ARCT · Arcturus Therapeutics Holdings Inc.

Track ARCT — free

$8.23 +0.37 (+4.71%) At close · Aug 14

Market Cap

$233.92M

28.42M

Options Chain

Underlying $8.23 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 5 days to expiry · 12 contracts · mixed snapshot sessions · Jul 28, 2026–Aug 14, 2026; 3 unknown

Put / call OI

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dated and unknown snapshot sessions

Open interest

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dated and unknown snapshot sessions

Volume

—

dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 5d Sep 18 33d Dec 18 124d Mar 19 215d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
21	1	1055.5%	0.944	$5.00		—	—	—	—	0
Call · $2.5 In the money Snapshot session Aug 12, 2026 Last $5.00 Breakeven $7.50 Implied vol 1055.5% Delta 0.944 ≈94% ITM Gamma 0.011 Theta -0.116 Vega 0.001 Open interest 21 Model this call Put · $2.5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
356	1	420.8%	0.899	$2.10		$0.05	-0.085	377.8%	5	649
Call · $5 In the money Snapshot session Aug 10, 2026 Last $2.10 Breakeven $7.10 Implied vol 420.8% Delta 0.899 ≈90% ITM Gamma 0.043 Theta -0.073 Vega 0.002 Open interest 356 Model this call Put · $5 Snapshot session Aug 10, 2026 Last $0.05 Breakeven $4.95 Implied vol 377.8% Delta -0.085 ≈8% ITM Gamma 0.043 Theta -0.058 Vega 0.001 Open interest 649 Model this put
537	17	—	—	$0.70		$0.72	-0.211	119.6%	71	65
Call · $7.5 In the money Snapshot session Aug 14, 2026 Last $0.70 Breakeven $8.20 Implied vol — Delta — Gamma — Theta — Vega — Open interest 537 Model this call Put · $7.5 Snapshot session Aug 10, 2026 Last $0.72 Breakeven $6.78 Implied vol 119.6% Delta -0.211 ≈21% ITM Gamma 0.253 Theta -0.034 Vega 0.003 Open interest 65 Model this put
Underlying $8.23
1.6k	4	129.5%	0.125	$0.09		$2.60	-0.723	222.3%	2	0
Call · $10 Snapshot session Aug 14, 2026 Last $0.09 Breakeven $10.09 Implied vol 129.5% Delta 0.125 ≈13% ITM Gamma 0.164 Theta -0.026 Vega 0.002 Open interest 1.6k Model this call Put · $10 In the money Snapshot session Aug 10, 2026 Last $2.60 Breakeven $7.40 Implied vol 222.3% Delta -0.723 ≈72% ITM Gamma 0.157 Theta -0.073 Vega 0.004 Open interest 0 Model this put
18	10	316.9%	0.176	$0.10		$6.60	-0.901	246.6%	1	0
Call · $12.5 Snapshot session Aug 13, 2026 Last $0.10 Breakeven $12.60 Implied vol 316.9% Delta 0.176 ≈18% ITM Gamma 0.085 Theta -0.081 Vega 0.002 Open interest 18 Model this call Put · $12.5 In the money Snapshot session Jul 28, 2026 Last $6.60 Breakeven $5.90 Implied vol 246.6% Delta -0.901 ≈90% ITM Gamma 0.074 Theta -0.041 Vega 0.002 Open interest 0 Model this put
0	—	—	—	—		—	-0.893	353%	—	0
Call · $15 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $15 In the money Snapshot session Unknown Last — Breakeven — Implied vol 353% Delta -0.893 ≈89% ITM Gamma 0.054 Theta -0.063 Vega 0.002 Open interest 0 Model this put

About this data

Each contract's last price, volume, greeks, implied volatility and open interest belongs to the snapshot session shown in its details; unknown means the provider omitted the timestamp. This chain has mixed snapshot sessions · Jul 28, 2026–Aug 14, 2026; 3 unknown. Cross-contract positioning totals are shown only when every returned row has the same known session. 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.

Key facts CIK 1768224 CUSIP 03969T109 13F (30d) 129 filings 128 filers Visit website Investor relations