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Investing Glossary:
Efficient Market Hypothesis
Copyright 2013,
Campbell R. Harvey. All Rights Reserved.
Do not reproduce without explicit permission.
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| Term: |
| Efficient Market Hypothesis
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| Definition: |
| States that all relevant information is fully and immediately reflected in a security`s Market price, thereby assuming that an Investor will obtain an Equilibrium rate of return. In other words, an investor should not expect to earn an abnormal Return (above The Market return) through either technical Analysis or fundamental analysis. Three forms of Efficient market hypothesis exist: weak form (stock prices reflect all information On past prices), semistrong form (stock prices reflect all publicly available information), and strong form (stock prices reflect all relevant information including insider information).
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