What if I had invested $100 a month in ASML
Investing a fixed amount every month, whatever the price: that is dollar-cost averaging. Here is what this strategy would have done in ASML, depending on the year you started.
Since December 2003, ASML (a stock listed in Amsterdam and quoted in euros) grew 52-fold in dollar terms: an annualized return of +18.9% over nearly 23 years. For a monthly investor, almost every purchase was made below today's price: 97% of the 275 monthly buys since December 2003.
Data: Yahoo Finance monthly closing prices, up to date as of (latest update November 4, 2026) MethodAuthor: Yann Avondo
If I had invested $100 every month in ASML since January 2016, today I would have $69,398
Over the same period
Worst moment: −48.7% between August 2021 and September 2022. To get this result, you had to hold on without selling.
ASML at a glance
ASML, a Dutch company, is the only maker of the EUV lithography machines needed for the most advanced chips. This de facto monopoly made it one of Europe’s largest companies.
Its worst fall, 59.4% in dollar terms between September 2007 and November 2008, was only erased in December 2010, 3 years and 3 months after the peak. Against the MSCI World, this calculator's yardstick (+7.0% a year in dollar terms over the same period), ASML left it far behind. Its best calendar year was 2009 (+92.9%), its worst 2008 (−43.6%); in all, 16 up years out of 22.
$100 a month in ASML, by start year
One contribution at the start of each month since January of the given year, valued at the latest price. Click a year for the full story.
| Start | Invested | Worth today | Multiple | Annual IRR |
|---|---|---|---|---|
| $2,300 | $3,451 | ×1.5 | +46.7% | |
| $3,500 | $5,578 | ×1.59 | +33.8% | |
| $4,700 | $8,381 | ×1.78 | +30.6% | |
| $5,900 | $11,603 | ×1.97 | +27.9% | |
| $7,100 | $14,355 | ×2.02 | +23.7% | |
| $8,300 | $19,921 | ×2.4 | +24.9% | |
| $9,500 | $28,726 | ×3.02 | +27.1% | |
| $10,700 | $38,236 | ×3.57 | +27.3% | |
| $11,900 | $51,271 | ×4.31 | +27.8% | |
| $13,100 | $69,398 | ×5.3 | +28.4% | |
| $14,300 | $87,485 | ×6.12 | +27.9% | |
| $15,500 | $107,136 | ×6.91 | +27.1% | |
| $16,700 | $129,824 | ×7.77 | +26.4% | |
| $17,900 | $158,076 | ×8.83 | +25.9% | |
| $19,100 | $193,810 | ×10 | +25.6% | |
| $20,300 | $239,017 | ×12 | +25.3% | |
| $21,500 | $304,142 | ×14 | +25.4% | |
| $22,700 | $365,527 | ×16 | +25.0% | |
| $23,900 | $410,512 | ×17 | +24.2% | |
| $25,100 | $468,605 | ×19 | +23.5% | |
| $26,300 | $543,350 | ×21 | +23.0% | |
| $27,500 | $621,124 | ×23 | +22.5% |
Lump sum or DCA in ASML?
Since January 2016, investing in ASML all at once (lump sum) multiplied the stake by ×16, +29.3% a year. Investing every month (DCA) multiplied the total contributions by ×5.3, an annual return (IRR) of +28.4%.
Here the lump sum did better: money invested early rode the whole rise. That is the most common outcome on an asset that goes up.
Frequently asked questions
How much would I have if I had invested $100 a month in ASML for 10 years?
Investing $100 every month since January 2016, $13,100 in total, would be worth about $69,398 today: an annual return (IRR) of +28.4% (price only, in the displayed currency).
What if I had started investing $100 a month in ASML in 2015?
Since January 2015, $14,300 invested in total would be worth about $87,485 today (IRR of +27.9% a year).
What if I had started investing $100 a month in ASML in 2020?
Since January 2020, $8,300 invested in total would be worth about $19,921 today (IRR of +24.9% a year).
Is investing monthly better than investing all at once?
Historically, investing a lump sum right away returns more in most cases, because markets rise more often than they fall. But monthly investing smooths the purchase price, protects against the worst timing and matches how people actually save: from their paycheck, month after month.
How is the annual return calculated?
With spread-out contributions, the multiple of the amount invested does not tell the whole story: the last dollars had only a few months to grow. The IRR (internal rate of return) is the average annual return that, applied to each contribution from its date, produces the final value.
Compare with
Before you have regrets
What this calculation does not tell you.
Hindsight bias
Picking Nvidia or Bitcoin today means picking known winners. Back then, nothing set them apart from hundreds of assets that went nowhere or vanished.
Holding on was the real test
The result assumes you never sold, including through the drawdowns shown above. Very few investors actually do.
The broad market, no bet required
The MSCI World never makes headlines, but it does not require guessing the winner. It is the fairest yardstick for any pick.
Method: past performance, computed from split-adjusted monthly closing prices (intra-month lows are smoothed out). Converted at each month’s exchange rate; no fees, no taxes. The MSCI World benchmark is the price index, excluding dividends. Sources: Yahoo Finance (prices, exchange rates, US Treasury bills), Eurostat (inflation), published regulated rates (Livret A). Not investment advice. NokxiHub.