Wall Street RegretsThe regret calculator.

What if you'd held RNRG?

A $1,000 investment in Global X Renewable Energy Producers ETF (RNRG) at the month-end close of 2015-05 would be worth $1,018 at the close of 2026-08 — +1.8% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $3,658.

$1,000 since 2015$1,018Total return+1.8%Multiple1.0×CAGR+0.2%

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$1,018Gain+$18.31 (+1.8%)Multiple1.0×CAGR+0.2%

    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.

    2015$1,0182016$1,4272017$1,3412018$1,1072019$1,1802020$8612021$6802022$7792023$9202024$1,0552025$1,3532026$1,044

    Every year, $1,000 from 2015

    YearValue of $1,000Year return
    2015$1,000
    2016$1,065+6.5%
    2017$1,290+21.2%
    2018$1,210-6.2%
    2019$1,658+37.0%
    2020$2,100+26.7%
    2021$1,832-12.8%
    2022$1,551-15.3%
    2023$1,352-12.8%
    2024$1,055-22.0%
    2025$1,367+29.6%
    2026$1,427+4.4%

    Best and worst month-end to buy

    The best single month-end close to have bought RNRG was 2016-02 ($21.95): $1,000 then is $1,571 today. The worst was 2020-12 ($50.74): $1,000 then is $680.

    FAQ

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

    A $1,000 investment in Global X Renewable Energy Producers ETF (RNRG) at the start of 2015 would be worth about $1,018 today, a total return of +1.8%. Dividends are reinvested in these figures.

    What were the best and worst years for RNRG?

    Global X Renewable Energy Producers ETF (RNRG)'s strongest calendar year since 2015 was 2019, a +37.0% return — $1,000 held through that year became about $1,370 by year-end. Its weakest year was 2024, at -22.0%.

    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 RNRG have grown?

    Investing $100 at the end of every month since 2015-05 would have grown to about $14,544 on $13,600 invested.

    Did RNRG beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $3,658. RNRG trailed the S&P 500 by +72.2% 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

    Global X Renewable Energy Producers ETF (RNRG) historical total-return data from 2015-05 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.