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 $592 at the close of 2026-09 — -40.8% total return, dividends reinvested. The same $1,000 in the S&P 500, dividends reinvested, would be worth $8,024.
Your scenario
Result
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.
Every year, $1,000 from 2006
| Year | Value of $1,000 | Year 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 | $556 | -49.8% |
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 $3,719 today. The worst was 2020-08 ($114): $1,000 then is $54.45.
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 $592 today, a total return of -40.8%. 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 $10,689 on $23,900 invested.
Did EBS 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 $8,024. EBS trailed the S&P 500 by +92.6% 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 2026-09, 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.
What if you'd held…
Data: adjusted close prices via EODHD and Yahoo Finance. As of 2026-09-04. Not financial advice.