AMF a prominent MRO company in Asia-Pacific region, especially Indonesia, has experienced decline in stock performance since its IPO in 2017. This study aims to discover factors contributing in company’s declining value and provide feasible recommendation to improve stock performance and financial health. A ten-year financial report assessment from 2014 to 2023 was conducted to gain a broader overview of company’s financial condition. This study examines financial ratios and compared to industry average through Multiple Market Approach. External risk affecting the underperformance of stock are also evaluated through PESTEL and Porter’s Five Forces. Result of the study indicate underperformance of AMF is due to decreasing profitability margin, inefficient use of assets, increasing operational expenses, and unfavourable external economic condition. The evaluation also reveal that the stock undervalued by market, where this statement is reinforced by intrinsic value of company is 3.88x higher than current market price, as well as supported by comparisons with similar industries where the financial ratios such as P/E ratio, M/B ratio, and EV/EBITDA are below industry average. The analysis proposes stock performance enhancement and financial stability by optimizing operational processes, capitalizing on technological advancement, and establishing strategic partnership to diversify revenue streams and enhance market presence.