Wall Street RegretsThe regret calculator.

What if you'd held AM?

A $1,000 investment in Antero Midstream Corporation (AM) at the month-end close of 2017-05 would be worth $2,240 at the close of 2026-08 — +124.0% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $3,196.

$1,000 since 2017$2,240Total return+124.0%Multiple2.2×CAGR+9.1%

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$2,240Gain+$1,240 (+124.0%)Multiple2.2×CAGR+9.1%

    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$2,2402018$2,4972019$4,2952020$5,6902021$4,4572022$3,1892023$2,6162024$2,0802025$1,6202026$1,302

    Every year, $1,000 from 2017

    YearValue of $1,000Year return
    2017$1,000
    2018$581-41.9%
    2019$439-24.5%
    2020$560+27.7%
    2021$783+39.8%
    2022$954+21.9%
    2023$1,200+25.8%
    2024$1,541+28.4%
    2025$1,918+24.4%
    2026$2,497+30.2%

    Best and worst month-end to buy

    The best single month-end close to have bought AM was 2020-03 ($1.15): $1,000 then is $19,496 today. The worst was 2026-06 ($22.51): $1,000 then is $996.

    FAQ

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

    A $1,000 investment in Antero Midstream Corporation (AM) at the start of 2017 would be worth about $2,240 today, a total return of +124.0%. Dividends are reinvested in these figures.

    What were the best and worst years for AM?

    Antero Midstream Corporation (AM)'s strongest calendar year since 2017 was 2021, a +39.8% return — $1,000 held through that year became about $1,398 by year-end. Its weakest year was 2018, at -41.9%.

    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 AM have grown?

    Investing $100 at the end of every month since 2017-05 would have grown to about $35,880 on $11,200 invested.

    Did AM beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $3,196. AM trailed the S&P 500 by +29.9% 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

    Antero Midstream Corporation (AM) historical total-return data from 2017-05 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.