GRRR · Gorilla Technology Group Inc.

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$16.37 +0.94 (+6.09%) At close · Aug 14

Market Cap

$454.39M

27.76M

Options Chain

Underlying $16.37 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 5 days to expiry · 76 contracts · mixed snapshot sessions · Jun 2, 2026–Aug 14, 2026; 21 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

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dated and unknown snapshot sessions

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 5d Aug 28 12d Sep 4 19d Sep 11 26d Sep 18 33d Sep 25 40d Oct 2 47d Nov 20 96d Jan 15 152d Feb 19 187d Mar 19 215d Sep 17 397d Jan 21 523d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	—	—	—		$0.18	—	—	1	2
Call · $2 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $2 Snapshot session Aug 3, 2026 Last $0.18 Breakeven $1.82 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this put
0	1	—	—	$9.90		—	—	—	—	0
Call · $2.5 In the money Snapshot session Jul 20, 2026 Last $9.90 Breakeven $12.40 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $2.5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $3 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $3 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $4 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $4 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
1	4	—	—	$7.00		$0.05	-0.056	988.3%	20	385
Call · $5 In the money Snapshot session Jul 17, 2026 Last $7.00 Breakeven $12.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this call Put · $5 Snapshot session Jul 24, 2026 Last $0.05 Breakeven $4.95 Implied vol 988.3% Delta -0.056 ≈6% ITM Gamma 0.006 Theta -0.206 Vega 0.002 Open interest 385 Model this put
0	—	—	—	—		—	-0.043	607.2%	—	0
Call · $6 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $6 Snapshot session Unknown Last — Breakeven — Implied vol 607.2% Delta -0.043 ≈4% ITM Gamma 0.007 Theta -0.101 Vega 0.002 Open interest 0 Model this put
0	—	—	—	—		$0.17	-0.026	408.1%	1	2
Call · $7 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $7 Snapshot session Jul 31, 2026 Last $0.17 Breakeven $6.83 Implied vol 408.1% Delta -0.026 ≈3% ITM Gamma 0.007 Theta -0.044 Vega 0.001 Open interest 2 Model this put
61	1	—	—	$7.48		$0.06	-0.028	378.3%	30	239
Call · $7.5 In the money Snapshot session Aug 12, 2026 Last $7.48 Breakeven $14.98 Implied vol — Delta — Gamma — Theta — Vega — Open interest 61 Model this call Put · $7.5 Snapshot session Aug 11, 2026 Last $0.06 Breakeven $7.44 Implied vol 378.3% Delta -0.028 ≈3% ITM Gamma 0.008 Theta -0.044 Vega 0.001 Open interest 239 Model this put
0	—	—	—	—		$0.15	-0.062	463.2%	13	125
Call · $8 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $8 Snapshot session Aug 5, 2026 Last $0.15 Breakeven $7.85 Implied vol 463.2% Delta -0.062 ≈6% ITM Gamma 0.013 Theta -0.103 Vega 0.002 Open interest 125 Model this put
0	—	—	—	—		$0.11	-0.054	390.7%	5	16
Call · $8.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $8.5 Snapshot session Aug 7, 2026 Last $0.11 Breakeven $8.39 Implied vol 390.7% Delta -0.054 ≈5% ITM Gamma 0.014 Theta -0.078 Vega 0.002 Open interest 16 Model this put
0	—	—	—	—		$0.30	-0.077	420.1%	5	30
Call · $9 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $9 Snapshot session Aug 5, 2026 Last $0.30 Breakeven $8.70 Implied vol 420.1% Delta -0.077 ≈8% ITM Gamma 0.017 Theta -0.112 Vega 0.003 Open interest 30 Model this put
0	—	—	—	—		$0.05	-0.054	315.6%	1	23
Call · $9.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $9.5 Snapshot session Aug 14, 2026 Last $0.05 Breakeven $9.45 Implied vol 315.6% Delta -0.054 ≈5% ITM Gamma 0.017 Theta -0.063 Vega 0.003 Open interest 23 Model this put
