Wall Street RegretsThe regret calculator.

What if you'd held STIM?

A $1,000 investment in Neuronetics, Inc. (STIM) at the month-end close of 2018-06 would be worth $118 at the close of 2026-08 — -88.2% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $2,836.

$1,000 since 2018$118Total return-88.2%Multiple0.12×CAGR-23.0%

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$118Gain+$-882 (-88.2%)Multiple0.1×CAGR-23.0%

    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.

    2018$1182019$1622020$6992021$2832022$7042023$4572024$1,0832025$1,9502026$2,275

    Every year, $1,000 from 2018

    YearValue of $1,000Year return
    2018$1,000
    2019$232-76.8%
    2020$574+147.4%
    2021$230-59.9%
    2022$355+54.0%
    2023$150-57.8%
    2024$83.20-44.5%
    2025$71.32-14.3%
    2026$162+127.5%

    Best and worst month-end to buy

    The best single month-end close to have bought STIM was 2024-09 ($0.76): $1,000 then is $4,132 today. The worst was 2018-08 ($33.05): $1,000 then is $95.01.

    FAQ

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

    A $1,000 investment in Neuronetics, Inc. (STIM) at the start of 2018 would be worth about $118 today, a total return of -88.2%. Dividends are reinvested in these figures.

    What were the best and worst years for STIM?

    Neuronetics, Inc. (STIM)'s strongest calendar year since 2018 was 2020, a +147.4% return — $1,000 held through that year became about $2,474 by year-end. Its weakest year was 2019, at -76.8%.

    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 STIM have grown?

    Investing $100 at the end of every month since 2018-06 would have grown to about $10,226 on $9,900 invested.

    Did STIM beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $2,836. STIM trailed the S&P 500 by +95.8% 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

    Neuronetics, Inc. (STIM) historical total-return data from 2018-06 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.