Wall Street RegretsThe regret calculator.

What if you'd held ENTG?

A $1,000 investment in Entegris, Inc. (ENTG) at the month-end close of 2000-07 would be worth $14,205 at the close of 2026-09 — +1320.5% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $8,762.

$1,000 since 2000$14,205Total return+1320.5%Multiple14.2×CAGR+10.7%

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$14,205Gain+$13,205 (+1320.5%)Multiple14.2×CAGR+10.7%

    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.

    2000$14,2052001$18,2672002$12,4742003$13,2732004$10,6402005$13,7412006$14,5142007$12,6352008$15,8422009$62,4162010$25,8912011$18,3032012$15,6602013$14,8932014$11,7962015$10,3492016$10,3032017$7,6382018$4,4802019$4,8462020$2,6802021$1,3892022$9612023$2,0222024$1,1022025$1,3282026$1,555

    Every year, $1,000 from 2000

    YearValue of $1,000Year return
    2000$1,000
    2001$1,464+46.4%
    2002$1,376-6.0%
    2003$1,717+24.7%
    2004$1,329-22.6%
    2005$1,259-5.3%
    2006$1,446+14.9%
    2007$1,153-20.2%
    2008$293-74.6%
    2009$706+141.1%
    2010$998+41.5%
    2011$1,166+16.9%
    2012$1,227+5.2%
    2013$1,549+26.3%
    2014$1,765+14.0%
    2015$1,773+0.5%
    2016$2,392+34.9%
    2017$4,077+70.5%
    2018$3,770-7.5%
    2019$6,817+80.8%
    2020$13,147+92.9%
    2021$19,010+44.6%
    2022$9,032-52.5%
    2023$16,578+83.5%
    2024$13,751-17.1%
    2025$11,747-14.6%
    2026$18,267+55.5%

    Best and worst month-end to buy

    The best single month-end close to have bought ENTG was 2009-02 ($0.58): $1,000 then is $224,185 today. The worst was 2026-06 ($180): $1,000 then is $727.

    FAQ

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

    A $1,000 investment in Entegris, Inc. (ENTG) at the start of 2000 would be worth about $14,205 today, a total return of +1320.5%. Dividends are reinvested in these figures.

    What were the best and worst years for ENTG?

    Entegris, Inc. (ENTG)'s strongest calendar year since 2000 was 2009, a +141.1% return — $1,000 held through that year became about $2,411 by year-end. Its weakest year was 2008, at -74.6%.

    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 ENTG have grown?

    Investing $100 at the end of every month since 2000-07 would have grown to about $398,086 on $31,500 invested.

    Did ENTG 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 $8,762. ENTG beat the S&P 500 by +62.1% 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

    Entegris, Inc. (ENTG) historical total-return data from 2000-07 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 2026-09-03. Not financial advice.