After the financial liberalisation, integration of the coountry markets bring lots of positive and negative results. Effective usage of the resources, the differention of the financial derivatives according to needs.increase in the investment opprtunuties, decrease in the investment costs, strenghtening in the legal side of te financing activity could be said about the positive results. On the other hand, because of the contagion, the problem of a country about economic and financial issue, spread across countries, and this situation bring some problems like moral hazard because of the low inspection of markets. In this thesis, the effect on the 2008 Global Financial Crises on selected countrys’ stock excahnges were tried to be estimated, t...