Wall Street RegretsThe regret calculator.

What if you'd held CDLX?

A $1,000 investment in Cardlytics, Inc. (CDLX) at the month-end close of 2018-02 would be worth $23.42 at the close of 2026-08 — -97.7% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $2,840.

$1,000 since 2018$23.42Total return-97.7%Multiple0.02×CAGR-35.7%

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$23.42Gain+$-977 (-97.7%)Multiple0.0×CAGR-35.7%

    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.

    2018$23.422019$39.342020$6.782021$2.982022$6.452023$73.702024$46.252025$1152026$370

    Every year, $1,000 from 2018

    YearValue of $1,000Year return
    2018$1,000
    2019$5,804+480.4%
    2020$13,183+127.1%
    2021$6,102-53.7%
    2022$534-91.3%
    2023$850+59.3%
    2024$343-59.7%
    2025$106-69.0%
    2026$39.34-63.0%

    Best and worst month-end to buy

    The best single month-end close to have bought CDLX was 2026-07 ($3.80): $1,000 then is $1,121 today. The worst was 2020-12 ($1,428): $1,000 then is $2.98.

    FAQ

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

    A $1,000 investment in Cardlytics, Inc. (CDLX) at the start of 2018 would be worth about $23.42 today, a total return of -97.7%. Dividends are reinvested in these figures.

    What were the best and worst years for CDLX?

    Cardlytics, Inc. (CDLX)'s strongest calendar year since 2018 was 2019, a +480.4% return — $1,000 held through that year became about $5,804 by year-end. Its weakest year was 2022, at -91.3%.

    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 CDLX have grown?

    Investing $100 at the end of every month since 2018-02 would have grown to about $1,115 on $10,300 invested.

    Did CDLX beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $2,840. CDLX trailed the S&P 500 by +99.2% 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

    Cardlytics, Inc. (CDLX) historical total-return data from 2018-02 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.