srjebmSRJEBMSRJEBM2788-9505https://doi.org/10.47310/srjebm.2023.v03i02.017Measuring the risk of the market using (VaR) and its impact on the performance of the growth and Value portfolio an analytical study in the Amman Stock ExchangeDoaaNoman AlHusseiniAzeezMosoKhudeedaThe primary objective of this study was to investigate market vulnerabilities while evaluating the performance of growth and value portfolios within the Amman Stock Exchange during the period from 2020 to 2022. Monthly data from 32 companies were analyzed using the Value at Risk (VaR) model to assess index risks. To differentiate between growth and value stocks, the study relied on the price-earnings ratio index. The value-at-risk index (J.P. Morgan) was employed to quantify market risk using established methodologies. The study found that the profitability multiplier index during the study period did not meet desired benchmarks. Additionally, statistical analysis revealed a noticeable impact of index risk on the performance of both value and growth portfolios. Interestingly, an inverse correlation emerged between the risk index calculated through value at risk and the performance exhibited by the portfolios in the study sample. This study concludes by emphasizing the importance for investors to understand the inherent market risks associated with investment portfolios. Furthermore, it underscores the significance of evaluating market risk through the value at risk methodology due to its superior accuracy compared to traditional measurement indicators.