This study aims to analyze the influence of the Quick Ratio (QR), Debt to Equity Ratio (DER), and Return on Equity (ROE) on firm value—proxied by the Price-Earnings Ratio (PER)—in iron and steel sub-sector companies listed on the Indonesia Stock Exchange during the 2020–2024 period. A quantitative method with an associative approach was employed, utilizing secondary data from the financial statements of iron and steel sub-sector companies for the 2020–2024 period. The sample was selected using purposive sampling, resulting in 9 companies and a total of 45 observations, which were analyzed via panel data regression using EViews software. The results indicate that QR, DER, and ROE—both simultaneously and partially—have a significant effect on firm value. The novelty of this study lies in its use of a combination of liquidity, capital structure, and profitability variables within the iron and steel sub-sector, covering the most recent period.
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