This report is directed towards the study of the South East Asian Stock Markets, for weak form of efficiency, as the number of studies done in this area is limited especially in the use of the developing countries in this region. The study looks at a mixture of effects that affect the behaviour of the stock prices. Issues that are considered in parallel to efficient market theory, is random walk theory, the time changing nature of variance overtime, that is, the volatility effects leading into the sesonality effects. Another import aspect of this study is to look at the above mentioned effect on stock behaviour under different time frames, the pre-crash period and the post-crash .period, to enable a more detail evidence of the occurrence of seasonality and volatility overtime. The study divides the countries in the South East Asian Region into developed and underdeveloped countries, for enabling better understanding of the above mentioned analysis in different markets over different time frames.
"If one were to start out with the assumption that a stock or commodity speculation is "fair game" with equal expectation of gain or loss or, more accurately, with an expectation of zero gain, one would be well on the way to picturing the behaviour of speculative prices as a random walk", Alexander, 1964, p.200.