GHRS · GH Research PLC

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$27.41 -0.22 (-0.80%) At close · Jul 24

Market Cap

$1.87B

68.61M

Options Chain

15-min delayed Underlying $27.41 · today Options Calculator

Positioning

Aug 21, 2026 · 26 days to expiry · 28 contracts

Put / call OI

2.66

Put-heavy positioning

Open interest

249

contracts outstanding

Volume

133

traded today

Max pain

$25.00

$2.41 below spot

ATM implied vol

74%

market's expected move

Open interest by strike

Calls Puts

2.5

7.5

12.5

17.5

22.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 26d Sep 18 54d Oct 16 82d Jan 15 173d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	538.5%	0.991	—		$0.01	—	—	6	19
Call · $2.5 In the money Last — Breakeven — Implied vol 538.5% Delta 0.991 ≈99% ITM Gamma 0.001 Theta -0.018 Vega 0.002 Open interest 0 Model this call Put · $2.5 Last $0.01 Breakeven $2.49 Implied vol — Delta — Gamma — Theta — Vega — Open interest 19 Model this put
0	—	408.2%	0.983	—		$0.11	—	—	2	0
Call · $5 In the money Last — Breakeven — Implied vol 408.2% Delta 0.983 ≈98% ITM Gamma 0.001 Theta -0.025 Vega 0.003 Open interest 0 Model this call Put · $5 Last $0.11 Breakeven $4.89 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	283.1%	0.982	—		—	—	—	—	0
Call · $7.5 In the money Last — Breakeven — Implied vol 283.1% Delta 0.982 ≈98% ITM Gamma 0.002 Theta -0.018 Vega 0.004 Open interest 0 Model this call Put · $7.5 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	222.2%	0.977	—		—	-0.077	499.4%	—	0
Call · $10 In the money Last — Breakeven — Implied vol 222.2% Delta 0.977 ≈98% ITM Gamma 0.003 Theta -0.018 Vega 0.004 Open interest 0 Model this call Put · $10 Last — Breakeven — Implied vol 499.4% Delta -0.077 ≈8% ITM Gamma 0.004 Theta -0.103 Vega 0.009 Open interest 0 Model this put
0	—	196.5%	0.961	—		—	-0.102	404.9%	—	0
Call · $12.5 In the money Last — Breakeven — Implied vol 196.5% Delta 0.961 ≈96% ITM Gamma 0.006 Theta -0.024 Vega 0.005 Open interest 0 Model this call Put · $12.5 Last — Breakeven — Implied vol 404.9% Delta -0.102 ≈10% ITM Gamma 0.006 Theta -0.102 Vega 0.015 Open interest 0 Model this put
0	—	155.1%	0.952	—		—	-0.063	171.7%	—	0
Call · $15 In the money Last — Breakeven — Implied vol 155.1% Delta 0.952 ≈95% ITM Gamma 0.009 Theta -0.023 Vega 0.009 Open interest 0 Model this call Put · $15 Last — Breakeven — Implied vol 171.7% Delta -0.063 ≈6% ITM Gamma 0.01 Theta -0.029 Vega 0.009 Open interest 0 Model this put
0	—	134.5%	0.922	—		—	-0.079	135.6%	—	0
Call · $17.5 In the money Last — Breakeven — Implied vol 134.5% Delta 0.922 ≈92% ITM Gamma 0.015 Theta -0.029 Vega 0.01 Open interest 0 Model this call Put · $17.5 Last — Breakeven — Implied vol 135.6% Delta -0.079 ≈8% ITM Gamma 0.015 Theta -0.028 Vega 0.01 Open interest 0 Model this put
0	—	103.1%	0.9	—		—	-0.102	104.7%	—	0
Call · $20 In the money Last — Breakeven — Implied vol 103.1% Delta 0.9 ≈90% ITM Gamma 0.024 Theta -0.027 Vega 0.011 Open interest 0 Model this call Put · $20 Last — Breakeven — Implied vol 104.7% Delta -0.102 ≈10% ITM Gamma 0.024 Theta -0.026 Vega 0.011 Open interest 0 Model this put
0	—	86.6%	0.831	—		—	-0.147	76.5%	—	0
Call · $22.5 In the money Last — Breakeven — Implied vol 86.6% Delta 0.831 ≈83% ITM Gamma 0.04 Theta -0.032 Vega 0.017 Open interest 0 Model this call Put · $22.5 Last — Breakeven — Implied vol 76.5% Delta -0.147 ≈15% ITM Gamma 0.041 Theta -0.024 Vega 0.017 Open interest 0 Model this put
48	39	85.9%	0.695	$4.20		$1.20	-0.268	62.2%	80	160
Call · $25 In the money Last $4.20 Breakeven $29.20 Implied vol 85.9% Delta 0.695 ≈69% ITM Gamma 0.057 Theta -0.044 Vega 0.024 Open interest 48 Model this call Put · $25 Last $1.20 Breakeven $23.80 Implied vol 62.2% Delta -0.268 ≈27% ITM Gamma 0.073 Theta -0.028 Vega 0.024 Open interest 160 Model this put
Underlying $27.41
2	2	82.3%	0.38	$2.10		$3.20	-0.654	70.4%	2	2
Call · $30 Last $2.10 Breakeven $32.10 Implied vol 82.3% Delta 0.38 ≈38% ITM Gamma 0.064 Theta -0.045 Vega 0.027 Open interest 2 Model this call Put · $30 In the money Last $3.20 Breakeven $26.80 Implied vol 70.4% Delta -0.654 ≈65% ITM Gamma 0.073 Theta -0.035 Vega 0.027 Open interest 2 Model this put
17	1	80.8%	0.151	$1.00		—	-0.828	88%	—	0
Call · $35 Last $1.00 Breakeven $36.00 Implied vol 80.8% Delta 0.151 ≈15% ITM Gamma 0.04 Theta -0.027 Vega 0.015 Open interest 17 Model this call Put · $35 In the money Last — Breakeven — Implied vol 88% Delta -0.828 ≈83% ITM Gamma 0.041 Theta -0.029 Vega 0.022 Open interest 0 Model this put
1	1	110.5%	0.13	$1.15		—	-0.968	77.9%	—	0
Call · $40 Last $1.15 Breakeven $41.15 Implied vol 110.5% Delta 0.13 ≈13% ITM Gamma 0.026 Theta -0.033 Vega 0.016 Open interest 1 Model this call Put · $40 In the money Last — Breakeven — Implied vol 77.9% Delta -0.968 ≈97% ITM Gamma 0.016 Theta -0.006 Vega 0.006 Open interest 0 Model this put
0	—	130.8%	0.105	—		—	-0.973	96.1%	—	0
Call · $45 Last — Breakeven — Implied vol 130.8% Delta 0.105 ≈10% ITM Gamma 0.019 Theta -0.034 Vega 0.017 Open interest 0 Model this call Put · $45 In the money Last — Breakeven — Implied vol 96.1% Delta -0.973 ≈97% ITM Gamma 0.012 Theta -0.007 Vega 0.004 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 1855129 CUSIP G3855L106 13F (30d) 4 filings 4 filers Visit website Investor relations