Category: Risk Management
Portfolio Allocation Strategies
Portfolio allocation determines how to divide your money among different investments. It's the most important decision affecting your long-term returns.
[DEFINITION] Asset Allocation: The process of dividing investments among different asset categories (stocks, bonds, cash) based on goals, risk tolerance, and time horizon.
### Why Allocation Matters
[KEY] Studies show asset allocation explains over 90% of portfolio return variation over time—more than individual stock selection or market timing.
**The decision order:**
1. How much in stocks vs. bonds vs. cash? (Most important)
2. Within stocks, which sectors/styles?
3. Which specific securities?
### Classic Allocation Rules
**Age-Based Rule:**
Bond allocation = Your age
- Age 30: 30% bonds, 70% stocks
- Age 60: 60% bonds, 40% stocks
**Modern Adjustment:**
Bond allocation = Your age - 20 (for longer lifespans)
- Age 30: 10% bonds, 90% stocks
- Age 60: 40% bonds, 60% stocks
[TIP] These are starting points, not rules. Adjust based on your specific risk tolerance, income stability, and goals.
### Common Allocation Models
**Aggressive (100% stocks):**
- Long time horizon (20+ years)
- High risk tolerance
- Stable income
- Maximum growth potential
**Growth (80/20 stocks/bonds):**
- Long time horizon (15+ years)
- Moderate-high risk tolerance
- Focus on growth with slight buffer
**Balanced (60/40 stocks/bonds):**
- Medium time horizon (10-20 years)
- Moderate risk tolerance
- Classic institutional allocation
**Conservative (40/60 stocks/bonds):**
- Shorter horizon (5-10 years)
- Low risk tolerance
- Capital preservation focus
[EXAMPLE] A 60/40 portfolio:
- 60% S&P 500 index (stocks)
- 40% Total Bond Market index (bonds)
Historically returned ~7-8% with lower volatility than pure stocks.
### Within-Asset Allocation
**Stock allocation by style:**
- 60% Large-cap
- 25% Mid-cap
- 15% Small-cap
**Stock allocation by region:**
- 70% US
- 20% Developed International
- 10% Emerging Markets
**Bond allocation by type:**
- 70% Government/Investment Grade
- 20% Corporate
- 10% International
### Target-Date Funds
**Automatic allocation based on retirement year:**
- Fund gradually shifts from stocks to bonds
- "Glide path" becomes more conservative
- One-fund solution for many investors
[EXAMPLE] Target 2050 fund today: 90% stocks, 10% bonds
Target 2050 fund in 2045: 60% stocks, 40% bonds
[WARNING] Target-date funds vary significantly by provider. Some are more aggressive than others. Read the prospectus.
### Rebalancing Your Allocation
**When to rebalance:**
- On a schedule (quarterly, annually)
- When allocation drifts 5%+ from target
- After major life changes
**How to rebalance:**
- Sell winners, buy losers to restore target
- Direct new contributions to underweight assets
- In retirement accounts (tax-free) is easiest
[EXERCISE] You're 35 with a moderate risk tolerance. Design a simple portfolio allocation with percentages for: US stocks, International stocks, and Bonds. Explain your reasoning. |ANSWER| Example: 55% US stocks, 25% International stocks, 20% Bonds. Reasoning: At 35, time horizon is 30+ years, justifying 80% stocks. International provides diversification. 20% bonds adds stability for rebalancing during crashes. This is growth-oriented but not extreme.
[SCENARIO] You're 55, planning to retire at 65. Your allocation is 80% stocks, 20% bonds—appropriate when you were 35 but never changed. What should you do?
Gradually shift toward a more conservative allocation (perhaps 60/40 or 50/50). This isn't market timing—it's matching your allocation to your life stage. With 10 years until retirement, you have less time to recover from a major crash. However, don't panic-sell to get there. Create a plan to shift over the next few years, perhaps moving 5-10% per year toward bonds.
Knowledge Check Quiz
Question: According to research, what explains over 90% of portfolio return variation?
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