Wall Street RegretsThe regret calculator.

What if you'd held PRTS?

A $1,000 investment in CarParts.com, Inc. (PRTS) at the month-end close of 2007-02 would be worth $53.52 at the close of 2026-08 — -94.6% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $5,479.

$1,000 since 2007$53.52Total return-94.6%Multiple0.05×CAGR-13.9%

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$53.52Gain+$-946 (-94.6%)Multiple0.1×CAGR-13.9%

    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.

    2007$53.522008$76.822009$4482010$1202011$74.172012$1432013$3402014$2512015$2662016$2112017$1772018$2472019$6852020$2832021$50.282022$55.632023$99.522024$1972025$5772026$1,246

    Every year, $1,000 from 2007

    YearValue of $1,000Year return
    2007$1,000
    2008$171-82.9%
    2009$641+274.1%
    2010$1,036+61.5%
    2011$539-48.0%
    2012$226-58.1%
    2013$306+35.5%
    2014$289-5.6%
    2015$364+26.1%
    2016$434+19.3%
    2017$311-28.4%
    2018$112-63.9%
    2019$271+141.8%
    2020$1,528+463.2%
    2021$1,381-9.6%
    2022$772-44.1%
    2023$390-49.5%
    2024$133-65.8%
    2025$61.65-53.7%
    2026$76.82+24.6%

    Best and worst month-end to buy

    The best single month-end close to have bought PRTS was 2025-12 ($5.00): $1,000 then is $1,246 today. The worst was 2021-06 ($204): $1,000 then is $30.60.

    FAQ

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

    A $1,000 investment in CarParts.com, Inc. (PRTS) at the start of 2007 would be worth about $53.52 today, a total return of -94.6%. Dividends are reinvested in these figures.

    What were the best and worst years for PRTS?

    CarParts.com, Inc. (PRTS)'s strongest calendar year since 2007 was 2020, a +463.2% return — $1,000 held through that year became about $5,632 by year-end. Its weakest year was 2008, at -82.9%.

    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 PRTS have grown?

    Investing $100 at the end of every month since 2007-02 would have grown to about $6,680 on $23,500 invested.

    Did PRTS beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $5,479. PRTS trailed the S&P 500 by +99.0% 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

    CarParts.com, Inc. (PRTS) historical total-return data from 2007-02 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.