Quantcast

Portfolio beta

Definition:

Used in the context of general equities. The beta of a portfolio is the weighted sum of the individual asset betas, According to the proportions of the investments in the portfolio. E.g., if 50% of the money is in stock A with a beta of 2.00, and 50% of the money is in stock B with a beta of 1.00,the portfolio beta is 1.50. Portfolio beta describes relative volatilityof an individual securities portfolio, taken as a whole, as measured by the individual stock betas of the securities making it up. A beta of 1.05 relative to the S&P 500 implies that if the S&P's excess return increases by 10% the portfolio is expected to increase by 10.5%.

Investing Essentials


Copyright © 2011 Campbell R. Harvey, Professor of Finance, Fuqua School of Business at Duke University

Term of the Day

Receipts

Funds collected from selling land, capital, or services, as well as collections from the public (budget receipts), such as taxes, fines, duties, and fees.

Subscribe to the Term of the Day via email Get the Term of the Day in your inbox!





Create your free portfolio




Investing Tools

stock screener icon
Stock Screener

Find opportunities in the market using criteria based on 145 data elements.

portfolio tracker icon
Portfolio Tracker

Create a portfolio of selected assets that are updated dynamically intraday.

guru icon
Guru

Evaluate stocks that meet the investment criteria of the greatest investors.