Wall Street RegretsThe regret calculator.

What if you'd held EBS?

A $1,000 investment in Emergent BioSolutions Inc. (EBS) at the month-end close of 2006-11 would be worth $466 at the close of 2026-08 — -53.4% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $5,503.

$1,000 since 2006$466Total return-53.4%Multiple0.47×CAGR-3.8%

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$466Gain+$-534 (-53.4%)Multiple0.5×CAGR-3.8%

    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.

    2006$4662007$4382008$9662009$1872010$3602011$2082012$2902013$3052014$2132015$1802016$1222017$1492018$1052019$82.492020$90.642021$54.582022$1122023$4142024$2,0382025$5122026$396

    Every year, $1,000 from 2006

    YearValue of $1,000Year return
    2006$1,000
    2007$453-54.7%
    2008$2,340+416.0%
    2009$1,218-48.0%
    2010$2,102+72.6%
    2011$1,509-28.2%
    2012$1,437-4.8%
    2013$2,060+43.3%
    2014$2,440+18.4%
    2015$3,585+46.9%
    2016$2,943-17.9%
    2017$4,164+41.5%
    2018$5,312+27.6%
    2019$4,834-9.0%
    2020$8,029+66.1%
    2021$3,895-51.5%
    2022$1,058-72.8%
    2023$215-79.7%
    2024$857+298.3%
    2025$1,108+29.3%
    2026$438-60.4%

    Best and worst month-end to buy

    The best single month-end close to have bought EBS was 2024-01 ($1.67): $1,000 then is $2,928 today. The worst was 2020-08 ($114): $1,000 then is $42.88.

    FAQ

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

    A $1,000 investment in Emergent BioSolutions Inc. (EBS) at the start of 2006 would be worth about $466 today, a total return of -53.4%. Dividends are reinvested in these figures.

    What were the best and worst years for EBS?

    Emergent BioSolutions Inc. (EBS)'s strongest calendar year since 2006 was 2008, a +416.0% return — $1,000 held through that year became about $5,160 by year-end. Its weakest year was 2023, at -79.7%.

    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 EBS have grown?

    Investing $100 at the end of every month since 2006-11 would have grown to about $8,358 on $23,800 invested.

    Did EBS beat the S&P 500?

    Over the same period, $1,000 in the S&P 500 index would be worth $5,503. EBS trailed the S&P 500 by +91.5% 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

    Emergent BioSolutions Inc. (EBS) historical total-return data from 2006-11 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.