What Would $10k in AAPL + MSFT Be Worth Today? (And in 20 Years?)
In January 2005, Apple was still mostly known for the iPod. Microsoft was the boring giant everyone loved to hate. If you had split $10,000 equally between them and added $500 a month — and done absolutely nothing else — here is exactly what happened.
The numbers: 2005 → 2026
Using real split-adjusted historical prices, a 50/50 Apple + Microsoft portfolio starting January 2005 with $10,000 initial investment and $500/month contributions would have grown to approximately:
For comparison, the same investment in a simple S&P 500 index fund (VOO) over the same period would have grown to roughly $546,000 — outstanding by any measure, but still 4.9× less than the AAPL + MSFT portfolio.
The S&P 500 turned $136k of contributions into $546k. The two-stock tech portfolio turned the same contributions into $2.69 million. Both are remarkable. The difference is concentration risk cutting both ways.
How each stock contributed
| Stock | 2005 price (adj.) | 2026 price | CAGR | $10k → today |
|---|---|---|---|---|
| AAPL 🍎 | ~$1.50 | ~$220 | +26.8%/yr | ~$8.5M (lump sum) |
| MSFT 🪟 | ~$25 | ~$380 | +13.8%/yr | ~$152k (lump sum) |
| S&P 500 | — | — | ~10.5%/yr | ~$74k (lump sum) |
Apple's 26.8%/yr CAGR over 21 years is one of the most extraordinary runs in stock market history — driven by the iPhone (2007), iPad (2010), AirPods, services, and the transition to Apple Silicon. Microsoft's 13.8%/yr reflects the Satya Nadella era transformation: Azure cloud, Microsoft 365, Teams, Copilot, and the OpenAI investment.
The catch: concentration risk
Before you rush to put everything into two stocks, it's worth being honest about what this data doesn't show.
- Survivorship bias: We're looking at two companies that happened to become the world's most valuable. For every Apple or Microsoft, there are dozens of Nokias, BlackBerrys, and Xeroxes that seemed equally dominant at the time.
- Volatility: AAPL dropped -55% in 2008, -44% in 2022. Holding through those drawdowns required genuine conviction — and nerves of steel.
- Hindsight: In 2005, choosing Apple over, say, Dell or Intel was far from obvious. Most analysts preferred the latter two.
This is exactly why the S&P 500 comparison matters. Broad diversification gives up some upside in exchange for dramatically less risk of permanent capital loss. Whether that trade-off is worth it depends entirely on your circumstances, time horizon, and risk tolerance.
What about the next 20 years?
This is where it gets interesting — and where most calculators fall short. Rather than asking you to guess a return rate, we can use each stock's full historical CAGR and run forward projections under three scenarios.
Using Apple's 21-year CAGR of 26.8% and Microsoft's 13.8%, here is what a 50/50 portfolio starting today with $10,000 + $500/month could look like by 2046:
These projections use Monte Carlo simulation — 1,000 different possible futures, each consistent with the portfolio's historical return and volatility. The range reflects genuine uncertainty: markets can perform far better or far worse than their historical average in any given 20-year window.
Past CAGR is not a promise. Apple's next 20 years will not look like its last 20. No company's will. The projection uses historical data as an input, not as a guarantee.
Build your own portfolio projection
Want to run this calculation for your own holdings — or test a completely different combination of stocks? PortfolioCalc does exactly this, for free, using real historical price data for any stock or ETF.
Try it with your own portfolio
Type any ticker symbols, set your contribution amount and time horizon, and see your bear/base/bull projections using real historical CAGR data — not a rate you have to guess.
Build your portfolio for free →Key takeaways
- A 50/50 AAPL + MSFT portfolio started in 2005 with $10k + $500/mo would be worth roughly $2.69M today — 4.9× more than the S&P 500.
- Apple's 26.8%/yr CAGR is exceptional even by tech standards. Expecting it to repeat is optimistic.
- Concentration risk is real: both stocks had -40% to -55% drawdowns along the way.
- Forward projections using Monte Carlo simulation show a $284k–$4.8M range over 20 years — the uncertainty is the honest part.
- A diversified index fund would have turned the same contributions into $546k — still a great outcome, with far less volatility.
All figures use real historical adjusted closing prices. Past performance does not guarantee future results. This article is for educational and informational purposes only and does not constitute financial, investment, or tax advice. Always consult a qualified financial adviser before making investment decisions.