Empirical Evidences on Weak Form Stock Market Efficiency: The Indian Expricnce.

Weak form efficiency hypothesis (EMH) stipulates that asset prices fully reflect information contained in past stock prices. The present study documents extensive evidence on price behavior in the Indian stock markets. One of the striking features of the results is that runs analysis too exuberate weak form efficiency further and the instances of return drift noted earlier have disappeared. On the whole, the results signify that trading strategies based on historic prices cannot be relied for abnormal gains consistently, except when these coincide with underlying drifts in the stock price movements. [ABSTRACT FROM AUTHOR]