CABA Strangle Strategy

CABA (Cabaletta Bio, Inc.), in the Healthcare sector, (Biotechnology industry), listed on NASDAQ.

Cabaletta Bio, Inc., a clinical-stage biotechnology company, focuses on the discovery and development of engineered T cell therapies for patients with B cell-mediated autoimmune diseases. Its proprietary technology utilizes chimeric autoantibody receptor (CAAR) T cells that are designed to selectively bind and eliminate B cells, which produce disease-causing autoantibodies or pathogenic B cells. The company's lead product candidate is DSG3-CAART, which is in Phase I clinical trial for the treatment of mucosal pemphigus vulgaris, an autoimmune blistering skin disease, and Hemophilia A with Factor VIII alloantibodies. Its product candidate pipeline also includes MuSK-CAART, a preclinical stage product to treat a subset of patients with myasthenia gravis; FVIII-CAART, a discovery stage product to treat a subset of patients with Hemophilia A; and DSG3/1-CAART, a discovery stage product for the treatment of mucocutaneous pemphigus vulgaris. It has a collaboration with the University of Pennsylvania; and research agreement with The Regents of the University of California. The company was formerly known as Tycho Therapeutics, Inc. and changed its name to Cabaletta Bio, Inc. in August 2018.

CABA (Cabaletta Bio, Inc.) trades in the Healthcare sector, specifically Biotechnology, with a market capitalization of approximately $345.6M, a beta of 3.17 versus the broader market, a 52-week range of 1.26-4.23, average daily share volume of 3.1M, a public-listing history dating back to 2019, approximately 161 full-time employees. These structural characteristics shape how CABA stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.

A beta of 3.17 indicates CABA 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 strangle on CABA?

A long strangle buys an OTM call and an OTM put at offset strikes, cheaper than a straddle but requiring a larger underlying move to profit since both wings start out-of-the-money.

Current CABA snapshot

As of May 15, 2026, spot at $3.33, ATM IV 85.80%, IV rank 8.88%, expected move 24.60%. The strangle on CABA 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 strangle structure on CABA specifically: CABA IV at 85.80% is on the cheap side of its 1-year range, which favors premium-buying structures like a CABA strangle, with a market-implied 1-standard-deviation move of approximately 24.60% (roughly $0.82 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 CABA expiries trade a higher absolute premium for lower per-day decay. Position sizing on CABA should anchor to the underlying notional of $3.33 per share and to the trader's directional view on CABA stock.

CABA strangle setup

The CABA strangle below is built from the end-of-day chain, with each option leg priced at the bid/ask midpoint of its listed strike. With CABA near $3.33, the first option leg uses a $3.50 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed CABA 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 CABA shares for the stock leg in covered calls and collars).

ActionTypeStrike / BasisPremium (est)
Buy 1Call$3.50N/A
Buy 1Put$3.16N/A

CABA strangle 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

Upside max profit is unbounded; downside max profit is bounded at the put strike minus the combined debit (reached at zero). Max loss equals the combined debit times 100 (reached anywhere between the two OTM strikes). Two breakevens at call-strike plus debit and put-strike minus debit.

CABA strangle payoff curve

Modeled P&L at expiration across a range of underlying prices for the strangle on CABA. 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 strangle on CABA

Strangles on CABA are the cheaper cousin of the straddle - traders use them when they want a large directional move but are willing to give up the inner-strike sensitivity in exchange for a lower up-front debit on the CABA chain.

CABA thesis for this strangle

The market-implied 1-standard-deviation range for CABA extends from approximately $2.51 on the downside to $4.15 on the upside. A CABA long strangle is the OTM cousin of the straddle: lower up-front cost but the underlying has to travel further past either OTM strike before the position turns profitable at expiration. Current CABA IV rank near 8.88% 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 CABA at 85.80%. As a Healthcare name, CABA options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to CABA-specific events.

CABA strangle positions are structurally neutral / high-volatility (long premium, OTM); 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. CABA positions also carry Healthcare sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move CABA alongside the broader basket even when CABA-specific fundamentals are unchanged. Always rebuild the position from current CABA chain quotes before placing a trade.

Frequently asked questions

What is a strangle on CABA?
A strangle on CABA is the strangle strategy applied to CABA (stock). The strategy is structurally neutral / high-volatility (long premium, OTM): A long strangle buys an OTM call and an OTM put at offset strikes, cheaper than a straddle but requiring a larger underlying move to profit since both wings start out-of-the-money. With CABA stock trading near $3.33, the strikes shown on this page are snapped to the nearest listed CABA chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
How are CABA strangle max profit and max loss calculated?
Upside max profit is unbounded; downside max profit is bounded at the put strike minus the combined debit (reached at zero). Max loss equals the combined debit times 100 (reached anywhere between the two OTM strikes). Two breakevens at call-strike plus debit and put-strike minus debit. For the CABA strangle priced from the end-of-day chain at a 30-day expiry (ATM IV 85.80%), 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 CABA strangle?
The breakeven for the CABA strangle 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 CABA market-implied 1-standard-deviation expected move is approximately 24.60%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
When should you consider a strangle on CABA?
Strangles on CABA are the cheaper cousin of the straddle - traders use them when they want a large directional move but are willing to give up the inner-strike sensitivity in exchange for a lower up-front debit on the CABA chain.
How does current CABA implied volatility affect this strangle?
CABA ATM IV is at 85.80% with IV rank near 8.88%, 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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