anemonDevelopments in the field of informationtechnologies and the removal of obstacles to capital movements have acceleratedthe financial integration process. The increase in financial integration hasgiven importance to studies investigating the relationship between financialmarkets in terms of international portfolio diversification. For this purpose, the long-term relationship between BIST and Dow Jones, DAX and CAC industry, financial and technology sector indexes is tested by Engle-Granger (1987)cointegration method, taking into account daily dollar based prices for theperiod 20.05.2010-03.04.2018. The findings show that the industrial index ofthe 3 countries and the BIST Industry Index, the financial sector index of the3 countries and...