Ascendia: Journal of Economic and Business Advancement
Vol. 1 No. 3 (2026): March: Ascendia: Journal of Economic and Business Advancement

Analisis Investasi Saham Sektor Energi Menggunakan Metode Value at Risk (VAR) dan Conditional Value at Risk (CVAR) dengan Pendekatan Single Index Model: Studi Kasus Indeks LQ45 Tahun 2025

Ayu Nor Aisah (Unknown)
Eka Krisna Santoso (Unknown)
Nurul Maqfirah Rauf (Unknown)



Article Info

Publish Date
13 Jan 2026

Abstract

The energy sector is characterized by high volatility, making comprehensive risk analysis essential for investment decision-making. This study examines the risk and return characteristics of energy sector stocks included in the LQ45 index in 2025 by integrating the Single Index Model with Value at Risk (VaR) and Conditional Value at Risk (CVaR). Daily closing price data from February 2022 to July 2025 are employed to estimate stock returns, market sensitivity, and portfolio risk. The Single Index Model identifies three optimal stocks AKRA, MEDC, and PGAS based on their Excess Return to Beta and positive Zᵢ values, resulting in portfolio weights of 39.6%, 51.8%, and 8.5%, respectively. Monte Carlo simulation is applied to estimate portfolio risk at a 95% confidence level. The results indicate that the portfolio’s VaR reflects a manageable level of potential daily loss, while the CVaR reveals the average loss under extreme market conditions beyond the VaR threshold. Overall, the findings suggest that the optimal energy sector portfolio offers a balanced risk–return profile with controlled exposure to market and tail risks, providing valuable insights for risk-aware investors.                             

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Journal Info

Abbrev

ascendia

Publisher

Subject

Economics, Econometrics & Finance

Description

Ascendia: Journal of Economic and Business Advancement is a peer-reviewed academic journal dedicated to the dissemination of high-quality research in economics, management, accounting, and business. The journal provides an open platform for researchers, scholars, practitioners, and academics to ...