How much would $1,000 invested in CLDX be worth today?

$1,000 invested in CLDX on October 17, 2016 would be worth $545 on October 16, 2026, with dividends reinvested — −5.9% a year compounded (CAGR).

How far back does the CLDX calculator go?

CLDX data begins May 15, 1986, with a close every session. Pick any start and end date in that span — 40 years, 5 months of history.

Does this include dividends?

Yes. The default "dividends reinvested" view uses split- and dividend-adjusted closing prices — a standard total-return approximation that excludes taxes and fees. A price-only view (split-adjusted, no dividends) is also available.

If You Invested $1,000 in Celldex Therapeutics (CLDX): What It Would Be Worth Today

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CLDX

$27.53-4.84%

as of close, Oct 16, 2026

☾ AH $27.53 -4.84%

Celldex Therapeutics Inc.Stock · HealthcareRussell 2000 0.09%Nasdaq Composite 0.008%Russell 3000 0.004%US Stock Market 0.004%

PeersMRNALLYMDTUNHJNJTMO

Your investment#

How much

All at once, on the start date

Pick start & end dates10 years

Start

Key dates

Start at a well-known dateRecentMarket topsMarket bottomsEvents

Bought at that day's close

End

Key dates

End at a well-known dateMarket topsMarket bottomsEvents

Latest close, Oct 16, 2026

Or drag the slider to set start and end dates

1986 to today, log scale

2008 crisisCovidDot-com bust1987 crash

199019952000200520102015Oct 2016 – Today

Options

Result#

$1,000Oct 17, 2016$545Oct 16, 20260.54×your money

$1,000 invested in CLDX on October 17, 2016 was worth $545 on October 16, 2026, with dividends reinvested.

That’s −5.9% a year compounded (CAGR) over 10 years: 0.54 times your money.

Over the same dates the same $1,000 would be worth $4,208 in the S&P 500 and $6,511 in the Nasdaq-100: CLDX trailed both the S&P 500 and the Nasdaq-100.

Price only$545if dividends were spent

Biggest fall−97.9%Nov 14, 2016 to Mar 20, 2020

At a flat 5% a year$1,629a savings account's rate

Loss$455on $1,000 put in

How this period ranks#

Better than 67% of all 366 periods of 10 years since 1986.

Your dates

−90%840%

Worst: −33.1% a year, Mar 2010 to Mar 2020Best: 14.2% a year, Sep 1990 to Sep 2000

One scale for every length, so longer periods bunch up. Point at a bar.

Growth of $1,000 in CLDX, October 17, 2016 to October 16, 2026#

Your $1,000$Your buySame plan in the S&P 500The highA lowLog scale: equal steps are equal percentage moves

Lowest value$31 · Mar 2020Highest value$1,460 · Nov 2016$

$30$100$300$1,000$3,000$545

20182020202220242026

How far CLDX was below its previous high. The biggest fall: −97.9% from Nov 14, 2016 to Mar 20, 2020, not back to the high by the end date.

−97.9% from its high−17.1% from its high

high−98%

Your one buy. $1,000 on October 17, 2016, worth $545 on October 16, 2026. Pick Monthly or Yearly to see a plan's buys.

paid0.54×

What $1,000 would be worth on October 16, 2026, by start date#

Each point is the same amount invested that day and held to October 16, 2026, dividends reinvested. Above the line it made money.

Your start

$10$30$100$300$1,000$3,000$10k

19901995200020052010201520202025

$1,000 invested in CLDX, by year#

Started on each year's first close and held to Oct 16, 2026, dividends reinvested.

Started	Worth Oct 16, 2026	Multiple	A year (CAGR)	Same in the Nasdaq-100
2017	$508	0.51×	−6.7%	$6,344
2018	$629	0.63×	−5.1%	$4,742
2019	$7,341	7.3×	29.2%	$4,812
2020	$12,236	12.2×	44.6%	$3,420
2021	$1,441	1.4×	6.5%	$2,373
2022	$703	0.70×	−7.1%	$1,818
2023	$634	0.63×	−11.3%	$2,741
2024	$681	0.68×	−12.9%	$1,789
2025	$1,067	1.1×	3.7%	$1,403
2026	$1,019	1.0×	—	$1,162

Methodology#

A buy is made at the start date's close, or the next session's when the market was closed that day, and valued at the end date's close; a monthly or yearly plan buys on the same day of each month or year. "Dividends reinvested" uses split- and dividend-adjusted closes (a standard total-return approximation; taxes and fees excluded). "Price-only" uses split-adjusted closes. CLDX data begins May 15, 1986; values as of October 16, 2026 and refresh daily. The ranking compares month-end to month-end periods. Past performance does not predict future returns; not investment advice.

See the live CLDX chart and fundamentals on the CLDX quote page or the S&P 500 return calculator.

FAQ#

How much would $1,000 invested in CLDX be worth today?: $1,000 invested in CLDX on October 17, 2016 would be worth $545 on October 16, 2026, with dividends reinvested — −5.9% a year compounded (CAGR).
How far back does the CLDX calculator go?: CLDX data begins May 15, 1986, with a close every session. Pick any start and end date in that span — 40 years, 5 months of history.
Does this include dividends?: Yes. The default "dividends reinvested" view uses split- and dividend-adjusted closing prices — a standard total-return approximation that excludes taxes and fees. A price-only view (split-adjusted, no dividends) is also available.

CLDX return calculator