Celldex Therapeutics (CLDX) Options Chain

NASDAQ: CLDXHealth CareBiotechnology: In Vitro & In Vivo Diagnostic SubstancesUSD

29.89+0.59 (+2.01%)

At close: Oct 9, 4:00 PM ET · Delayed 15 min

Expiration date

Expiration: May 21, 2027
Days to expiration: 223
Share price: $29.89
Put/call ratio (OI): 1.55
ATM implied volatility: 56.0%
Expected move: ±$13.07
Open interest (C / P): 11 / 17

CLDX options summary

The CLDX options chain for the May 21, 2027 expiration lists 2 call and 6 put contracts, with 223 days until expiration. Open interest stands at 11 calls and 17 puts, a put/call ratio of 1.55, which is more bearish, with puts outnumbering calls. At-the-money implied volatility near the $30.00 strike is 56.0%, which implies the market expects a move of about ±$13.07 (43.7%) in Celldex Therapeutics stock by expiration.

The most open interest sits at the $36.00 call (10 contracts) and the $30.00 put (11 contracts).

Summary generated from market data by MetaCap's automated system. Methodology

CLDX options chain · May 21, 2027

CLDX calls and puts by strike price. Shaded cells are in the money.
Calls							Puts
OI	Vol	IV	Last	Bid	Ask	Strike	Bid	Ask	Last	IV	Vol	OI
—	—	—	—	—	—	20.00	0.80	2.60	1.75	68.7%	1	2
CLDX $29.89
—	—	—	—	—	—	30.00	3.00	7.50	4.95	56.0%	6	11
—	—	—	—	—	—	31.00	3.50	8.20	4.60	55.9%	—	1
1	—	61.8%	5.20	1.55	6.40	35.00	6.10	10.90	7.48	55.6%	—	1
10	—	61.8%	8.40	1.40	6.00	36.00	—	—	—	—	—	—
—	—	—	—	—	—	37.00	7.60	12.00	7.50	53.5%	—	1
—	—	—	—	—	—	47.00	15.80	20.20	15.95	50.0%	—	1

In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.

Frequently asked questions

What is the CLDX put/call ratio?

For the May 21, 2027 expiration, the CLDX put/call ratio based on open interest is 1.55 (17 puts vs 11 calls). A ratio above 1 means more puts than calls.

What is CLDX's implied volatility?

At-the-money implied volatility for CLDX options expiring May 21, 2027 is about 56.0%, an annualized estimate of how much the market expects Celldex Therapeutics stock to move.

How many CLDX option expiration dates are there?

CLDX has 8 listed expiration dates, from Oct 16, 2026 to Dec 17, 2027.

What does "in the money" mean?

A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.