The increased global linkages give an investor opportunity to invest in equities across the global markets. This linkage can be the reason for spill over of the volatility from one market to the other. This paper makes an attempt to understand the effect of global linkages on the volatility of the stock market. For the purpose of study, stock index data of selected developed and emerging markets were collected and tested to see if there is variation across time, and if yes, uniformity of variation was also tested. It was found from the analysis that the variation across the countries was found to be uniform and most of the pairs of countries had a positive integration between them. It was found from examination that there is no significant difference in the extent of volatility across the countries. 

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