What if you'd held SGI?
A $1,000 investment in Somnigroup International Inc. (SGI) at the month-end close of 2003-12 would be worth $18,587 at the close of 2026-08 — +1758.7% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $6,932.
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 2026-08, dividends included.
Every year, $1,000 from 2003
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2003 | $1,000 | — |
| 2004 | $1,368 | +36.8% |
| 2005 | $742 | -45.8% |
| 2006 | $1,320 | +77.9% |
| 2007 | $1,695 | +28.4% |
| 2008 | $472 | -72.1% |
| 2009 | $1,573 | +233.2% |
| 2010 | $2,667 | +69.5% |
| 2011 | $3,497 | +31.1% |
| 2012 | $2,097 | -40.1% |
| 2013 | $3,593 | +71.4% |
| 2014 | $3,656 | +1.8% |
| 2015 | $4,691 | +28.3% |
| 2016 | $4,546 | -3.1% |
| 2017 | $4,174 | -8.2% |
| 2018 | $2,756 | -34.0% |
| 2019 | $5,796 | +110.3% |
| 2020 | $7,191 | +24.1% |
| 2021 | $12,626 | +75.6% |
| 2022 | $9,344 | -26.0% |
| 2023 | $14,024 | +50.1% |
| 2024 | $15,755 | +12.3% |
| 2025 | $25,020 | +58.8% |
| 2026 | $18,587 | -25.7% |
Best and worst month-end to buy
The best single month-end close to have bought SGI was 2009-02 ($1.45): $1,000 then is $45,468 today. The worst was 2025-11 ($91.10): $1,000 then is $725.
FAQ
What would $1,000 in SGI be worth today?
A $1,000 investment in Somnigroup International Inc. (SGI) at the start of 2003 would be worth about $18,587 today, a total return of +1758.7%. Dividends are reinvested in these figures.
What were the best and worst years for SGI?
Somnigroup International Inc. (SGI)'s strongest calendar year since 2003 was 2009, a +233.2% return — $1,000 held through that year became about $3,332 by year-end. Its weakest year was 2008, at -72.1%.
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 SGI have grown?
Investing $100 at the end of every month since 2003-12 would have grown to about $226,685 on $27,300 invested.
Did SGI beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $6,932. SGI beat the S&P 500 by +168.1% 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
Somnigroup International Inc. (SGI) historical total-return data from 2003-12 to 2026-08, reduced to month-end closes for the tables above.
Returns use adjusted close prices from Yahoo Finance historical data — adjusted for stock splits and reinvested dividends — the same convention used by major brokerages. 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 (Yahoo Finance): 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 Yahoo Finance. As of 2026-08. Not financial advice.