What if you'd held MAIN?
A $1,000 investment in Main Street Capital Corporation (MAIN) at the month-end close of 2007-10 would be worth $19,455 at the close of 2026-08 — +1845.5% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $4,975.
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 2007
| Year | Value of $1,000 | Year return |
|---|---|---|
| 2007 | $1,000 | — |
| 2008 | $791 | -20.9% |
| 2009 | $1,463 | +85.0% |
| 2010 | $1,818 | +24.2% |
| 2011 | $2,324 | +27.9% |
| 2012 | $3,564 | +53.3% |
| 2013 | $4,166 | +16.9% |
| 2014 | $4,041 | -3.0% |
| 2015 | $4,385 | +8.5% |
| 2016 | $6,027 | +37.4% |
| 2017 | $6,997 | +16.1% |
| 2018 | $6,419 | -8.3% |
| 2019 | $8,784 | +36.8% |
| 2020 | $7,068 | -19.5% |
| 2021 | $10,483 | +48.3% |
| 2022 | $9,291 | -11.4% |
| 2023 | $11,912 | +28.2% |
| 2024 | $17,547 | +47.3% |
| 2025 | $19,432 | +10.7% |
| 2026 | $19,652 | +1.1% |
Best and worst month-end to buy
The best single month-end close to have bought MAIN was 2008-11 ($2.25): $1,000 then is $25,853 today. The worst was 2025-08 ($61.51): $1,000 then is $946.
FAQ
What would $1,000 in MAIN be worth today?
A $1,000 investment in Main Street Capital Corporation (MAIN) at the start of 2007 would be worth about $19,455 today, a total return of +1845.5%. Dividends are reinvested in these figures.
What were the best and worst years for MAIN?
Main Street Capital Corporation (MAIN)'s strongest calendar year since 2007 was 2009, a +85.0% return — $1,000 held through that year became about $1,850 by year-end. Its weakest year was 2008, at -20.9%.
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 MAIN have grown?
Investing $100 at the end of every month since 2007-10 would have grown to about $135,842 on $22,700 invested.
Did MAIN beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $4,975. MAIN beat the S&P 500 by +291.1% 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
Main Street Capital Corporation (MAIN) historical total-return data from 2007-10 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.