The research purpose to examine the effect of financial behavior on perceptions of stock investment
performance in the capital market with investment decisions as a mediator and financial literacy as a
moderator. The form of this research is a survey. Population in this study all capital market investors in the
Indonesia Stock Exchange (IDX) Pontianak City (11,352 investors). The sample selection using purposive
sampling and snowball sampling with the criteria of investors who have invested ± 1 in order to obtain a
sample of 100 respondents. The data collection techniques used were questionnaires, documentary studies
and literature studies. As for the analysis method used is the Structural Equation Modeling with WarpPLS.
6.0. The results showed that overconfidence had a positive effect on investment decisions (p-value 0.019
0.05), financial literacy did not
moderate the effect of overconfidence (p-value 0.132> 0 , 05) but moderates the negative effect of herding
(p-value