Wall Street RegretsThe regret calculator.

What if you'd held ICLN?

A $1,000 investment in iShares Global Clean Energy ETF (ICLN) at the month-end close of 2008-06 would be worth $508 at the close of 2026-09 — -49.2% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $8,515.

$1,000 since 2008$508Total return-49.2%Multiple0.51×CAGR-3.6%

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$508Gain+$-492 (-49.2%)Multiple0.5×CAGR-3.6%

    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 2026-09, dividends included.

    2008$5082009$1,1932010$1,1322011$1,5602012$2,7852013$3,1962014$2,1412015$2,2492016$2,1672017$2,6092018$2,1462019$2,3602020$1,6352021$6762022$8922023$9432024$1,1852025$1,5952026$1,084

    Every year, $1,000 from 2008

    YearValue of $1,000Year return
    2008$1,000
    2009$1,054+5.4%
    2010$765-27.5%
    2011$428-44.0%
    2012$373-12.9%
    2013$557+49.3%
    2014$531-4.8%
    2015$551+3.8%
    2016$457-17.0%
    2017$556+21.6%
    2018$506-9.1%
    2019$730+44.4%
    2020$1,766+141.9%
    2021$1,338-24.2%
    2022$1,266-5.4%
    2023$1,007-20.4%
    2024$748-25.7%
    2025$1,101+47.1%
    2026$1,193+8.4%

    Best and worst month-end to buy

    The best single month-end close to have bought ICLN was 2012-07 ($4.81): $1,000 then is $3,694 today. The worst was 2008-06 ($34.99): $1,000 then is $508.

    FAQ

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

    A $1,000 investment in iShares Global Clean Energy ETF (ICLN) at the start of 2008 would be worth about $508 today, a total return of -49.2%. Dividends are reinvested in these figures.

    What were the best and worst years for ICLN?

    iShares Global Clean Energy ETF (ICLN)'s strongest calendar year since 2008 was 2020, a +141.9% return — $1,000 held through that year became about $2,419 by year-end. Its weakest year was 2011, at -44.0%.

    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 ICLN have grown?

    Investing $100 at the end of every month since 2008-06 would have grown to about $37,559 on $22,000 invested.

    Did ICLN beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 with dividends reinvested (the S&P 500 Total Return index) would be worth $8,515. ICLN trailed the S&P 500 by +94.0% 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

    iShares Global Clean Energy ETF (ICLN) historical total-return data from 2008-06 to 2026-09, reduced to month-end closes for the tables above.

    Returns use adjusted close prices — adjusted for stock splits and reinvested dividends, the same convention used by major brokerages. End-of-day and live prices come from EODHD; parts of the deep historical series are carried over from Yahoo Finance data. 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 (EODHD): 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 EODHD and Yahoo Finance. As of 2026-09-04. Not financial advice.