The random walk hypothesis says a stock’s past price movements are of absolutely no help in predicting future movements. In other words, it’s a random pro cess, like tossing a coin. We all know that even if a coin has come up heads ten times in a row, the probability of heads on the next throw is still fifty- fifty.Likewise, the hypothesis says, the fact that a stock’s price has risen for the last ten days tells you nothing about what it will do tomorrow.
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The odds are always fifty-fifty. But most of us anticipate better odds, or better luck, after a bad streak, as if now we are due for good luck.
This ‘Gambler’s Fallacy’ assumes that probability as a whole has memory, and if the coin is flipped ten times and shows ‘head...
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