PLX Bull Call Spread Strategy
PLX (Protalix BioTherapeutics, Inc.), in the Healthcare sector, (Biotechnology industry), listed on AMEX.
Protalix BioTherapeutics, Inc., a biopharmaceutical company, engages in the development, production, and commercialization of recombinant therapeutic proteins based on the ProCellEx plant cell-based protein expression system. The company provides Elelyso for the treatment of Gaucher disease; and Elfabrio for the treatment of adult patients with a confirmed diagnosis of Fabry disease. It is also developing PRX-115, a plant cell expressed recombinant PEGylated Uricase, which is in Phase 2 trial for the treatment of gout; and PRX-119, a plant cell expressed PEGylated recombinant human DNase I product candidate for the treatment of neutrophil extracellular traps diseases. The company has agreements and partnerships with Pfizer; Fundação Oswaldo Cruz; and Chiesi Farmaceutici S.p.A. Protalix BioTherapeutics, Inc. has strategic partnership with Secarna Pharmaceuticals GmbH & Co KG. The company is headquartered in Hackensack.
PLX (Protalix BioTherapeutics, Inc.) trades in the Healthcare sector, specifically Biotechnology, with a market capitalization of approximately $211.1M, a trailing P/E of 11.06, a beta of 0.01 versus the broader market, a 52-week range of 1.46-3.19, average daily share volume of 697K, a public-listing history dating back to 1998, approximately 226 full-time employees. These structural characteristics shape how PLX stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.
A beta of 0.01 indicates PLX has historically moved less than the broader market, dampening realized volatility and producing tighter expected-move bands per unit of dollar exposure. The trailing P/E of 11.06 is on the value side, where IV often compresses outside event windows because forward growth expectations are already discounted into the share price.
What is a bull call spread on PLX?
A bull call spread buys an at-the-money call and sells an out-of-the-money call at a higher strike for defined risk and defined reward bounded by the strike width.
PLX snapshot
As of August 14, 2026, spot at $2.24, ATM IV 34.80%, IV rank 6.28%, expected move 9.98%. The bull call spread on PLX below is built from the end-of-day chain, with strikes snapped to listed contracts and premiums pulled from the bid/ask midpoint at a 35-day expiry.
Why this bull call spread structure on PLX specifically: PLX IV at 34.80% is on the cheap side of its 1-year range, which favors premium-buying structures like a PLX bull call spread, with a market-implied 1-standard-deviation move of approximately 9.98% (roughly $0.22 on the underlying). The 35-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated PLX expiries trade a higher absolute premium for lower per-day decay. Position sizing on PLX should anchor to the underlying notional of $2.24 per share and to the trader's directional view on PLX stock.
PLX bull call spread setup
The PLX bull call spread below is built from the end-of-day chain, with each option leg priced at the bid/ask midpoint of its listed strike. With PLX at $2.24 on that close, the first option leg uses a $2.24 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed PLX chain at a 35-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 PLX shares for the stock leg in covered calls and collars).
| Action | Type | Strike / Basis | Premium (est) |
|---|---|---|---|
| Buy 1 | Call | $2.24 | N/A |
| Sell 1 | Call | $2.35 | N/A |
PLX bull call spread 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 strike width minus net debit times 100; max loss equals net debit times 100. Breakeven is long-call strike plus net debit.
PLX bull call spread payoff curve
Modeled P&L at expiration across a range of underlying prices for the bull call spread on PLX. 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 bull call spread on PLX
Bull call spreads on PLX reduce the cost of a bullish PLX stock position by selling a higher-strike call; suited to moderate-move theses where price reaches but does not vastly exceed the short strike.
PLX thesis for this bull call spread
The market-implied 1-standard-deviation range for PLX extends from approximately $2.02 on the downside to $2.46 on the upside. A PLX bull call spread caps both the risk and the reward of a bullish position; relative to an outright long call on PLX, the spread reduces the cost basis but limits the maximum profit to the strike width minus net debit. Current PLX IV rank near 6.28% 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 PLX at 34.80%. As a Healthcare name, PLX options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to PLX-specific events.
PLX bull call spread positions are structurally moderately 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. PLX positions also carry Healthcare sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move PLX alongside the broader basket even when PLX-specific fundamentals are unchanged. Long-premium structures like a bull call spread on PLX are particularly exposed to IV-crush risk through scheduled events (earnings, FDA decisions, central-bank meetings) where IV typically contracts post-event regardless of the directional outcome. Always rebuild the position from current PLX chain quotes before placing a trade.
Frequently asked questions
- What is a bull call spread on PLX?
- A bull call spread on PLX is the bull call spread strategy applied to PLX (stock). The strategy is structurally moderately bullish: A bull call spread buys an at-the-money call and sells an out-of-the-money call at a higher strike for defined risk and defined reward bounded by the strike width. With PLX stock at $2.24 on the most recent close, the strikes shown on this page are snapped to the nearest listed PLX chain strike and the premiums come straight from that session's bid/ask midpoint.
- How are PLX bull call spread max profit and max loss calculated?
- Max profit equals strike width minus net debit times 100; max loss equals net debit times 100. Breakeven is long-call strike plus net debit. For the PLX bull call spread priced from the end-of-day chain at a 30-day expiry (ATM IV 34.80%), 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 PLX bull call spread?
- The breakeven for the PLX bull call spread priced on this page is no defined breakeven on the modeled curve at expiration, derived from the end-of-day chain's premiums. Breakeven is the underlying price at which the strategy's P&L crosses zero ignoring transaction costs and assignment risk. The PLX market-implied 1-standard-deviation expected move in the same options snapshot is approximately 9.98%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
- When should you consider a bull call spread on PLX?
- Bull call spreads on PLX reduce the cost of a bullish PLX stock position by selling a higher-strike call; suited to moderate-move theses where price reaches but does not vastly exceed the short strike.
- How does current PLX implied volatility affect this bull call spread?
- PLX ATM IV is at 34.80% with IV rank near 6.28%, 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.