What if you'd held ILMN?
A $1,000 investment in Illumina, Inc. (ILMN) at the month-end close of 2000-07 would be worth $13,021 at the close of 2026-09 — +1202.1% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $8,762.
Your scenario
Result
If you'd bought $1,000 at the start of each year
Value of $1,000 invested on January 1 of each year, held to 2026-09, dividends included.
Every year, $1,000 from 2000
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2000 | $1,000 | — |
| 2001 | $732 | -26.8% |
| 2002 | $210 | -71.3% |
| 2003 | $439 | +109.2% |
| 2004 | $590 | +34.5% |
| 2005 | $878 | +48.7% |
| 2006 | $2,447 | +178.8% |
| 2007 | $3,689 | +50.7% |
| 2008 | $3,243 | -12.1% |
| 2009 | $3,820 | +17.8% |
| 2010 | $7,886 | +106.5% |
| 2011 | $3,795 | -51.9% |
| 2012 | $6,921 | +82.4% |
| 2013 | $13,769 | +98.9% |
| 2014 | $22,981 | +66.9% |
| 2015 | $23,899 | +4.0% |
| 2016 | $15,942 | -33.3% |
| 2017 | $27,203 | +70.6% |
| 2018 | $37,343 | +37.3% |
| 2019 | $41,303 | +10.6% |
| 2020 | $46,067 | +11.5% |
| 2021 | $47,367 | +2.8% |
| 2022 | $25,175 | -46.9% |
| 2023 | $17,336 | -31.1% |
| 2024 | $17,104 | -1.3% |
| 2025 | $16,787 | -1.8% |
| 2026 | $28,371 | +69.0% |
Best and worst month-end to buy
The best single month-end close to have bought ILMN was 2003-04 ($0.97): $1,000 then is $228,988 today. The worst was 2021-07 ($482): $1,000 then is $460.
FAQ
What would $1,000 in ILMN be worth today?
A $1,000 investment in Illumina, Inc. (ILMN) at the start of 2000 would be worth about $13,021 today, a total return of +1202.1%. Dividends are reinvested in these figures.
What were the best and worst years for ILMN?
Illumina, Inc. (ILMN)'s strongest calendar year since 2000 was 2006, a +178.8% return — $1,000 held through that year became about $2,788 by year-end. Its weakest year was 2002, at -71.3%.
Does the calculator include dividends and splits?
Yes where available. Prices are adjusted for both stock splits and reinvested dividends (total return), the same measure brokerages use.
How much would $100 per month in ILMN have grown?
Investing $100 at the end of every month since 2000-07 would have grown to about $549,226 on $31,500 invested.
Did ILMN beat the S&P 500?
Over the same period, $1,000 in the S&P 500 with dividends reinvested (the S&P 500 Total Return index) would be worth $8,762. ILMN beat the S&P 500 by +48.6% in total return.
Is this investment advice?
No. Wall Street Regrets is an entertainment and education tool. Every number is a historical calculation, not a prediction, and past performance never guarantees future results.
Methodology
Illumina, Inc. (ILMN) historical total-return data from 2000-07 to 2026-09, reduced to month-end closes for the tables above.
Returns use adjusted close prices — adjusted for stock splits and reinvested dividends, the same convention used by major brokerages. End-of-day and live prices come from EODHD; parts of the deep historical series are carried over from Yahoo Finance data. A "year" scenario invests $1,000 at the prior December's month-end close and values it at the latest available month-end close. Non-USD amounts are converted at historical month-end exchange rates (EODHD): to USD on the buy date and back to your currency at the latest rate, so the return reflects the currency move as well as the asset.
Month-end resolution means intra-month extremes are not captured in tables; the calculator uses exact trading-day closes where daily data is available. Figures ignore taxes, fees, and the currency effects of non-USD listings. History is not a forecast. Wall Street Regrets is entertainment, not investment advice.
What if you'd held…
Data: adjusted close prices via EODHD and Yahoo Finance. As of 2026-09-03. Not financial advice.