ENTX Bull Call Spread Strategy
ENTX (Entera Bio Ltd.), in the Healthcare sector, (Biotechnology industry), listed on NASDAQ.
Entera Bio Ltd. is a biopharmaceutical firm in the clinical development phase, dedicated to creating and marketing oral medications composed of large molecules, addressing medical conditions that currently lack adequate treatments. Its primary experimental drugs are EB612, currently undergoing Phase II clinical assessment for hypoparathyroidism, and EB613, which has concluded Phase II studies for osteoporosis and is now in Phase I trials for treating non-healing bone fractures. Furthermore, the company holds a collaborative research and licensing pact with Amgen Inc. aimed at identifying and advancing potential therapeutic compounds for inflammatory conditions and other grave ailments. Established in 2009, Entera Bio Ltd. operates from its headquarters in Jerusalem, Israel.
ENTX (Entera Bio Ltd.) trades in the Healthcare sector, specifically Biotechnology, with a market capitalization of approximately $138.0M, a beta of 1.40 versus the broader market, a 52-week range of 0.91-4.2, average daily share volume of 2.6M, a public-listing history dating back to 2018, approximately 21 full-time employees. These structural characteristics shape how ENTX stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.
A beta of 1.40 indicates ENTX 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 bull call spread on ENTX?
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.
ENTX snapshot
As of August 14, 2026, spot at $2.88, ATM IV 154.90%, IV rank 29.32%, expected move 44.41%. The bull call spread on ENTX 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 ENTX specifically: ENTX IV at 154.90% is on the cheap side of its 1-year range, which favors premium-buying structures like a ENTX bull call spread, with a market-implied 1-standard-deviation move of approximately 44.41% (roughly $1.28 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 ENTX expiries trade a higher absolute premium for lower per-day decay. Position sizing on ENTX should anchor to the underlying notional of $2.88 per share and to the trader's directional view on ENTX stock.
ENTX bull call spread setup
The ENTX 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 ENTX at $2.88 on that close, the first option leg uses a $2.88 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed ENTX 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 ENTX shares for the stock leg in covered calls and collars).
| Action | Type | Strike / Basis | Premium (est) |
|---|---|---|---|
| Buy 1 | Call | $2.88 | N/A |
| Sell 1 | Call | $3.02 | N/A |
ENTX 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.
ENTX bull call spread payoff curve
Modeled P&L at expiration across a range of underlying prices for the bull call spread on ENTX. 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 ENTX
Bull call spreads on ENTX reduce the cost of a bullish ENTX stock position by selling a higher-strike call; suited to moderate-move theses where price reaches but does not vastly exceed the short strike.
ENTX thesis for this bull call spread
The market-implied 1-standard-deviation range for ENTX extends from approximately $1.60 on the downside to $4.16 on the upside. A ENTX bull call spread caps both the risk and the reward of a bullish position; relative to an outright long call on ENTX, the spread reduces the cost basis but limits the maximum profit to the strike width minus net debit. Current ENTX IV rank near 29.32% 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 ENTX at 154.90%. As a Healthcare name, ENTX options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to ENTX-specific events.
ENTX 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. ENTX positions also carry Healthcare sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move ENTX alongside the broader basket even when ENTX-specific fundamentals are unchanged. Long-premium structures like a bull call spread on ENTX 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 ENTX chain quotes before placing a trade.
Frequently asked questions
- What is a bull call spread on ENTX?
- A bull call spread on ENTX is the bull call spread strategy applied to ENTX (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 ENTX stock at $2.88 on the most recent close, the strikes shown on this page are snapped to the nearest listed ENTX chain strike and the premiums come straight from that session's bid/ask midpoint.
- How are ENTX 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 ENTX bull call spread priced from the end-of-day chain at a 30-day expiry (ATM IV 154.90%), 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 ENTX bull call spread?
- The breakeven for the ENTX 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 ENTX market-implied 1-standard-deviation expected move in the same options snapshot is approximately 44.41%; 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 ENTX?
- Bull call spreads on ENTX reduce the cost of a bullish ENTX 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 ENTX implied volatility affect this bull call spread?
- ENTX ATM IV is at 154.90% with IV rank near 29.32%, 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.