This study examines the determinants of violation cases to the Securities and Exchange Act in Taiwan. We focus on the equities and stock affairs penalty cases issued by Financial Supervision Committee R.O.C from 2013 to 2019, and use the regression model and bootstrapping method developed by Efron (1979) to control for the possible biases caused by small-sized sample. The results show that sales growth and operating losses are positively associated with the violation probability. Corporate governance is beneficial to curb firm violation. Furthermore, we find that firms with higher firm size, higher financial losses, and higher leverage get higher penalty.