Generate profits and increase the value of the company is the purpose of financial management, financial management achievements reflected in its financial performance. Acquisitions can be used as a way to improve the financial performance of the company. The purpose of this study was to explain the differences in financial performance before the multinational company after the acquisition. The study was conducted in Multinational Companies acquirer on the Stock Exchange in 2011-2013. The research sample numbering seven companies, sampling using methods nonprobability sampling with purposive sampling approach. The analysis technique used is the Pair-Sample t-Test. Based on data analysis, it was found that after the acquisition of a multinational company's financial performance is not significantly different from prior acquisitions. This proves that srategi acquisition is not an appropriate strategy to improve the financial performance of multinational corporations. To be successful acquisition, the acquirer should perform various preparations such as, seeing the condition of the target company in terms of management and financial, as well as see the national and International economic conditions.