ELDN Bull Call Spread Strategy
ELDN (Eledon Pharmaceuticals, Inc.), in the Healthcare sector, (Biotechnology industry), listed on NASDAQ.
Eledon Pharmaceuticals, Inc., clinical stage biopharmaceutical company, focuses on developing medicines for the patients living with autoimmune disease and amyotrophic lateral sclerosis (ALS), and requiring an organ or cell-based transplant. Its lead product candidate includes AT-1501, a humanized monoclonal antibody to target CD40 Ligand that is a molecule expressed on the surface of human immune system T cells, which is in Phase 2a clinical trials for the treatment of ALS, and Phase 2 clinical trials in islet cell transplantation for the treatment of type 1 diabetes. The company was formerly known as Novus Therapeutics, Inc. and changed its name to Eledon Pharmaceuticals, Inc. in January 2021. Eledon Pharmaceuticals, Inc. is headquartered in Irvine, California.
ELDN (Eledon Pharmaceuticals, Inc.) trades in the Healthcare sector, specifically Biotechnology, with a market capitalization of approximately $232.6M, a beta of 0.95 versus the broader market, a 52-week range of 1.35-4.6, average daily share volume of 1.5M, a public-listing history dating back to 2014, approximately 31 full-time employees. These structural characteristics shape how ELDN stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.
A beta of 0.95 places ELDN roughly in line with broader market moves, so the strategy payoff and realized volatility track the index-equivalent baseline.
What is a bull call spread on ELDN?
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.
Current ELDN snapshot
As of May 15, 2026, spot at $3.79, ATM IV 82.10%, IV rank 13.38%, expected move 23.54%. The bull call spread on ELDN 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 bull call spread structure on ELDN specifically: ELDN IV at 82.10% is on the cheap side of its 1-year range, which favors premium-buying structures like a ELDN bull call spread, with a market-implied 1-standard-deviation move of approximately 23.54% (roughly $0.89 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 ELDN expiries trade a higher absolute premium for lower per-day decay. Position sizing on ELDN should anchor to the underlying notional of $3.79 per share and to the trader's directional view on ELDN stock.
ELDN bull call spread setup
The ELDN 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 ELDN near $3.79, the first option leg uses a $3.79 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed ELDN 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 ELDN shares for the stock leg in covered calls and collars).
| Action | Type | Strike / Basis | Premium (est) |
|---|---|---|---|
| Buy 1 | Call | $3.79 | N/A |
| Sell 1 | Call | $3.98 | N/A |
ELDN 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.
ELDN bull call spread payoff curve
Modeled P&L at expiration across a range of underlying prices for the bull call spread on ELDN. 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 ELDN
Bull call spreads on ELDN reduce the cost of a bullish ELDN stock position by selling a higher-strike call; suited to moderate-move theses where price reaches but does not vastly exceed the short strike.
ELDN thesis for this bull call spread
The market-implied 1-standard-deviation range for ELDN extends from approximately $2.90 on the downside to $4.68 on the upside. A ELDN bull call spread caps both the risk and the reward of a bullish position; relative to an outright long call on ELDN, the spread reduces the cost basis but limits the maximum profit to the strike width minus net debit. Current ELDN IV rank near 13.38% 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 ELDN at 82.10%. As a Healthcare name, ELDN options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to ELDN-specific events.
ELDN 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. ELDN positions also carry Healthcare sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move ELDN alongside the broader basket even when ELDN-specific fundamentals are unchanged. Long-premium structures like a bull call spread on ELDN 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 ELDN chain quotes before placing a trade.
Frequently asked questions
- What is a bull call spread on ELDN?
- A bull call spread on ELDN is the bull call spread strategy applied to ELDN (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 ELDN stock trading near $3.79, the strikes shown on this page are snapped to the nearest listed ELDN chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
- How are ELDN 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 ELDN bull call spread priced from the end-of-day chain at a 30-day expiry (ATM IV 82.10%), 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 ELDN bull call spread?
- The breakeven for the ELDN bull call spread 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 ELDN market-implied 1-standard-deviation expected move is approximately 23.54%; 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 ELDN?
- Bull call spreads on ELDN reduce the cost of a bullish ELDN 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 ELDN implied volatility affect this bull call spread?
- ELDN ATM IV is at 82.10% with IV rank near 13.38%, 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.