Wall Street RegretsThe regret calculator.

What if you'd held MNOV?

A $1,000 investment in MediciNova, Inc. (MNOV) at the month-end close of 2006-12 would be worth $104 at the close of 2026-08 — -89.6% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $5,435.

$1,000 since 2006$104Total return-89.6%Multiple0.10×CAGR-10.9%

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$104Gain+$-896 (-89.6%)Multiple0.1×CAGR-10.9%

    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.

    2006$1042007$1042008$3002009$8682010$1962011$2932012$8122013$8412014$6452015$4542016$3892017$2292018$2132019$1692020$2052021$2622022$5152023$6732024$9202025$6572026$1,053

    Every year, $1,000 from 2006

    YearValue of $1,000Year return
    2006$1,000
    2007$346-65.4%
    2008$120-65.4%
    2009$530+342.8%
    2010$355-33.1%
    2011$128-63.9%
    2012$123-3.5%
    2013$161+30.5%
    2014$229+42.1%
    2015$267+16.8%
    2016$454+69.9%
    2017$487+7.3%
    2018$615+26.3%
    2019$508-17.5%
    2020$396-22.0%
    2021$202-49.0%
    2022$154-23.5%
    2023$113-26.8%
    2024$158+40.0%
    2025$98.64-37.6%
    2026$104+5.3%

    Best and worst month-end to buy

    The best single month-end close to have bought MNOV was 2025-09 ($1.27): $1,000 then is $1,087 today. The worst was 2006-12 ($13.28): $1,000 then is $104.

    FAQ

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

    A $1,000 investment in MediciNova, Inc. (MNOV) at the start of 2006 would be worth about $104 today, a total return of -89.6%. Dividends are reinvested in these figures.

    What were the best and worst years for MNOV?

    MediciNova, Inc. (MNOV)'s strongest calendar year since 2006 was 2009, a +342.8% return — $1,000 held through that year became about $4,428 by year-end. Its weakest year was 2008, at -65.4%.

    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 MNOV have grown?

    Investing $100 at the end of every month since 2006-12 would have grown to about $11,034 on $23,700 invested.

    Did MNOV beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $5,435. MNOV trailed the S&P 500 by +98.1% 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

    MediciNova, Inc. (MNOV) historical total-return data from 2006-12 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.