Wall Street RegretsThe regret calculator.

What if you'd held PRFX?

A $1,000 investment in PRF Technologies Ltd. (PRFX) at the month-end close of 2020-09 would be worth $0.73 at the close of 2026-08 — -99.9% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $2,292.

$1,000 since 2020$0.73Total return-99.9%Multiple0.00×CAGR-70.5%

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$0.73Gain+$-999 (-99.9%)Multiple0.0×CAGR-70.5%

    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.

    2020$0.732021$0.752022$2.532023$8.152024$12.242025$60.212026$315

    Every year, $1,000 from 2020

    YearValue of $1,000Year return
    2020$1,000
    2021$298-70.2%
    2022$92.39-68.9%
    2023$61.52-33.4%
    2024$12.51-79.7%
    2025$2.39-80.9%
    2026$0.75-68.5%

    Best and worst month-end to buy

    The best single month-end close to have bought PRFX was 2026-07 ($1.00): $1,000 then is $1,010 today. The worst was 2021-02 ($1,947): $1,000 then is $0.52.

    FAQ

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

    A $1,000 investment in PRF Technologies Ltd. (PRFX) at the start of 2020 would be worth about $0.73 today, a total return of -99.9%. Dividends are reinvested in these figures.

    What were the best and worst years for PRFX?

    PRF Technologies Ltd. (PRFX)'s strongest calendar year since 2020 was 2023, a -33.4% return — $1,000 held through that year became about $666 by year-end. Its weakest year was 2025, at -80.9%.

    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 PRFX have grown?

    Investing $100 at the end of every month since 2020-09 would have grown to about $787 on $7,200 invested.

    Did PRFX beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $2,292. PRFX trailed the S&P 500 by +100.0% 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

    PRF Technologies Ltd. (PRFX) historical total-return data from 2020-09 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.