This paper investigates the determinants on decision to conduct seasoned equity offerings (SEOs) of listed companies on the Ho Chi Minh Stock Exchange in Vietnam. Seasoned equity offerings (SEOs) are defned as the issue of more stocks by a frm to raise more capital after a primary issue. Using panel data collected from audited fnancial statements of 99 listed companies on the Ho Chi Minh Stock Exchange during 2014-2018, the study employs a logit regression model by fxed effects method to examine factors that affect the decision to implement seasoned equity offerings of those companies. The fndings of this study show that proft, revenue growth and company’s size have a positively signifcant impact on the decision, while dividend pay-out ratio negatively signifcantly influences the equity issuing decision. Furthermore, these results are robust after controlling for the forms of equity offerings, i.e. bonus stocks, stock dividends and rights to buy shares. These fndings are consistent with economic theories such as agency theory, pecking order theory, and growth opportunity theory, and also could be explained by the real situations of the Vietnamese stock exchange. This study has important implications for corporate managers, policy makers and investors.