ThirdAge Investment Glossary |
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Beta
A statistical measure of a security's volatility compared to the volatility of the overall market. If a stock has a beta of 1.0, its price would be expected to rise and fall with the same volatility as the market as a whole. If a stock has a beta of 1.3, its price would be expected to rise by 1.3% when the market rises by 1.0%, and to fall by 1.3% when the market falls by 1.0%. See also Sharpe ratio.
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