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2. Beta (finance) - Wikipedia

   en.wikipedia.org/wiki/Beta_(finance)

   In finance, the beta (β or market beta or beta coefficient) is a statistic that measures the expected increase or decrease of an individual stock price in proportion to movements of the stock market as a whole. Beta can be used to indicate the contribution of an individual asset to the market risk of a portfolio when it is

3. Portfolio Beta vs. Stock Beta: What's the Difference?

   www.aol.com/finance/calculate-beta-portfolio...

   Continue reading → The post How to Calculate the Beta of a Portfolio appeared first on SmartAsset Blog. Investors, whether beginner or seasoned professionals, all have a threshold for risk. Some ...

4. Modern portfolio theory - Wikipedia

   en.wikipedia.org/wiki/Modern_portfolio_theory

   Modern portfolio theory (MPT), or mean-variance analysis, is a mathematical framework for assembling a portfolio of assets such that the expected return is maximized for a given level of risk. It is a formalization and extension of diversification in investing, the idea that owning different kinds of financial assets is less risky than owning ...

5. Single-index model - Wikipedia

   en.wikipedia.org/wiki/Single-index_model

   With this equation, only the betas of the individual securities and the market variance need to be estimated to calculate covariance. Hence, the index model greatly reduces the number of calculations that would otherwise have to be made to model a large portfolio of thousands of securities.

6. What Beta Means: Understanding a Stock’s Risk - AOL

   www.aol.com/finance/beta-means-understanding...

   The type of beta you want for your portfolio depends on the type of investor you are. If you’re building a high-dividend, low-volatility portfolio that’s of a more conservative nature, a low ...

7. Greeks (finance) - Wikipedia

   en.wikipedia.org/wiki/Greeks_(finance)

   The beta (β) of a stock or portfolio is a number describing the volatility of an asset in relation to the volatility of the benchmark that said asset is being compared to. This benchmark is generally the overall financial market and is often estimated via the use of representative indices , such as the S&P 500 .