What if you'd held SNY?
A $1,000 investment in Sanofi (SNY) at the month-end close of 2002-07 would be worth $3,681 at the close of 2026-09 — +268.1% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $13,344.
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 2002
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2002 | $1,000 | — |
| 2003 | $1,261 | +26.1% |
| 2004 | $1,365 | +8.3% |
| 2005 | $1,523 | +11.6% |
| 2006 | $1,633 | +7.2% |
| 2007 | $1,650 | +1.0% |
| 2008 | $1,213 | -26.5% |
| 2009 | $1,561 | +28.7% |
| 2010 | $1,350 | -13.5% |
| 2011 | $1,605 | +18.9% |
| 2012 | $2,183 | +36.0% |
| 2013 | $2,557 | +17.1% |
| 2014 | $2,253 | -11.9% |
| 2015 | $2,177 | -3.4% |
| 2016 | $2,152 | -1.2% |
| 2017 | $2,362 | +9.8% |
| 2018 | $2,506 | +6.1% |
| 2019 | $3,018 | +20.4% |
| 2020 | $3,030 | +0.4% |
| 2021 | $3,242 | +7.0% |
| 2022 | $3,257 | +0.5% |
| 2023 | $3,471 | +6.5% |
| 2024 | $3,509 | +1.1% |
| 2025 | $3,682 | +4.9% |
| 2026 | $3,548 | -3.6% |
Best and worst month-end to buy
The best single month-end close to have bought SNY was 2003-03 ($10.48): $1,000 then is $4,221 today. The worst was 2024-09 ($52.28): $1,000 then is $846.
FAQ
What would $1,000 in SNY be worth today?
A $1,000 investment in Sanofi (SNY) at the start of 2002 would be worth about $3,681 today, a total return of +268.1%. Dividends are reinvested in these figures.
What were the best and worst years for SNY?
Sanofi (SNY)'s strongest calendar year since 2002 was 2012, a +36.0% return — $1,000 held through that year became about $1,360 by year-end. Its weakest year was 2008, at -26.5%.
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 SNY have grown?
Investing $100 at the end of every month since 2002-07 would have grown to about $54,288 on $29,100 invested.
Did SNY 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 $13,344. SNY trailed the S&P 500 by +72.4% 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
Sanofi (SNY) historical total-return data from 2002-07 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 2026-09-04. Not financial advice.