What if you'd held CLDX?
A $1,000 investment in Celldex Therapeutics, Inc. (CLDX) at the month-end close of 1986-05 would be worth $51.48 at the close of 2026-08 — -94.9% total return, dividends reinvested. The same $1,000 in the S&P 500 would be worth $31,162.
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 1986
| Year | Value of $1,000 | Year return |
|---|---|---|
| 1986 | $1,000 | — |
| 1987 | $889 | -11.1% |
| 1988 | $593 | -33.3% |
| 1989 | $1,481 | +150.0% |
| 1990 | $870 | -41.3% |
| 1991 | $3,259 | +274.5% |
| 1992 | $2,185 | -33.0% |
| 1993 | $2,296 | +5.1% |
| 1994 | $741 | -67.7% |
| 1995 | $926 | +25.0% |
| 1996 | $481 | -48.0% |
| 1997 | $722 | +50.0% |
| 1998 | $519 | -28.2% |
| 1999 | $731 | +41.1% |
| 2000 | $2,037 | +178.5% |
| 2001 | $1,188 | -41.7% |
| 2002 | $335 | -71.8% |
| 2003 | $812 | +142.5% |
| 2004 | $596 | -26.6% |
| 2005 | $557 | -6.5% |
| 2006 | $397 | -28.7% |
| 2007 | $148 | -62.7% |
| 2008 | $196 | +32.0% |
| 2009 | $115 | -41.0% |
| 2010 | $102 | -11.8% |
| 2011 | $64.20 | -36.9% |
| 2012 | $166 | +158.1% |
| 2013 | $598 | +260.8% |
| 2014 | $451 | -24.6% |
| 2015 | $387 | -14.1% |
| 2016 | $87.41 | -77.4% |
| 2017 | $70.12 | -19.8% |
| 2018 | $4.94 | -93.0% |
| 2019 | $3.67 | -25.7% |
| 2020 | $28.84 | +685.7% |
| 2021 | $63.60 | +120.5% |
| 2022 | $73.37 | +15.3% |
| 2023 | $65.28 | -11.0% |
| 2024 | $41.60 | -36.3% |
| 2025 | $44.71 | +7.5% |
| 2026 | $68.64 | +53.5% |
Best and worst month-end to buy
The best single month-end close to have bought CLDX was 2020-03 ($1.66): $1,000 then is $25,120 today. The worst was 1992-01 ($2,340): $1,000 then is $17.82.
FAQ
What would $1,000 in CLDX be worth today?
A $1,000 investment in Celldex Therapeutics, Inc. (CLDX) at the start of 1986 would be worth about $51.48 today, a total return of -94.9%. Dividends are reinvested in these figures.
What were the best and worst years for CLDX?
Celldex Therapeutics, Inc. (CLDX)'s strongest calendar year since 1986 was 2020, a +685.7% return — $1,000 held through that year became about $7,857 by year-end. Its weakest year was 2018, at -93.0%.
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 CLDX have grown?
Investing $100 at the end of every month since 1986-05 would have grown to about $53,193 on $48,400 invested.
Did CLDX beat the S&P 500?
Over the same period, $1,000 in the S&P 500 index would be worth $31,162. CLDX trailed the S&P 500 by +99.8% 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
Celldex Therapeutics, Inc. (CLDX) historical total-return data from 1986-05 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.