ELDN · Eledon Pharmaceuticals, Inc.

Track ELDN — free Ask ALVIS about ELDN

$3.40 -0.17 (-4.76%) At close · Jul 28

Market Cap

$262.44M

77.19M

Options Chain

15-min delayed Underlying $3.40 · at close Jul 28, 2026 Options Calculator

Positioning

Aug 21, 2026 · 23 days to expiry · 14 contracts

Put / call OI

3.15

Put-heavy positioning

Open interest

19,732

contracts outstanding

Volume

113

traded today

Max pain

$5.00

$1.60 above spot

ATM implied vol

153.5%

market's expected move

Open interest by strike

Calls Puts

0.5

1.5

2.5

7.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 23d Sep 18 51d Nov 20 114d Feb 19 205d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
42	1	—	—	$3.12		$0.03	—	—	3	3
Call · $0.5 In the money Last $3.12 Breakeven $3.62 Implied vol — Delta — Gamma — Theta — Vega — Open interest 42 Model this call Put · $0.5 Last $0.03 Breakeven $0.47 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this put
18	4	—	—	$2.46		—	—	—	—	0
Call · $1 In the money Last $2.46 Breakeven $3.46 Implied vol — Delta — Gamma — Theta — Vega — Open interest 18 Model this call Put · $1 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
27	1	319.1%	0.926	$2.45		$0.15	—	—	1	1
Call · $1.5 In the money Last $2.45 Breakeven $3.95 Implied vol 319.1% Delta 0.926 ≈93% ITM Gamma 0.05 Theta -0.009 Vega 0.001 Open interest 27 Model this call Put · $1.5 Last $0.15 Breakeven $1.35 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
87	1	226.4%	0.894	$1.50		$0.10	—	—	1	1
Call · $2 In the money Last $1.50 Breakeven $3.50 Implied vol 226.4% Delta 0.894 ≈89% ITM Gamma 0.092 Theta -0.008 Vega 0.002 Open interest 87 Model this call Put · $2 Last $0.10 Breakeven $1.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
370	6	180.9%	0.829	$1.10		$0.05	-0.118	126.1%	2	8.9k
Call · $2.5 In the money Last $1.10 Breakeven $3.60 Implied vol 180.9% Delta 0.829 ≈83% ITM Gamma 0.163 Theta -0.009 Vega 0.003 Open interest 370 Model this call Put · $2.5 Last $0.05 Breakeven $2.45 Implied vol 126.1% Delta -0.118 ≈12% ITM Gamma 0.18 Theta -0.005 Vega 0.002 Open interest 8.9k Model this put
Underlying $3.40
4k	47	122.2%	0.152	$0.05		$1.30	-0.952	84.7%	1	6.1k
Call · $5 Last $0.05 Breakeven $5.05 Implied vol 122.2% Delta 0.152 ≈15% ITM Gamma 0.22 Theta -0.005 Vega 0.002 Open interest 4k Model this call Put · $5 In the money Last $1.30 Breakeven $3.70 Implied vol 84.7% Delta -0.952 ≈95% ITM Gamma 0.155 Theta -0.001 Vega 0.001 Open interest 6.1k Model this put
193	45	204.6%	0.106	$0.01		—	-0.817	250.4%	—	0
Call · $7.5 Last $0.01 Breakeven $7.51 Implied vol 204.6% Delta 0.106 ≈11% ITM Gamma 0.102 Theta -0.007 Vega 0.001 Open interest 193 Model this call Put · $7.5 In the money Last — Breakeven — Implied vol 250.4% Delta -0.817 ≈82% ITM Gamma 0.122 Theta -0.012 Vega 0.002 Open interest 0 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. Bid and ask are not included on this plan.

In-the-money strikes are tinted, deepening toward the money, and the bar beside each open-interest figure scales to the heaviest strike shown. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 1404281 CUSIP 28617K101 13F (30d) 35 filings 35 filers Visit website Investor relations