Strong Form Efficiency
Definition of 'Strong Form Efficiency'The strongest version of market efficiency. It states all information in a market, whether public or private, is accounted for in a stock price. Not even insider information could give an investor the advantage. |
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Investopedia explains 'Strong Form Efficiency'This degree of market efficiency implies that profits exceeding normal returns cannot be made, regardless of the amount of research or information investors have access to. |
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