Southeast Asian Business Review
Vol. 4 No. 1 (2026): Southeast Asian Business Review - Vol. 4 No. 1 (2026)

Strategic Portfolio Optimization and Tail-Risk Management: A Comprehensive Single-Index Model Approach Leveraging Risk-Adjusted Metrics in the NIFTY 50

Chakraborty, Barendra Nath (Unknown)
Kundu, Amit (Unknown)



Article Info

Publish Date
12 Mar 2026

Abstract

Abstract This study explores the meticulous construction of an optimal portfolio utilizing the Sharpe’s Single-Index. Model (SSIM) for 50 stocks from the NSE NIFTY50 index, spanning data from April 30, 2019, to May 1, 2024. We analyzed key factors such as Beta values, stock variances, and excess returns. This analysis revealed that higher Beta stocks are associated with greater systematic risk, while stock variance primarily influences unsystematic risk. The optimal portfolio, comprising stocks like Apollo Hospitals Enterprise Ltd., Adani Enterprises Ltd., and Asian Paints Ltd., balances risk and return effectively, with Nestle India Ltd., holding the highest weightage. The portfolio Beta of 0.73 suggests lower volatility compared to the market, making it attractive to risk-averse investors. Advanced risk-adjusted performance metrics, including Modified Value at Risk (MVaR), Conditional Expected Drawdown (CED), and the Rachev Ratio (R-Ratio), were utilized to assess tail risk, drawdowns, and the trade-off between extreme gains and losses. This comprehensive analysis provides valuable insights into portfolio optimization, offering a strategic roadmap for investors aiming to maximize returns while managing risk in a volatile market environment.

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Journal Info

Abbrev

SABR

Publisher

Subject

Decision Sciences, Operations Research & Management Economics, Econometrics & Finance

Description

The SABR is committed to publishing the high quality articles from business and management perspectives in regards to within and between the Southeast Asian region. The covered domains but not limited to, such as: Marketing management, Finance, and management accounting, Strategic management, ...