This study investigates the outcomes of emerging BRICS(P) groups at the global stock market. The Emergence of this Group helps the investors in the diversification of international portfolio funds. However, economic and financial globalization assimilated the world's leading economies to provide an interdependent investment portfolio structure for investors and savings in the transformation and allocation of funds. The diversification of the international stock market may bounce the investors of BRICS(P) Group to maximize the expected returns along with a certain level of risk placement. This study prefers to use Auto-Regressive Distributed Lag (A.R.D.L.) method to evaluate the outcomes of investment diversification and to investigate the short-term and long-term changing patterns of the sampled stock exchange markets in the BRICS(P) nations. The findings of this study show that a significant investment portfolio diversification may originate benefits if the funds become merged among the B.R.I.C.S. (Brazil, Russia, India, China, and South Africa) nations. Moreover, this study made a separate point of view for the investment funds of India and Pakistan. The study investigates that the funds of these two nations are assimilated, and the appropriate diversification of investment may exist through the assimilation of these two economies. The results would suggest the international and native investors merge their investment proposals among these economies and to construct a well-diversified portfolio because a shared value of risk protects the investors. It gives opportunities to earn desirable returns. The study has implications on all sectors of the economy, including mining as well as natural resource prices.