Asset Allocation Basics: How to Split Your Money Across Stocks, Bonds, and Gold
2026-05-30 · ~1,900 words · 9 min read
1. In 2022, All-Stock Investors Lost 19% — 60/40 Lost Only 11%
2. What Is Asset Allocation?
3. Interactive Allocation Simulator
4. Risk Tolerance: Age, Income, and Time Horizon
5. Historical Returns and Correlations
6. When All-In Stocks Goes Wrong
7. Classic Portfolio Templates
8. FAQ
9. Summary
10. Test Your Understanding
1. In 2022, All-Stock Investors Lost 19% — 60/40 Lost Only 11%
2022 was brutal. The S&P 500 dropped 19.4%. Long-term US bonds fell 20%+. But a 60% stock / 40% bond portfolio? Down about 11%. Still painful — but nearly half the damage.
Asset allocation isn't about winning every year. It's about surviving the worst ones. This guide shows you how to find your number.
2. What Is Asset Allocation?
Asset allocation = dividing your money across different asset classes. The core idea: different assets don't move together — when one falls, another may hold steady or rise.
- Stocks: growth engine, highest long-term return (~10%), but can drop 40%+ in a single year
- Bonds: stabilizer + income, ~5% return, lower volatility
- Cash: zero volatility, negative real return after inflation — for emergencies and short-term needs
- Gold: inflation hedge + crisis insurance, near-zero correlation with stocks, but generates no cash flow
Nobel laureate Harry Markowitz called diversification "the only free lunch in investing" — lower risk without lower expected returns.
3. Interactive Allocation Simulator
Adjust your stock and bond percentages. See how expected return and worst-case drawdown change:
Based on historical estimates (stocks 10%/18% vol, bonds 5%/6%, cash 2%/0%). 60/40: 7.5% return, -22% max drawdown. 70/30: 8%, -28%. 50/50: 7%, -16%.
4. Risk Tolerance: Age, Income, and Time Horizon
There's no "right" allocation — only what fits you:
- Time horizon: >10 years until you need the money → higher stock %. <2 years → mostly cash/short bonds
- Income stability: stable job (government, tenured) → can handle more stocks. Freelancer/gig worker → need more cushion
- Emotional tolerance: when your portfolio drops 20%, do you buy more or panic-sell? Be honest.
A modern take on the classic rule: Stock % = 110 − your age. At 25: 85% stocks. At 60: 50% stocks. Start here and adjust for your situation.
5. Historical Returns and Correlations
| Asset Pair | Long-Term Correlation | Notes |
|---|---|---|
| US Stocks vs US Bonds | ~0.0 to -0.3 | Often negative since 2000 (stocks down, bonds up) |
| US Stocks vs Gold | ~0.0 | Nearly independent — gold often rises during crises |
| US vs International Stocks | ~0.7 | Highly correlated — globalization limits diversification benefit |
| US Stocks vs Cash | 0.0 | Completely independent — but lowest return |
6. When All-In Stocks Goes Wrong
Dave invested $1M all in stocks in 2007. By March 2009, his account was $480K — down 52%. He couldn't take it. He sold everything.
With a 60/40 portfolio, his drawdown would've been ~25-30% — account at ~$720K. Still awful, but he might have stayed invested. And 2009? The S&P 500 rebounded 26.5%. Dave's 60/40 would've recovered to ~$950K by year-end. But he was already out — and missed the entire recovery.
Asset allocation's first job isn't maximizing returns. It's keeping you in the game when everything feels like it's falling apart.
7. Classic Portfolio Templates
| Name | Stocks | Bonds | Cash | For Whom |
|---|---|---|---|---|
| Aggressive Growth | 90% | 10% | 0% | 20-30, horizon >20yr |
| Growth | 70% | 25% | 5% | 30-45, moderate-high risk |
| Balanced (60/40) | 60% | 30% | 10% | 45-55, moderate risk |
| Conservative | 40% | 40% | 20% | 55-65, near retirement |
| Income | 25% | 50% | 25% | Retired, need cash flow |
8. FAQ
What is asset allocation?
Splitting money across stocks, bonds, cash, and other assets. Diversification reduces volatility without reducing expected returns — the only free lunch in investing.
What's the 60/40 portfolio?
60% stocks + 40% bonds. ~7-8% historical return, ~-20% max drawdown. Suitable for moderate risk, 10+ year horizon.
Does "100 minus age" still work?
The core idea holds: more stocks when young, more bonds when older. Modern version: 110 or 120 minus age (longer lifespans, lower bond yields).
How often should I rebalance?
Once a year. Sell winners, buy losers back to target weights. It's automated "buy low, sell high" — discipline over emotion.
9. Summary
- Diversification reduces pain without reducing gain. Different assets don't move together. Combined, your worst year is significantly less bad.
- Stock % = 110 − age is a solid starting point. Adjust for income stability and emotional tolerance.
- Rebalance yearly. It forces you to buy low and sell high — the one discipline that consistently adds value.
Sources & Further Reading:
- Historical Returns: Damodaran, NYU Stern
- Modern Portfolio Theory: Markowitz — Nobel Prize 1990
- Portfolio Models: Vanguard
- Rebalancing: Bogleheads Wiki