Wall Street RegretsThe regret calculator.

What if you'd held AKTX?

A $1,000 investment in Akari Therapeutics Plc (AKTX) at the month-end close of 2014-01 would be worth $0.11 at the close of 2026-08 — -100.0% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $4,324.

$1,000 since 2014$0.11Total return-100.0%Multiple0.00×CAGR-51.5%

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$0.11Gain+$-1,000 (-100.0%)Multiple0.0×CAGR-51.5%

    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.

    2014$0.112015$0.212016$0.682017$1.402018$2.282019$6.292020$5.642021$5.342022$6.582023$21.012024$63.302025$1622026$683

    Every year, $1,000 from 2014

    YearValue of $1,000Year return
    2014$1,000
    2015$302-69.8%
    2016$147-51.4%
    2017$90.21-38.5%
    2018$32.71-63.7%
    2019$36.46+11.5%
    2020$38.54+5.7%
    2021$31.25-18.9%
    2022$9.79-68.7%
    2023$3.25-66.8%
    2024$1.27-60.9%
    2025$0.30-76.3%
    2026$0.21-31.7%

    Best and worst month-end to buy

    The best single month-end close to have bought AKTX was 2026-03 ($5.15): $1,000 then is $1,534 today. The worst was 2014-01 ($71,200): $1,000 then is $0.11.

    FAQ

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

    A $1,000 investment in Akari Therapeutics Plc (AKTX) at the start of 2014 would be worth about $0.11 today, a total return of -100.0%. Dividends are reinvested in these figures.

    What were the best and worst years for AKTX?

    Akari Therapeutics Plc (AKTX)'s strongest calendar year since 2014 was 2019, a +11.5% return — $1,000 held through that year became about $1,115 by year-end. Its weakest year was 2025, at -76.3%.

    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 AKTX have grown?

    Investing $100 at the end of every month since 2014-01 would have grown to about $1,314 on $15,200 invested.

    Did AKTX beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $4,324. AKTX 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

    Akari Therapeutics Plc (AKTX) historical total-return data from 2014-01 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.