Wall Street RegretsThe regret calculator.

What if you'd held GPRE?

A $1,000 investment in Green Plains, Inc. (GPRE) at the month-end close of 2006-03 would be worth $536 at the close of 2026-08 — -46.4% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $5,953.

$1,000 since 2006$536Total return-46.4%Multiple0.54×CAGR-3.0%

Your scenario

Dates resolve to the nearest month-end close.
Leave empty for "held until today".
Invested at each month-end. Starts on the buy date.

Result

Worth$536Gain+$-464 (-46.4%)Multiple0.5×CAGR-3.0%

    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.

    2006$5362007$7322008$1,3632009$9,8342010$1,2182011$1,6082012$1,8552013$2,2902014$9302015$7222016$7672017$6162018$9932019$1,2422020$1,0392021$1,2172022$4612023$5262024$6362025$1,6912026$1,636

    Every year, $1,000 from 2006

    YearValue of $1,000Year return
    2006$1,000
    2007$537-46.3%
    2008$74.43-86.1%
    2009$601+707.4%
    2010$455-24.2%
    2011$395-13.3%
    2012$320-19.0%
    2013$787+146.3%
    2014$1,013+28.7%
    2015$954-5.9%
    2016$1,189+24.7%
    2017$737-38.0%
    2018$589-20.1%
    2019$705+19.5%
    2020$601-14.6%
    2021$1,587+163.9%
    2022$1,393-12.3%
    2023$1,152-17.3%
    2024$433-62.4%
    2025$447+3.4%
    2026$732+63.6%

    Best and worst month-end to buy

    The best single month-end close to have bought GPRE was 2009-02 ($1.24): $1,000 then is $12,927 today. The worst was 2014-08 ($39.93): $1,000 then is $401.

    FAQ

    What would $1,000 in GPRE be worth today?

    A $1,000 investment in Green Plains, Inc. (GPRE) at the start of 2006 would be worth about $536 today, a total return of -46.4%. Dividends are reinvested in these figures.

    What were the best and worst years for GPRE?

    Green Plains, Inc. (GPRE)'s strongest calendar year since 2006 was 2009, a +707.4% return — $1,000 held through that year became about $8,074 by year-end. Its weakest year was 2008, at -86.1%.

    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 GPRE have grown?

    Investing $100 at the end of every month since 2006-03 would have grown to about $35,332 on $24,600 invested.

    Did GPRE beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $5,953. GPRE trailed the S&P 500 by +91.0% 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

    Green Plains, Inc. (GPRE) historical total-return data from 2006-03 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.

    Full methodology →

    What if you'd held…

    Data: adjusted close prices via Yahoo Finance. As of 2026-08. Not financial advice.