What would your portfolio look like today if you had invested differently? The Investment Time Machine answers the question every investor has asked at least once: “What if I had invested $1,000 in [stock] back in 2026?”

Enter any publicly traded stock, ETF, or cryptocurrency, pick your investment amount and date, and get an instant answer with a full growth chart. The calculator pulls real historical prices from the date of each asset’s IPO to today.

Calculator type

One investment amount, invested once at your start month.

Three fields, one obsession: symbol, amount (once), start month. History does the rest.

Pick 1

Step 2 Amount and when you would have started.

For one-time mode: total dollars. For monthly mode: that same amount each month.

Historical prices through today. Past performance does not predict the future.

Disclaimer

This tool shows hypothetical results from historical prices. It is not investment, tax, or legal advice. Past performance does not predict future returns. Estimates ignore fees, taxes, slippage, and corporate actions unless noted.

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Investment Time Machine

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One timeline: your amount, your ticker, your starting month. Flip to Advanced when you want the head-to-head. Not advice — estimates only.

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Frequency

How It Works

1

Select your investment type

Choose between stocks, ETFs, or cryptocurrencies for your investment scenario.

2

Enter your details

Type the ticker symbol (e.g., AAPL, BTC, NVDA). The autocomplete helps you find any asset.

3

Choose your investment date

Select when you would have invested — the calculator supports data going back to each asset's IPO.

4

Enter your investment amount

Specify how much you would have invested (e.g., $1,000). Any amount works.

5

View your results

See portfolio value over time on the chart, optional second-ticker comparison, S&P 500 benchmark, monthly DCA or lump-sum modes, risk stats, tax estimate, and yearly/monthly growth tables.

What This Calculator Covers

The Time Machine supports over 10,000 assets across multiple categories. Type any valid ticker symbol and the calculator fetches real split-adjusted historical prices going back to each asset’s IPO date.

📈 5,000+ US Stocks 📊 2,000+ ETFs 🪙 100+ Cryptos 🌍 International ADRs

Popular Scenarios to Try

Not sure where to start? Click any card below to auto-fill the calculator with that scenario, or try your own combination.

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$1,000 in Bitcoin (2015)
Before the mainstream crypto boom. BTC was under $300.
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$1,000 in NVIDIA (2019)
Before the AI supercycle made NVIDIA a household name.
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$1,000 in Tesla (2012)
When the Model S was just a prototype and Musk was a gamble.
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$1,000 in Amazon (2001)
Post dot-com crash. Amazon bottomed under $6 per share.
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$1,000 in S&P 500 (2009)
Buying at the bottom of the Great Financial Crisis.
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$1,000 in Apple (2003)
Before iPhone, iPad, and the world’s most valuable company.

Understanding Your Results

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Dividends Not Included
The calculator uses price returns only. For dividend payers like Apple, Microsoft, and the S&P 500, actual returns would be higher. Dividends historically add 1.5-2% per year.
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Taxes & Fees Excluded
Real-world returns depend on your tax bracket and account type (taxable vs. IRA/401k). Most brokerages now offer commission-free trading, but that was not the case before 2019.
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Past ≠ Future Returns
A stock that returned 500% over 5 years could easily lose 50% in the next 12 months. Use the Time Machine for context and education, not as a reason to chase past winners.

The Power of Compounding

✨ $10,000 at 10% Annual Returns

At 10% annual returns (roughly the S&P 500’s long-term average), the growth is not linear — it accelerates. The second decade produces more than double the first, and the third decade dwarfs both combined. Starting early matters far more than starting big.

10 Years
$25,937
20 Years
$67,275
30 Years
$174,494

An investor who puts away $200/month starting at age 25 will likely have more at 65 than someone who starts investing $400/month at age 35, assuming the same market returns. Time in the market beats timing the market, and the Time Machine makes this viscerally real.

Disclaimer: This article is for informational purposes only and does not constitute investment advice. TECHi and its authors may hold positions in securities mentioned. Always conduct your own research and consult a licensed financial advisor before making investment decisions. Past performance does not guarantee future results.