Information technology (IT) has a significance role in ease trading activities and investment on the stock exchange. The use of IT not only ease transactions and create new investment instruments such as cryptocurrencies and NFTs, but also attract millennial generation to participate. According to OJK 60.29% of new investor are under 30 years old, and the investor of cryptocurrency increased by 15.1 million. Social media contributes to this increase by giving rise to the fear of missing out (FOMO) phenomenon among millennials. The increase in investment variety and activity also increases investment risk. This study aims to test whether FOMO and analysis (technical and fundamental) influenced investment decision and test the moderation role of financial behavior on that relationship. This quantitative research use google form questionnaire to collect the data. SEM and regression analysis used to test the research model and hypothesis. The results of this study support the influenced of technical and fundamental analysis on investment decision, and financial behavior moderates the effect of FOMO on investment decisions. However, this research fails to support the effect of FOMO on investment decisions and the moderating role of financial behavior on the relationship of technical and fundamental analysis toward investment decisions. The power of this research model to estimate the causal relationship quite good (R² = 0.68).