CTMX Cash-Secured Put Strategy

CTMX (CytomX Therapeutics, Inc.), in the Healthcare sector, (Biotechnology industry), listed on NASDAQ.

CytomX Therapeutics, Inc. operates as an oncology-focused biopharmaceutical company in the United States. The company develops antibody therapeutics based on its Probody technology platform for the treatment of cancer. The company's product candidates include CX-2009, an antibody drug conjugates (ADC) against CD166, which is in Phase II clinical trials for the treatment of breast cancer; CX-2029 that is in Phase II clinical trials for the treatment of squamous non-small cell lung cancer, head and neck squamous cell carcinoma, esophageal and gastro-esophageal junction cancers, and diffuse large B-cell lymphoma; BMS-986249, a CTLA-4 Probody therapeutic drug, which is in Phase I/II clinical trials for the treatment of metastatic melanoma; and BMS-986288, an anti-CTLA-4 Probody drug, which is in Phase I clinical trials for the treatment of solid tumors. It also develops CX-2043, a conditionally activated ADC targeting the epithelial cell adhesion molecule, as well as CX-904, a conditionally activated epidermal growth factor receptor for the treatment of solid tumor. The company has strategic collaborations with AbbVie Ireland Unlimited Company, Amgen, Inc., Bristol-Myers Squibb Company, ImmunoGen, Inc., Pfizer Inc., and Astellas Pharma Inc. to develop Probody therapeutics. CytomX Therapeutics, Inc. was founded in 2008 and is headquartered in South San Francisco, California.

CTMX (CytomX Therapeutics, Inc.) trades in the Healthcare sector, specifically Biotechnology, with a market capitalization of approximately $609.5M, a beta of 2.17 versus the broader market, a 52-week range of 1.72-8.21, average daily share volume of 6.9M, a public-listing history dating back to 2015, approximately 119 full-time employees. These structural characteristics shape how CTMX stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.

A beta of 2.17 indicates CTMX has historically moved more than the broader market, amplifying both the directional payoff and the realized volatility relative to an index-equivalent position.

What is a cash-secured put on CTMX?

A cash-secured put sells an out-of-the-money put while holding cash equal to the strike-times-100 obligation, keeping the premium when the underlying stays above the strike.

Current CTMX snapshot

As of May 15, 2026, spot at $3.63, ATM IV 66.10%, IV rank 13.21%, expected move 18.95%. The cash-secured put on CTMX 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 34-day expiry.

Why this cash-secured put structure on CTMX specifically: CTMX IV at 66.10% is on the cheap side of its 1-year range, which means a premium-selling CTMX cash-secured put collects less credit per unit of strike-width risk, with a market-implied 1-standard-deviation move of approximately 18.95% (roughly $0.69 on the underlying). The 34-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated CTMX expiries trade a higher absolute premium for lower per-day decay. Position sizing on CTMX should anchor to the underlying notional of $3.63 per share and to the trader's directional view on CTMX stock.

CTMX cash-secured put setup

The CTMX cash-secured put below is built from the end-of-day chain, with each option leg priced at the bid/ask midpoint of its listed strike. With CTMX near $3.63, the first option leg uses a $3.45 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed CTMX chain at a 34-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 CTMX shares for the stock leg in covered calls and collars).

ActionTypeStrike / BasisPremium (est)
Sell 1Put$3.45N/A

CTMX cash-secured put risk and reward

Net Premium / Debit
N/A
Max Profit (per contract)
Unbounded
Max Loss (per contract)
Unbounded
Breakeven(s)
None on modeled curve
Risk / Reward Ratio
N/A

Max profit equals premium times 100; max loss equals strike minus premium times 100 (at zero, assuming assignment). Breakeven is strike minus premium.

CTMX cash-secured put payoff curve

Modeled P&L at expiration across a range of underlying prices for the cash-secured put on CTMX. 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.

When traders use cash-secured put on CTMX

Cash-secured puts on CTMX earn premium while a trader waits to acquire CTMX stock at a target strike below the current quote; most attractive when IV is rich and the trader is comfortable owning CTMX.

CTMX thesis for this cash-secured put

The market-implied 1-standard-deviation range for CTMX extends from approximately $2.94 on the downside to $4.32 on the upside. A CTMX cash-secured put lets a trader earn premium while waiting to acquire CTMX at the strike price; the strategy is most attractive when the trader is comfortable holding the underlying at that level and IV is rich enough to compensate for the assignment risk. Current CTMX IV rank near 13.21% 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 CTMX at 66.10%. As a Healthcare name, CTMX options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to CTMX-specific events.

CTMX cash-secured put positions are structurally neutral to slightly bullish; 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. CTMX positions also carry Healthcare sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move CTMX alongside the broader basket even when CTMX-specific fundamentals are unchanged. Short-premium structures like a cash-secured put on CTMX carry tail risk when realized volatility exceeds the implied move; review historical CTMX earnings reactions and macro stress periods before sizing. Always rebuild the position from current CTMX chain quotes before placing a trade.

Frequently asked questions

What is a cash-secured put on CTMX?
A cash-secured put on CTMX is the cash-secured put strategy applied to CTMX (stock). The strategy is structurally neutral to slightly bullish: A cash-secured put sells an out-of-the-money put while holding cash equal to the strike-times-100 obligation, keeping the premium when the underlying stays above the strike. With CTMX stock trading near $3.63, the strikes shown on this page are snapped to the nearest listed CTMX chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
How are CTMX cash-secured put max profit and max loss calculated?
Max profit equals premium times 100; max loss equals strike minus premium times 100 (at zero, assuming assignment). Breakeven is strike minus premium. For the CTMX cash-secured put priced from the end-of-day chain at a 30-day expiry (ATM IV 66.10%), the computed maximum profit is unbounded per contract and the computed maximum loss is unbounded per contract. Live intraday quotes will differ as the chain moves through the trading session.
What is the breakeven for a CTMX cash-secured put?
The breakeven for the CTMX cash-secured put priced on this page is no defined breakeven on the modeled curve 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 CTMX market-implied 1-standard-deviation expected move is approximately 18.95%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
When should you consider a cash-secured put on CTMX?
Cash-secured puts on CTMX earn premium while a trader waits to acquire CTMX stock at a target strike below the current quote; most attractive when IV is rich and the trader is comfortable owning CTMX.
How does current CTMX implied volatility affect this cash-secured put?
CTMX ATM IV is at 66.10% with IV rank near 13.21%, 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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