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Random walk hypothesis
Financial theory
The random walk hypothesis is a financial theory which states that the prices of financial assets, particularly those in the stock market, follow a random walk. According to this hypothesis, price variations occur in an essentially random manner, which implies that they cannot be systematically predicted or consistently exploited to achieve returns above those of the overall market.
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The random walk hypothesis is a financial theory which states that the prices of financial assets, particularly those in the stock market, follow a random walk. According to this hypothesis, price variations occur in an essentially random manner, which implies that they cannot be systematically predicted or consistently exploited to achieve returns above those of the overall market.
Texte : Wikipédia en anglais, CC BY-SA 4.0. ·
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