random walk theory
A market theory which holds that it is impossible to predict what stock prices will do in the future by looking at historical performance because market movements are purely random. Defenders of the random walk theory believe that attempting to outperform the market using technical analysis or fundamental analysis will fail over time and that the only way to profit in the market is to buy and hold stocks that are representative of the broader market. See market timing.
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trading margin excess
fifty fifty
Finance Bill
independent variable