CLDX Collar Strategy

CLDX (Celldex Therapeutics, Inc.), in the Healthcare sector, (Biotechnology industry), listed on NASDAQ.

Celldex Therapeutics, Inc. is a biopharmaceutical company dedicated to developing antibody-based treatments, specifically monoclonal and bispecific antibodies, for a range of diseases. Their pipeline features therapeutic candidates aimed at both inflammatory conditions and various forms of cancer. Among their key clinical programs: CDX-0159 is a Phase I monoclonal antibody designed to bind to and inhibit the activity of the KIT receptor tyrosine kinase. CDX-1140 is a human agonist monoclonal antibody that targets CD40, a critical immune response activator found on immune cells such as dendritic cells, macrophages, and B cells, as well as on several cancer cell types. CDX-527 is a bispecific antibody that integrates Celldex's proprietary anti-PD-L1 and CD27 human antibodies. Its mechanism involves combining CD27 costimulation with blockade of the PD-L1/PD-1 pathway to prime and activate anti-tumor T-cell responses.

CLDX (Celldex Therapeutics, Inc.) trades in the Healthcare sector, specifically Biotechnology, with a market capitalization of approximately $2.35B, a beta of 0.93 versus the broader market, a 52-week range of 19.52-35.79, average daily share volume of 1.0M, a public-listing history dating back to 1986, approximately 186 full-time employees. These structural characteristics shape how CLDX stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.

A beta of 0.93 places CLDX roughly in line with broader market moves, so the strategy payoff and realized volatility track the index-equivalent baseline.

What is a collar on CLDX?

A collar pairs long stock with a protective out-of-the-money put financed by a short out-of-the-money call, capping both tails of the position around the current spot.

Current CLDX snapshot

As of June 30, 2026, spot at $37.27, ATM IV 55.90%, IV rank 7.82%, expected move 16.03%. The collar on CLDX below is built from the same end-of-day chain, with strikes snapped to listed contracts and premiums pulled from the bid/ask midpoint at a 17-day expiry.

Why this collar structure on CLDX specifically: IV regime affects collar pricing on both sides; compressed CLDX IV at 55.90% typically pushes the short call premium to roughly offset the long put cost, with a market-implied 1-standard-deviation move of approximately 16.03% (roughly $5.97 on the underlying). The 17-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated CLDX expiries trade a higher absolute premium for lower per-day decay. Position sizing on CLDX should anchor to the underlying notional of $37.27 per share and to the trader's directional view on CLDX stock.

CLDX collar setup

The CLDX collar below is built from the end-of-day chain, with each option leg priced at the bid/ask midpoint of its listed strike. With CLDX near $37.27, the first option leg uses a $39.00 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed CLDX chain at a 17-day expiry; the cross-strike IV skew is reflected directly in the per-leg values rather than approximated. Quantity sizing assumes one contract per option leg (or 100 CLDX shares for the stock leg in covered calls and collars).

ActionTypeStrike / BasisPremium (est)
Buy 100 sharesStock$37.27long
Sell 1Call$39.00$1.13
Buy 1Put$35.00$0.81

CLDX collar risk and reward

Net Premium / Debit
-$3,695.50
Max Profit (per contract)
$204.50
Max Loss (per contract)
-$195.50
Breakeven(s)
$36.96
Risk / Reward Ratio
1.046

Max profit roughly equals short-call strike minus cost basis plus net premium; max loss roughly equals cost basis minus long-put strike minus net premium. Breakeven shifts by the net premium.

CLDX collar payoff curve

Modeled P&L at expiration across a range of underlying prices for the collar on CLDX. Each row is one sampled price point from the computed payoff curve; the full curve uses 200 price points internally before being summarized into 10 rows here.

CLDX collar profit and loss curve at expiration with breakevens and current spot markedCLDX collar payoff at expiration-$100$0$100$200$10$20$30$40$50$60$70Underlying Price ($)P&L at Expiration ($)BE $36.96Spot $37.27
P&L at expiration across the modeled underlying-price range. Green shading marks profitable regions, red shading marks loss regions. Dotted purple verticals mark breakevens; the solid dark vertical marks current spot.
Underlying Price% From SpotP&L at Expiration
$0.01-100.0%-$195.50
$8.25-77.9%-$195.50
$16.49-55.8%-$195.50
$24.73-33.7%-$195.50
$32.97-11.5%-$195.50
$41.21+10.6%+$204.50
$49.45+32.7%+$204.50
$57.69+54.8%+$204.50
$65.93+76.9%+$204.50
$74.17+99.0%+$204.50

When traders use collar on CLDX

Collars on CLDX hedge an existing long CLDX stock position; the long put sets a floor while the short call finances it, often run as a near-zero-cost hedge during expected volatility windows.

CLDX thesis for this collar

The market-implied 1-standard-deviation range for CLDX extends from approximately $31.30 on the downside to $43.24 on the upside. A CLDX collar hedges an existing long CLDX position with a protective put while financing the put cost via a short call; when the premiums roughly offset, the collar acts as a near-zero-cost insurance band around the current spot. Current CLDX IV rank near 7.82% sits in the lower third of its 1-year distribution, where IV often re-expands toward the mean; this favors premium-buying structures and disadvantages premium-selling structures on CLDX at 55.90%. As a Healthcare name, CLDX options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to CLDX-specific events.

CLDX collar positions are structurally neutral (protective); the modeled P&L assumes European-style exercise at expiration and ignores early assignment, transaction costs, dividends paid before expiry on the stock leg (when present), and the bid-ask spread on the listed chain. CLDX positions also carry Healthcare sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move CLDX alongside the broader basket even when CLDX-specific fundamentals are unchanged. Always rebuild the position from current CLDX chain quotes before placing a trade.

Frequently asked questions

What is a collar on CLDX?
A collar on CLDX is the collar strategy applied to CLDX (stock). The strategy is structurally neutral (protective): A collar pairs long stock with a protective out-of-the-money put financed by a short out-of-the-money call, capping both tails of the position around the current spot. With CLDX stock trading near $37.27, the strikes shown on this page are snapped to the nearest listed CLDX chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
How are CLDX collar max profit and max loss calculated?
Max profit roughly equals short-call strike minus cost basis plus net premium; max loss roughly equals cost basis minus long-put strike minus net premium. Breakeven shifts by the net premium. For the CLDX collar priced from the end-of-day chain at a 30-day expiry (ATM IV 55.90%), the computed maximum profit is $204.50 per contract and the computed maximum loss is -$195.50 per contract. Live intraday quotes will differ as the chain moves through the trading session.
What is the breakeven for a CLDX collar?
The breakeven for the CLDX collar priced on this page is roughly $36.96 at expiration, derived from end-of-day chain premiums. Breakeven is the underlying price at which the strategy's P&L crosses zero ignoring transaction costs and assignment risk. The current CLDX market-implied 1-standard-deviation expected move is approximately 16.03%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
When should you consider a collar on CLDX?
Collars on CLDX hedge an existing long CLDX stock position; the long put sets a floor while the short call finances it, often run as a near-zero-cost hedge during expected volatility windows.
How does current CLDX implied volatility affect this collar?
CLDX ATM IV is at 55.90% with IV rank near 7.82%, which is on the low end of its 1-year range. Premium-buying structures (long call, long put, debit spreads) are relatively cheap in this regime; premium-selling structures collect less credit per unit risk.

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