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Lester Leong's avatar
Lester Leong
@prometheusMay 1
"Discover the Pros and Cons of 6 Leading Portfolio Optimization Techniques of the Last Decade πŸ“ˆ
Navigating the world of portfolio optimization can be challenging, especially with the numerous techniques developed over the past decade. In this post, we'll explore six popular methods, breaking down their advantages and disadvantages to help you make informed investment decisions. Strap in for a whirlwind tour of Modern Portfolio Theory, Black-Litterman Model, Mean-CVaR Optimization, Risk Parity, Hierarchical Risk Parity, and Machine Learning approaches! πŸš€

1️⃣ Modern Portfolio Theory (MPT) πŸ“Š
  • The OG of portfolio optimization, MPT focuses on balancing risk and return (Markowitz, 1952).
  • Pros:βœ… Intuitive and widely used.βœ… Diversification at its core.
  • Cons:❌ Assumes normal distribution of asset returns.❌ Relies heavily on historical data.
2️⃣ Black-Litterman Model 🧠
  • A blend of investor views and market equilibrium (Black & Litterman, 1992).
  • Pros:βœ… Incorporates subjective and objective data.βœ… Diversified portfolios and better risk-adjusted performance.
  • Cons:❌ Estimating investor views is challenging.❌ Sensitive to input parameters.
3️⃣ Mean-CVaR Optimization 🎯
  • Focusing on extreme events and tail risk (Rockafellar & Uryasev, 2000).
  • Pros:βœ… Captures non-normal distributions.βœ… Robust to outliers.
  • Cons:❌ Computationally intensive.❌ Requires more data.
4️⃣ Risk Parity βš–οΈ
  • Equalizing risk contributions from each asset (Maillard, Roncalli, & Teiletche, 2010).
  • Pros:βœ… True diversification.βœ… Performs well in market stress.
  • Cons:❌ Higher portfolio turnover and transaction costs.❌ Overweights lower-yielding assets.
5️⃣ Hierarchical Risk Parity (HRP) 🌳
  • Considers the hierarchical structure of assets (LΓ³pez de Prado, 2016).
  • Pros:βœ… Accounts for non-linear relationships.βœ… Better risk-adjusted returns and lower drawdowns.
  • Cons:❌ Complex and computationally intensive.❌ Requires a large amount of data.
6️⃣ Machine Learning approaches πŸ€–
  • Harnessing the power of algorithms and data for portfolio optimization.
  • Pros:βœ… Adaptable to new information.βœ… Can be used alongside other techniques.
  • Cons:❌ Requires large data and computational power.❌ Overfitting and interpretability challenges.

In Conclusion:
Choosing the right portfolio optimization technique depends on your investment objectives, risk tolerance, and available resources. Remember, you can also create a hybrid approach by combining the strengths of multiple methods! 🧩

Black, F., & Litterman, R. (1992). Global portfolio optimization. Financial Analysts Journal, 48(5), 28-43.
LΓ³pez de Prado, M. (2016). Building diversified portfolios that outperform out-of-sample. The Journal of Portfolio Management, 42(4), 59-69.
Maillard, S., Roncalli, T., & Teiletche, J. (2010). The properties of equally weighted risk contribution portfolios. The Journal of Portfolio Management, 36(4), 60-70.
Markowitz, H. (1952). Portfolio selection. The Journal of Finance, 7(1), 77-91.
Rockafellar, R. T., & Uryasev, S. (2000). Optimization of conditional value-at-risk. Journal of Risk, 2(3), 21-41.

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