The research aimed at assessing the extent of the performance of the Nigerian stock exchange in the international market, to determine the extent to which the Nigerian stock exchange has performed in the international market, to examine the factors that smoothen or hinder the effective performance of the Nigerian stock exchange in the international market. The study made use of both primary and secondary sources of data to obtain information, for the primary sources, questionnaire, observation and interview method were used, while for the secondary data, the use of text books, magazines, news papers and journals were adopted. It was found out that the Nigerian Stock Exchange influences the performance of the international market, the performance of Nigerian Stock Exchange (NSE) in international market is very high, the factors preventing the performance of the Nigerian Stock Exchange (NSE) in International Market is small size of the market, the reform made by the government has a positive impact on the performance of the Nigerian Stock Exchange in the International Market. It was recommended that the size of the Nigerian stock market should be expanded and rigorously enhanced to be able to compete with the other sock markets at the international level, economic reforms should be carried out so as to standardized the domestic stock market to be able to face the emerging challenges in international market, Corruption and favouratism should be checkmated and minimized.