight line to a set of ...
JSTOR Daily

A Geometrical Interpretation of an Alternative Formula for the Sample Covariance

In a previous issue of The American Statistician, Heffernan reexpressed the classical formula for the sample variance as a sum of squared pairwise differences. This result extends to the sample ...
Risk

The mutual-information-based variance–covariance approach: an application to operational risk aggregation in Chinese banking

Most advanced measurement approaches cannot simultaneously capture the overall dependence between operational risk components and be easy to use and understand. This paper proposes a mutual ...