Eledon Pharmaceuticals (ELDN) Options Chain
NASDAQ: ELDNHealthcareBiotechnologyUSD
At close: Oct 9, 4:00 PM ET · Delayed 15 min
Expiration date
- Expiration
- Nov 20, 2026
- Days to expiration
- 40
- Share price
- $2.48
- Put/call ratio (OI)
- 0.05
- Put/call ratio (volume)
- 0.50
- ATM implied volatility
- 113.3%
- Expected move
- ±$0.93
- Open interest (C / P)
- 7.86K / 385
ELDN options summary
The ELDN options chain for the November 20, 2026 expiration lists 3 call and 3 put contracts, with 40 days until expiration. Open interest stands at 7,859 calls and 385 puts, a put/call ratio of 0.05, which is tilted bullish, with calls outnumbering puts. At-the-money implied volatility near the $2.50 strike is 113.3%, which implies the market expects a move of about ±$0.93 (37.5%) in Eledon Pharmaceuticals stock by expiration.
The most open interest sits at the $5.00 call (3.62K contracts) and the $2.50 put (378 contracts).
Summary generated from market data by MetaCap's automated system. Methodology
ELDN options chain · November 20, 2026
| Calls | Puts | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Last | Bid | Ask | Strike | Bid | Ask | Last | |||||
| 0.30 | 0.20 | 0.65 | 2.50 | 0.05 | 0.60 | 0.23 | |||||
| 0.03 | 0.00 | 0.05 | 5.00 | 2.10 | 3.00 | 2.15 | |||||
| 0.03 | 0.00 | 0.05 | 7.50 | 4.90 | 5.10 | 4.90 | |||||
In-the-money callsIn-the-money puts. IV = implied volatility, OI = open interest (contracts). Each contract covers 100 shares. Quotes delayed at least 15 minutes.
Frequently asked questions
What is the ELDN put/call ratio?
For the November 20, 2026 expiration, the ELDN put/call ratio based on open interest is 0.05 (385 puts vs 7,859 calls), and 0.50 based on today's volume. A ratio above 1 means more puts than calls.
What is ELDN's implied volatility?
At-the-money implied volatility for ELDN options expiring November 20, 2026 is about 113.3%, an annualized estimate of how much the market expects Eledon Pharmaceuticals stock to move.
How many ELDN option expiration dates are there?
ELDN has 4 listed expiration dates, from Oct 16, 2026 to May 21, 2027.
What does "in the money" mean?
A call is in the money when the strike price is below the current share price; a put is in the money when the strike is above it. In-the-money contracts have intrinsic value and are shaded in the table.