Wall Street RegretsThe regret calculator.

What if you'd held NRGV?

A $1,000 investment in Energy Vault Holdings, Inc. (NRGV) at the month-end close of 2021-03 would be worth $398 at the close of 2026-08 — -60.2% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $1,940.

$1,000 since 2021$398Total return-60.2%Multiple0.40×CAGR-15.6%

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$398Gain+$-602 (-60.2%)Multiple0.4×CAGR-15.6%

    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 2026-08, dividends included.

    2021$3982022$3902023$1,2372024$1,6572025$1,6932026$837

    Every year, $1,000 from 2021

    YearValue of $1,000Year return
    2021$1,000
    2022$315-68.5%
    2023$235-25.3%
    2024$230-2.1%
    2025$466+102.2%
    2026$390-16.3%

    Best and worst month-end to buy

    The best single month-end close to have bought NRGV was 2025-03 ($0.69): $1,000 then is $5,554 today. The worst was 2022-03 ($15.90): $1,000 then is $243.

    FAQ

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

    A $1,000 investment in Energy Vault Holdings, Inc. (NRGV) at the start of 2021 would be worth about $398 today, a total return of -60.2%. Dividends are reinvested in these figures.

    What were the best and worst years for NRGV?

    Energy Vault Holdings, Inc. (NRGV)'s strongest calendar year since 2021 was 2025, a +102.2% return — $1,000 held through that year became about $2,022 by year-end. Its weakest year was 2022, at -68.5%.

    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 NRGV have grown?

    Investing $100 at the end of every month since 2021-03 would have grown to about $10,791 on $6,600 invested.

    Did NRGV beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $1,940. NRGV trailed the S&P 500 by +79.5% 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

    Energy Vault Holdings, Inc. (NRGV) historical total-return data from 2021-03 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.