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Investing · Beginner · 12 min read

Build Your First Index Portfolio in 60 Minutes

Three funds, one account, one auto-buy. Done.

Who it's for

You have a $1k+ buffer, no high-APR debt, and money sitting in checking.

What you'll have at the end

A diversified, automated, tax-aware portfolio with under 0.10% in total fees.

You do not need to pick stocks. You do not need to predict the market. A three-fund index portfolio beats most professionals over 20 years because it costs almost nothing and you don't trade it.

Total expense ratio
Under 0.10%
Funds held
3
Trades per year
0–1
  1. 01

    Open the right account, in the right order

    Fill these buckets top to bottom — each one is more tax-efficient than the next:

    • 1. 401(k) up to the employer match (free money, ~100% return)
    • 2. Roth IRA up to the annual limit (tax-free growth)
    • 3. 401(k) up to the annual limit (tax-deferred)
    • 4. Taxable brokerage for anything beyond
    Compare Roth vs 401(k)
  2. 02

    Pick three funds

    Total US stock market, total international stock market, total US bond market. Pick the lowest-fee version your broker offers (Vanguard, Fidelity, Schwab all have <0.05% versions).

    PitfallBuying actively managed funds. They charge 1%+ and statistically lose to the index.
  3. 03

    Set the allocation by age

    A defensible starting point is 'age in bonds' (e.g. 30 yrs old → 70% stocks / 30% bonds). Younger and aggressive: 90/10. Closer to retirement: 60/40.

    Run the allocation tool
  4. 04

    Automate the buys

    Set a recurring transfer + automatic investment on payday. This is dollar-cost averaging — it removes timing and emotion from the equation.

    DCA vs lump sum
  5. 05

    Set rebalance rules and walk away

    Rebalance once a year, or when any allocation drifts more than 5 percentage points. Do not check daily. Do not sell on red days.

    PitfallWatching the portfolio every day. The S&P 500 has positive years ~73% of the time and positive days only ~54%.
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