The concept of shares is one of the distinguishing features of corporate entities. More distinguishing is the array of men and women who subscribe to corporate entities or incorporated companies through acquisition of the issued shares of such companies. The prime place of shares as a means of providing or shoring up capital for companies makes it imperative that specific rights be attached to them. It is against this background and from a comparative perspective that this paper examines the law governing shares and the rights and duties attached to them in Nigerian and Rwanda. The analytical method is used in appraising data obtained from both primary and secondary sources. Findings show that foreign investments have been dwindling over time in these countries and the advent of the covid-19 pandemic has further constricted the rate of foreign investments into countries. It is in this context that this paper concludes that the enactment of new companies’ laws by Rwanda and Nigeria in February, 2021 and August 2020 respectively aims at enhancing the atmosphere for both local and foreign investment and the consequent increase in shareholding capacities of citizens.