This thesis explores the effects of internal financial factors on stock return of Vietnamese Banks and Insurance companies during 2008-2014 periods. Within the short-run and long-run framework, it is found that the relationship between the long term financial investing and stock return is evident in this group. This phenomenon is different and very special comparing to the case of other countries. The possible reasons explaining for this unique characteristic are that the Vietnamese stock market is inefficient and the financial information of Banks and Insurance companies are chaotic and impossible to provide a direction for their stock prices.