Buy The Haystack
What does your money actually become?
Compound interest is the most powerful force in investing. Move the sliders to see exactly what consistent investing actually turns into over time.
Starting amount
$10,000
Monthly contribution
$500/mo
Annual return
10.0%
Years investing
30 years
Final portfolio value
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Total you invested
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Market did for you
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Portfolio growth over time
Year 5
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Year 10
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Year 20
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Final year
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Where your money comes from
What you put in
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What the market added
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The insight
Adjust the sliders to see your results.
How to capture this growth
The S&P 500 has returned approximately 10% annually over the last 30 years. A low-cost index fund like VOO charges just 0.03% to own it. Open a brokerage or robo-advisor account, set up automatic monthly contributions, and let compounding do the rest. The hardest part is starting — not managing it. Not financial advice — just the math.