What if you invested monthly in Alphabet (Google) for 20 years?
Revisit, using real historical prices, what a monthly dollar-cost-averaging plan into a single stock, Alphabet (Google), might have looked like over 20 years. As a single stock it could beat an index, but its drawdowns can also run far deeper. Look beyond the final value to the maximum drawdown, the time spent underwater, and how long recovery took along the way.
⚠️ This asset is an individual stock chosen as of today, so past returns can look better than they really were (survivorship bias).
Investment conditions
Asset · Alphabet (Google) single stock
Method · Recurring monthly investment
Period · 2006-07-01 ~ 2026-07-01
Amount · $222 / month
As of · 2026-07-01
Key metrics
These results do not reflect taxes. Based on historical data.
Risk & recovery
As important as returns. This service does not hide maximum drawdown or loss periods.
Maximum drawdown (MDD)
-45.7%
Largest drop from peak
Longest loss period
12months
Months in loss: 18
Recovery period
5months
Growth over time
Invested principal (dashed) and portfolio value (solid). Values below match the calculation.
Total invested $53,556 → Final value $748,524 (+1297.7%), Maximum drawdown (MDD) -45.7%
Why this period and asset
Alphabet, Google's parent, is a flagship Big Tech company that grew from search advertising into YouTube, Android, and cloud. Since its 2004 IPO it expanded alongside the advertising market, but in 2022 it corrected sharply on an ad-spending slowdown and rate hikes, followed by continued volatility amid intensifying AI competition. Despite a perception of relative stability, as a single stock it has repeatedly experienced drawdowns far deeper than a broad index. This scenario covers the 20-year window from July 2006 to July 2026.
Interpreting the result
Dollar-cost averaging buys a fixed amount each month, so you buy more shares when the price is low and fewer when it is high, smoothing your average cost. But a single stock, unlike an index, ties your entire outcome to one company's fortunes. On the results screen, don't stop at the final amount; check the maximum drawdown (the largest drop from a peak), the loss period (time spent below your cost), and how long recovery took. For a volatile stock like Alphabet (Google), even the same final return can mean a much deeper and longer drawdown to endure than a broad index. These figures exist not to showcase a good outcome, but to show the process honestly.
Caveats & limits
This calculation is an example based on past prices and does not guarantee future returns; a good past is no proof of a good future. It excludes taxes (capital gains and dividends), trading fees, and USD-based currency effects, so real results will differ. In particular, Alphabet (Google) survived and grew, so beware of survivorship bias: individual stocks that disappeared or lagged for years in the same period are not captured here. Concentrating in one stock also carries concentration risk: if that company runs into trouble, there is no diversification to cushion the loss. This page is educational information, not investment advice.
Data sources & limits
- Price data source: Yahoo Finance / FinanceDataReader
- Collected on: 2026-07-23
- Effective trading date: 2026-07-01
- Price basis: 調整後終値(配当・株式分割を反映)
- This asset is an individual stock chosen as of today, so past returns can look better than they really were (survivorship bias).
- Trading fees and taxes are not reflected — figures are pre-tax.
- Based on historical data; does not guarantee future returns.
Frequently asked questions
How much do I actually contribute over 20 years?
You contribute a fixed monthly amount for 20 years (about 240 contributions). Total principal depends on the number of contributions, and the results screen shows both principal and ending value in USD in this locale. The focus, though, is as much on 'how far it fell and recovered' as on 'what it became.'
How is holding only Alphabet (Google) different from investing in an index?
An index (e.g., the S&P 500) spreads across hundreds of companies, while Alphabet (Google) puts everything on one. When it does well the return can far exceed an index, but if the company stumbles there is nothing to spread the loss across, so the maximum drawdown and loss period are often larger than an index.
Does this result include taxes, fees, and currency effects?
No. It reflects only past price movement and excludes taxes, trading fees, and currency effects. Alphabet paid no dividend for years and began its first dividend in 2024, but this calculation is price-based. In real investing, these factors change the outcome.
Related scenarios
📋 結果は過去のデータに基づくものです。過去のリターンは将来のリターンを保証しません。
📋 本サービスは投資アドバイスではなく、投資を理解するための教育目的で提供されています。
⚠️ 現在の代表的な資産を用いて計算しているため、当時の市場構成とは異なる場合があります。