What if you'd held BIO-B?
A $1,000 investment in Bio-Rad Laboratories, Inc. Class B (BIO-B) at the month-end close of 1999-09 would be worth $25,666 at the close of 2026-08 — +2466.6% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $6,009.
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 2026-08, dividends included.
Every year, $1,000 from 1999
| Year | Value of $1,000 | Year return |
|---|---|---|
| 1999 | $1,000 | — |
| 2000 | $1,362 | +36.2% |
| 2001 | $2,768 | +103.2% |
| 2002 | $3,676 | +32.8% |
| 2003 | $5,017 | +36.5% |
| 2004 | $4,969 | -1.0% |
| 2005 | $5,623 | +13.2% |
| 2006 | $7,215 | +28.3% |
| 2007 | $9,085 | +25.9% |
| 2008 | $6,030 | -33.6% |
| 2009 | $8,465 | +40.4% |
| 2010 | $9,046 | +6.9% |
| 2011 | $8,245 | -8.9% |
| 2012 | $9,003 | +9.2% |
| 2013 | $10,702 | +18.9% |
| 2014 | $10,418 | -2.7% |
| 2015 | $11,910 | +14.3% |
| 2016 | $15,843 | +33.0% |
| 2017 | $20,610 | +30.1% |
| 2018 | $19,896 | -3.5% |
| 2019 | $31,972 | +60.7% |
| 2020 | $49,667 | +55.3% |
| 2021 | $62,535 | +25.9% |
| 2022 | $35,005 | -44.0% |
| 2023 | $27,738 | -20.8% |
| 2024 | $28,166 | +1.5% |
| 2025 | $26,877 | -4.6% |
| 2026 | $29,152 | +8.5% |
Best and worst month-end to buy
The best single month-end close to have bought BIO-B was 2000-06 ($10.75): $1,000 then is $31,349 today. The worst was 2021-08 ($763): $1,000 then is $442.
FAQ
What would $1,000 in BIO-B be worth today?
A $1,000 investment in Bio-Rad Laboratories, Inc. Class B (BIO-B) at the start of 1999 would be worth about $25,666 today, a total return of +2466.6%. Dividends are reinvested in these figures.
What were the best and worst years for BIO-B?
Bio-Rad Laboratories, Inc. Class B (BIO-B)'s strongest calendar year since 1999 was 2001, a +103.2% return — $1,000 held through that year became about $2,032 by year-end. Its weakest year was 2022, at -44.0%.
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 BIO-B have grown?
Investing $100 at the end of every month since 1999-09 would have grown to about $149,691 on $32,400 invested.
Did BIO-B beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $6,009. BIO-B beat the S&P 500 by +327.1% 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
Bio-Rad Laboratories, Inc. Class B (BIO-B) historical total-return data from 1999-09 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.
What if you'd held…
Data: adjusted close prices via Yahoo Finance. As of 2026-08. Not financial advice.