Wall Street RegretsThe regret calculator.

What if you'd held IIPR?

A $1,000 investment in Innovative Industrial Properties, Inc. (IIPR) at the month-end close of 2016-12 would be worth $5,586 at the close of 2026-08 — +458.6% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $3,443.

$1,000 since 2016$5,586Total return+458.6%Multiple5.6×CAGR+19.5%

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$5,586Gain+$4,586 (+458.6%)Multiple5.6×CAGR+19.5%

    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.

    2016$5,5862017$5,5862018$3,0642019$2,1132020$1,2252021$4872022$3302023$8062024$7412025$1,0372026$1,271

    Every year, $1,000 from 2016

    YearValue of $1,000Year return
    2016$1,000
    2017$1,823+82.3%
    2018$2,644+45.0%
    2019$4,562+72.5%
    2020$11,465+151.3%
    2021$16,911+47.5%
    2022$6,930-59.0%
    2023$7,539+8.8%
    2024$5,387-28.5%
    2025$4,396-18.4%
    2026$5,586+27.1%

    Best and worst month-end to buy

    The best single month-end close to have bought IIPR was 2017-02 ($9.13): $1,000 then is $6,156 today. The worst was 2021-12 ($170): $1,000 then is $330.

    FAQ

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

    A $1,000 investment in Innovative Industrial Properties, Inc. (IIPR) at the start of 2016 would be worth about $5,586 today, a total return of +458.6%. Dividends are reinvested in these figures.

    What were the best and worst years for IIPR?

    Innovative Industrial Properties, Inc. (IIPR)'s strongest calendar year since 2016 was 2020, a +151.3% return — $1,000 held through that year became about $2,513 by year-end. Its weakest year was 2022, at -59.0%.

    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 IIPR have grown?

    Investing $100 at the end of every month since 2016-12 would have grown to about $18,423 on $11,700 invested.

    Did IIPR beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $3,443. IIPR beat the S&P 500 by +62.3% 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

    Innovative Industrial Properties, Inc. (IIPR) historical total-return data from 2016-12 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.