Journal of Economics and Economic Policy
Vol. 2 No. 4 (2025): Journal of Economics and Economic Policy

RISK ANALYSIS OF SINGLE STOCKS AND PORTFOLIOS IN LQ45 INDEX

Astuti, Tri Heni (Unknown)
Pramuditha Dwi Anggraini (Unknown)



Article Info

Publish Date
29 Jun 2025

Abstract

Objective:  This study aims to measure and compare the Value at Risk (VaR) between single stocks and a portfolio within the LQ45 index using the Variance-Covariance method. Method: Daily closing prices of three companies—PT Bank Rakyat Indonesia (BBRI), PT Bank Central Asia (BBCA), and PT Astra International (ASII)—from January to October 2024 were analyzed. The Kolmogorov-Smirnov test confirmed the normal distribution of returns, validating the use of the Variance-Covariance approach. Risk for individual stocks was calculated using standard deviation, while portfolio risk incorporated covariance between asset returns. Results: The results show VaR values of Rp3,057,807 (BBRI), Rp2,243,478 (BBCA), and Rp2,928,485 (ASII) for single stocks, while the combined portfolio had a lower VaR of Rp1,985,061. Novelty: These findings indicate that diversification effectively reduces investment risk. The study provides practical insights for investors aiming to manage potential losses through portfolio construction.

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Journal Info

Abbrev

IJEC

Publisher

Subject

Economics, Econometrics & Finance Social Sciences

Description

The Journal of Economics and Economic Policy is a monthly publication at the forefront of economic scholarship, offering a diverse and comprehensive exploration of contemporary economic issues. With a commitment to excellence, the journal provides a platform for leading economists, researchers, and ...