In the dynamic world of investing, a portfolio analysis is a critical tool for investors to evaluate the performance, risk, and diversification of their investment portfolio. This process involves a systematic examination of the securities held in a portfolio, providing valuable insights to inform future investment decisions. Let's delve into an example of a portfolio analysis, highlighting key steps and metrics using a hypothetical portfolio.
Understanding the Hypothetical Portfolio
For this example, let's consider a diversified portfolio consisting of the following securities:
- 50% - Vanguard Total Market ETF (VTI)
- 25% - iShares Core U.S. Aggregate Bond ETF (AGG)
- 15% - Invesco QQQ (QQQ)
- 10% - Vanguard FTSE Emerging Markets ETF (VWO)
Calculating Portfolio Performance
To analyze the portfolio's performance, we'll compare its total return with a relevant benchmark, such as the S&P 500 Index for the equity portion and the Bloomberg Barclays U.S. Aggregate Bond Index for the bond portion.
| Security | Weight (%) | Annual Return (%) | Cumulative Return (%) |
|---|---|---|---|
| VTI | 50 | 12.5 | 62.5 |
| AGG | 25 | 3.5 | 17.5 |
| QQQ | 15 | 18.7 | 83.5 |
| VWO | 10 | 10.2 | 51.0 |
| Portfolio | 100 | 10.6 | 55.1 |
The portfolio's weighted average annual return of 10.6% outperforms both the S&P 500 Index (10.2%) and the Bloomberg Barclays U.S. Aggregate Bond Index (3.2%) over the same period.
Assessing Portfolio Risk
Next, we'll examine the portfolio's risk using the standard deviation of returns. A higher standard deviation indicates greater volatility and risk.
The portfolio's standard deviation of returns is 8.5%, compared to 15.2% for the S&P 500 Index and 3.5% for the Bloomberg Barclays U.S. Aggregate Bond Index. This suggests that the portfolio is less volatile than the equity benchmark but more volatile than the bond benchmark.
Evaluating Portfolio Diversification
Diversification is crucial for managing risk. Let's assess the portfolio's diversification by examining the correlation between its components and the Herfindahl-Hirschman Index (HHI).
The portfolio has a low HHI of 0.16, indicating a high degree of diversification. Additionally, the low correlations between the portfolio's components (ranging from -0.05 to 0.55) further demonstrate its diversification benefits.
Identifying Opportunities for Rebalancing
Finally, let's consider rebalancing the portfolio to maintain its intended asset allocation. Over time, the performance of individual securities can cause the portfolio to deviate from its target weights. In this case, QQQ's strong performance has increased its weight to 18.7%, while VTI's weight has decreased to 41.3%.
To rebalance the portfolio, we could sell a portion of QQQ and use the proceeds to purchase more VTI, AGG, and VWO, bringing the weights back in line with the target allocation. This process helps manage risk and maintain the portfolio's intended risk-return profile.
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