按投资主体来分，我国上市公司的股份可以分为国有股、法人股和社会公众股。 国有股指有权代表国家投资的部门或机构以国有资产向公司投资形成的股份，包括以公司现有国有资产折算成的股份。由于我国大部分股份公司制企业都是由原国有大中型企业改制而来的；因此，国有股在公司 Divided by the main investors, the shares of China’s listed companies can be divided into state-owned shares, corporate shares and public shares. State-owned stock refers to the shares that the department or agency entitled to invest on behalf of the state invests in the state with state-owned assets, including the shares converted into the existing state-owned assets of the company. Since most of the joint-stock companies in our country are transformed from the original large and medium-sized state-owned enterprises,