Wall Street RegretsThe regret calculator.

What if you'd held NCNA?

A $1,000 investment in NuCana plc (NCNA) at the month-end close of 2017-09 would be worth $0.02 at the close of 2026-08 — -100.0% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $3,059.

$1,000 since 2017$0.02Total return-100.0%Multiple0.00×CAGR-70.8%

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$0.02Gain+$-1,000 (-100.0%)Multiple0.0×CAGR-70.8%

    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$0.022018$0.032019$0.022020$0.052021$0.072022$0.132023$0.472024$1.052025$6.512026$431

    Every year, $1,000 from 2017

    YearValue of $1,000Year return
    2017$1,000
    2018$1,434+43.4%
    2019$603-57.9%
    2020$444-26.4%
    2021$235-47.0%
    2022$65.28-72.3%
    2023$29.28-55.2%
    2024$4.71-83.9%
    2025$0.07-98.5%
    2026$0.03-56.9%

    Best and worst month-end to buy

    The best single month-end close to have bought NCNA was 2026-07 ($1.32): $1,000 then is $1,174 today. The worst was 2018-05 ($135,900): $1,000 then is $0.01.

    FAQ

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

    A $1,000 investment in NuCana plc (NCNA) at the start of 2017 would be worth about $0.02 today, a total return of -100.0%. Dividends are reinvested in these figures.

    What were the best and worst years for NCNA?

    NuCana plc (NCNA)'s strongest calendar year since 2017 was 2018, a +43.4% return — $1,000 held through that year became about $1,434 by year-end. Its weakest year was 2025, at -98.5%.

    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 NCNA have grown?

    Investing $100 at the end of every month since 2017-09 would have grown to about $965 on $10,800 invested.

    Did NCNA beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $3,059. NCNA 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

    NuCana plc (NCNA) historical total-return data from 2017-09 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.