Wall Street RegretsThe regret calculator.

What if you'd held MGNI?

A $1,000 investment in Magnite, Inc. (MGNI) at the month-end close of 2014-04 would be worth $1,660 at the close of 2026-08 — +66.0% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $4,091.

$1,000 since 2014$1,660Total return+66.0%Multiple1.7×CAGR+4.2%

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$1,660Gain+$660 (+66.0%)Multiple1.7×CAGR+4.2%

    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$1,6602015$1,4782016$1,4502017$3,2142018$12,7542019$6,3942020$2,9232021$7772022$1,3632023$2,2522024$2,5542025$1,4982026$1,470

    Every year, $1,000 from 2014

    YearValue of $1,000Year return
    2014$1,000
    2015$1,019+1.9%
    2016$460-54.9%
    2017$116-74.8%
    2018$231+99.5%
    2019$506+118.8%
    2020$1,903+276.3%
    2021$1,084-43.0%
    2022$656-39.5%
    2023$579-11.8%
    2024$986+70.4%
    2025$1,006+1.9%
    2026$1,478+47.0%

    Best and worst month-end to buy

    The best single month-end close to have bought MGNI was 2018-02 ($1.61): $1,000 then is $14,814 today. The worst was 2021-02 ($48.87): $1,000 then is $488.

    FAQ

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

    A $1,000 investment in Magnite, Inc. (MGNI) at the start of 2014 would be worth about $1,660 today, a total return of +66.0%. Dividends are reinvested in these figures.

    What were the best and worst years for MGNI?

    Magnite, Inc. (MGNI)'s strongest calendar year since 2014 was 2020, a +276.3% return — $1,000 held through that year became about $3,763 by year-end. Its weakest year was 2017, at -74.8%.

    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 MGNI have grown?

    Investing $100 at the end of every month since 2014-04 would have grown to about $44,336 on $14,900 invested.

    Did MGNI beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $4,091. MGNI trailed the S&P 500 by +59.4% 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

    Magnite, Inc. (MGNI) historical total-return data from 2014-04 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.