A股是我国境内的公司发行，供境内机构、组织或个人（不含台、港、澳投资者）以人民币认购和交易的普通股股票。A股市场于1990年成立。

A shares are common stocks issued by mainland Chinese companies, subscribed and traded in Chinese RMB, listed in mainland Chinese stock exchanges, bought and sold by Chinese nationals. A share market was launched in 1990.