Matching asset classes to when you need the money
| Asset class | Best for money you need... | How much it can swing in a bad year |
|---|---|---|
| Stocks (e.g., VTI) | 10+ years from now | Down 20-30% (sometimes more) |
| Bonds (e.g., BND) | 3-10 years from now | Usually within about 5-10% |
| Cash / T-bills (e.g., BIL) | Within 1-2 years | Barely moves |
Spreading investments across world regions
| Region | Roughly its share of the world stock market | One fund that covers it |
|---|---|---|
| United States | About 60% | VTI |
| Developed markets outside the US (Europe, Japan) | About 30% | VXUS |
| Emerging markets (China, India, Brazil...) | About 10% | VXUS |
Simple vehicles for a beginner portfolio
| Vehicle | Role in a beginner portfolio | Example |
|---|---|---|
| Total-market index fund / ETF | The core -- one fund holds thousands of companies | VTI, VXUS, BND |
| Target-date fund | All-in-one; picks the mix and rebalances for you | Vanguard Target Retirement |
| Individual stocks | Optional 'satellite' -- keep it small | Any single company |
How one total-market fund spreads risk for you
A single total-market fund like VTI already holds every sector in proportion, so you get sector diversification for free. The risks actually worth managing are holding too little in bonds for your time horizon, too little outside the US, and too much in any one stock. (Long-run asset-class behavior: Ibbotson SBBI 1926-2023; global weights track the MSCI All-Country World Index.)
See how your own money is currently split
Why near-term money does not belong in stocks
Why diversification is called the only free lunch
Spreading individual stocks across sectors
If you do buy individual stocks, spreading them across sectors still matters -- a portfolio that is 80% technology (Apple, Microsoft, Nvidia) lives and dies with one sector. But for most beginners this is a second-order concern: a total-market fund already spreads you across all 11 S&P 500 sectors automatically, from technology and healthcare to financials, consumer staples, and energy.
Sit with the ideas.
You're saving for a house you plan to buy in about 2 years. Where should most of that money sit?
Build a 3-ETF starter portfolio
Allocate $25,000 of your paper cash across three ETFs: a broad-market index (e.g., VTI or SPY), an international fund (e.g., VXUS), and a bond fund (e.g., BND or AGG). Pick the weights you'd actually hold for the next decade.
Open paper portfolio →Practice mode — simulated trades, not investment advice.