Wall Street RegretsThe regret calculator.

What if you'd held APPN?

A $1,000 investment in Appian Corporation (APPN) at the month-end close of 2017-05 would be worth $2,126 at the close of 2026-08 — +112.6% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $3,196.

$1,000 since 2017$2,126Total return+112.6%Multiple2.1×CAGR+8.5%

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$2,126Gain+$1,126 (+112.6%)Multiple2.1×CAGR+8.5%

    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$2,1262018$1,1922019$1,4052020$9822021$2322022$5762023$1,1532024$9972025$1,1382026$1,060

    Every year, $1,000 from 2017

    YearValue of $1,000Year return
    2017$1,000
    2018$848-15.2%
    2019$1,214+43.1%
    2020$5,149+324.2%
    2021$2,071-59.8%
    2022$1,034-50.1%
    2023$1,196+15.7%
    2024$1,048-12.4%
    2025$1,125+7.4%
    2026$1,192+6.0%

    Best and worst month-end to buy

    The best single month-end close to have bought APPN was 2017-05 ($17.65): $1,000 then is $2,126 today. The worst was 2021-01 ($218): $1,000 then is $172.

    FAQ

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

    A $1,000 investment in Appian Corporation (APPN) at the start of 2017 would be worth about $2,126 today, a total return of +112.6%. Dividends are reinvested in these figures.

    What were the best and worst years for APPN?

    Appian Corporation (APPN)'s strongest calendar year since 2017 was 2020, a +324.2% return — $1,000 held through that year became about $4,242 by year-end. Its weakest year was 2021, at -59.8%.

    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 APPN have grown?

    Investing $100 at the end of every month since 2017-05 would have grown to about $11,170 on $11,200 invested.

    Did APPN beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $3,196. APPN trailed the S&P 500 by +33.5% 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

    Appian Corporation (APPN) 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.