What if you'd held QDEL?
A $1,000 investment in QuidelOrtho Corporation (QDEL) at the month-end close of 1991-02 would be worth $2,400 at the close of 2026-08 — +140.0% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $20,999.
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 1991
| Year | Value of $1,000 | Year return |
|---|---|---|
| 1991 | $1,000 | — |
| 1992 | $1,095 | +9.5% |
| 1993 | $1,125 | +2.7% |
| 1994 | $610 | -45.8% |
| 1995 | $1,783 | +192.2% |
| 1996 | $1,125 | -36.9% |
| 1997 | $908 | -19.3% |
| 1998 | $610 | -32.8% |
| 1999 | $1,720 | +182.0% |
| 2000 | $1,258 | -26.9% |
| 2001 | $1,923 | +52.9% |
| 2002 | $865 | -55.0% |
| 2003 | $2,693 | +211.3% |
| 2004 | $1,270 | -52.8% |
| 2005 | $2,690 | +111.8% |
| 2006 | $3,405 | +26.6% |
| 2007 | $4,868 | +43.0% |
| 2008 | $3,268 | -32.9% |
| 2009 | $3,445 | +5.4% |
| 2010 | $3,613 | +4.9% |
| 2011 | $3,783 | +4.7% |
| 2012 | $4,668 | +23.4% |
| 2013 | $7,723 | +65.5% |
| 2014 | $7,230 | -6.4% |
| 2015 | $5,300 | -26.7% |
| 2016 | $5,355 | +1.0% |
| 2017 | $10,838 | +102.4% |
| 2018 | $12,205 | +12.6% |
| 2019 | $18,758 | +53.7% |
| 2020 | $44,913 | +139.4% |
| 2021 | $33,748 | -24.9% |
| 2022 | $21,418 | -36.5% |
| 2023 | $18,425 | -14.0% |
| 2024 | $11,138 | -39.6% |
| 2025 | $7,140 | -35.9% |
| 2026 | $3,450 | -51.7% |
Best and worst month-end to buy
The best single month-end close to have bought QDEL was 1998-11 ($2.00): $1,000 then is $6,900 today. The worst was 2020-07 ($282): $1,000 then is $48.85.
FAQ
What would $1,000 in QDEL be worth today?
A $1,000 investment in QuidelOrtho Corporation (QDEL) at the start of 1991 would be worth about $2,400 today, a total return of +140.0%. Dividends are reinvested in these figures.
What were the best and worst years for QDEL?
QuidelOrtho Corporation (QDEL)'s strongest calendar year since 1991 was 2003, a +211.3% return — $1,000 held through that year became about $3,113 by year-end. Its weakest year was 2002, at -55.0%.
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 QDEL have grown?
Investing $100 at the end of every month since 1991-02 would have grown to about $70,795 on $42,700 invested.
Did QDEL beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $20,999. QDEL trailed the S&P 500 by +88.6% 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
QuidelOrtho Corporation (QDEL) historical total-return data from 1991-02 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.
What if you'd held…
Data: adjusted close prices via Yahoo Finance. As of 2026-08. Not financial advice.