This study aims to examine the effect of Return on Assets (ROA), Return on Equity (ROE), Debt to Equity Ratio (DER), and Price Earning Ratio (PER) on stock beta among banking companies listed on the Indonesia Stock Exchange (IDX) during the 2021–2023 period. The research employs a causal quantitative approach and utilizes population data from IDX-listed banking firms within the designated timeframe. A purposive sampling method was applied, resulting in a final sample of 27 companies, comprising 81 firm-year observations. The empirical results reveal that ROA has a positive and significant effect on stock beta, ROE exhibits a negative and significant effect, DER has a positive and significant effect, while PER shows a negative but insignificant effect. These findings offer valuable insights into the impact of financial performance indicators on systematic risk within Indonesia’s banking sector.
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