Wall Street RegretsThe regret calculator.

What if you'd held MGY?

A $1,000 investment in Magnolia Oil & Gas Corporation Class A (MGY) at the month-end close of 2017-06 would be worth $3,058 at the close of 2026-08 — +205.8% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $3,181.

$1,000 since 2017$3,058Total return+205.8%Multiple3.1×CAGR+13.0%

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$3,058Gain+$2,058 (+205.8%)Multiple3.1×CAGR+13.0%

    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.

    2017$3,0582018$3,1562019$2,7442020$2,4442021$4,3572022$1,6212023$1,2812024$1,3812025$1,2312026$1,280

    Every year, $1,000 from 2017

    YearValue of $1,000Year return
    2017$1,000
    2018$1,150+15.0%
    2019$1,292+12.3%
    2020$724-43.9%
    2021$1,947+168.8%
    2022$2,464+26.5%
    2023$2,286-7.2%
    2024$2,564+12.2%
    2025$2,466-3.8%
    2026$3,156+28.0%

    Best and worst month-end to buy

    The best single month-end close to have bought MGY was 2020-03 ($3.58): $1,000 then is $7,679 today. The worst was 2026-03 ($31.16): $1,000 then is $882.

    FAQ

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

    A $1,000 investment in Magnolia Oil & Gas Corporation Class A (MGY) at the start of 2017 would be worth about $3,058 today, a total return of +205.8%. Dividends are reinvested in these figures.

    What were the best and worst years for MGY?

    Magnolia Oil & Gas Corporation Class A (MGY)'s strongest calendar year since 2017 was 2021, a +168.8% return — $1,000 held through that year became about $2,688 by year-end. Its weakest year was 2020, at -43.9%.

    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 MGY have grown?

    Investing $100 at the end of every month since 2017-06 would have grown to about $24,448 on $11,100 invested.

    Did MGY beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $3,181. MGY trailed the S&P 500 by +3.9% 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

    Magnolia Oil & Gas Corporation Class A (MGY) historical total-return data from 2017-06 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.