What if you'd held ISBA?
A $1,000 investment in Isabella Bank Corporation (ISBA) at the month-end close of 2006-01 would be worth $2,198 at the close of 2026-08 — +119.8% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $6,021.
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 2006
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2006 | $1,000 | — |
| 2007 | $954 | -4.6% |
| 2008 | $648 | -32.1% |
| 2009 | $501 | -22.7% |
| 2010 | $476 | -4.9% |
| 2011 | $679 | +42.5% |
| 2012 | $645 | -5.0% |
| 2013 | $732 | +13.5% |
| 2014 | $718 | -1.9% |
| 2015 | $992 | +38.1% |
| 2016 | $957 | -3.5% |
| 2017 | $998 | +4.3% |
| 2018 | $828 | -17.0% |
| 2019 | $934 | +12.7% |
| 2020 | $800 | -14.3% |
| 2021 | $1,090 | +36.2% |
| 2022 | $1,052 | -3.5% |
| 2023 | $1,015 | -3.5% |
| 2024 | $1,297 | +27.7% |
| 2025 | $2,582 | +99.1% |
| 2026 | $2,090 | -19.1% |
Best and worst month-end to buy
The best single month-end close to have bought ISBA was 2009-10 ($8.19): $1,000 then is $4,877 today. The worst was 2025-12 ($49.34): $1,000 then is $809.
FAQ
What would $1,000 in ISBA be worth today?
A $1,000 investment in Isabella Bank Corporation (ISBA) at the start of 2006 would be worth about $2,198 today, a total return of +119.8%. Dividends are reinvested in these figures.
What were the best and worst years for ISBA?
Isabella Bank Corporation (ISBA)'s strongest calendar year since 2006 was 2025, a +99.1% return — $1,000 held through that year became about $1,991 by year-end. Its weakest year was 2008, at -32.1%.
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 ISBA have grown?
Investing $100 at the end of every month since 2006-01 would have grown to about $63,909 on $24,800 invested.
Did ISBA beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $6,021. ISBA trailed the S&P 500 by +63.5% 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
Isabella Bank Corporation (ISBA) historical total-return data from 2006-01 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.