187	12	—	—	$5.40		$0.05	-0.034	239.8%	37	675
Call · $10 In the money Snapshot session Aug 13, 2026 Last $5.40 Breakeven $15.40 Implied vol — Delta — Gamma — Theta — Vega — Open interest 187 Model this call Put · $10 Snapshot session Aug 14, 2026 Last $0.05 Breakeven $9.95 Implied vol 239.8% Delta -0.034 ≈3% ITM Gamma 0.016 Theta -0.033 Vega 0.002 Open interest 675 Model this put
0	—	—	—	—		$0.20	-0.074	284%	2	18
Call · $10.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $10.5 Snapshot session Aug 11, 2026 Last $0.20 Breakeven $10.30 Implied vol 284% Delta -0.074 ≈7% ITM Gamma 0.024 Theta -0.072 Vega 0.003 Open interest 18 Model this put
26	1	—	—	$1.45		$0.07	-0.049	215.3%	22	37
Call · $11 In the money Snapshot session Aug 3, 2026 Last $1.45 Breakeven $12.45 Implied vol — Delta — Gamma — Theta — Vega — Open interest 26 Model this call Put · $11 Snapshot session Aug 14, 2026 Last $0.07 Breakeven $10.93 Implied vol 215.3% Delta -0.049 ≈5% ITM Gamma 0.024 Theta -0.04 Vega 0.002 Open interest 37 Model this put
9	5	—	—	$3.60		$0.15	-0.082	230.1%	80	22
Call · $11.5 In the money Snapshot session Aug 13, 2026 Last $3.60 Breakeven $15.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 9 Model this call Put · $11.5 Snapshot session Aug 14, 2026 Last $0.15 Breakeven $11.35 Implied vol 230.1% Delta -0.082 ≈8% ITM Gamma 0.033 Theta -0.064 Vega 0.003 Open interest 22 Model this put
131	1	—	—	$3.18		$0.15	-0.068	184.3%	326	364
Call · $12 In the money Snapshot session Aug 13, 2026 Last $3.18 Breakeven $15.18 Implied vol — Delta — Gamma — Theta — Vega — Open interest 131 Model this call Put · $12 Snapshot session Aug 14, 2026 Last $0.15 Breakeven $11.85 Implied vol 184.3% Delta -0.068 ≈7% ITM Gamma 0.035 Theta -0.044 Vega 0.003 Open interest 364 Model this put
745	7	—	—	$3.60		$0.20	-0.084	172.8%	315	657
Call · $12.5 In the money Snapshot session Aug 14, 2026 Last $3.60 Breakeven $16.10 Implied vol — Delta — Gamma — Theta — Vega — Open interest 745 Model this call Put · $12.5 Snapshot session Aug 14, 2026 Last $0.20 Breakeven $12.30 Implied vol 172.8% Delta -0.084 ≈8% ITM Gamma 0.044 Theta -0.048 Vega 0.003 Open interest 657 Model this put
43	36	—	—	$2.36		$0.30	-0.129	185.9%	75	5
Call · $13 In the money Snapshot session Aug 13, 2026 Last $2.36 Breakeven $15.36 Implied vol — Delta — Gamma — Theta — Vega — Open interest 43 Model this call Put · $13 Snapshot session Aug 14, 2026 Last $0.30 Breakeven $12.70 Implied vol 185.9% Delta -0.129 ≈13% ITM Gamma 0.056 Theta -0.072 Vega 0.005 Open interest 5 Model this put
68	1	164.5%	0.855	$2.40		$0.35	-0.138	158.8%	71	3
Call · $13.5 In the money Snapshot session Aug 14, 2026 Last $2.40 Breakeven $15.90 Implied vol 164.5% Delta 0.855 ≈86% ITM Gamma 0.069 Theta -0.07 Vega 0.005 Open interest 68 Model this call Put · $13.5 Snapshot session Aug 14, 2026 Last $0.35 Breakeven $13.15 Implied vol 158.8% Delta -0.138 ≈14% ITM Gamma 0.069 Theta -0.064 Vega 0.005 Open interest 3 Model this put
115	8	128.1%	0.86	$2.38		$0.50	-0.196	173.3%	26	123
Call · $14 In the money Snapshot session Aug 14, 2026 Last $2.38 Breakeven $16.38 Implied vol 128.1% Delta 0.86 ≈86% ITM Gamma 0.086 Theta -0.053 Vega 0.005 Open interest 115 Model this call Put · $14 Snapshot session Aug 14, 2026 Last $0.50 Breakeven $13.50 Implied vol 173.3% Delta -0.196 ≈20% ITM Gamma 0.081 Theta -0.089 Vega 0.005 Open interest 123 Model this put
133	49	206%	0.729	$1.30		$0.70	-0.277	217.1%	6	65
Call · $14.5 In the money Snapshot session Aug 13, 2026 Last $1.30 Breakeven $15.80 Implied vol 206% Delta 0.729 ≈73% ITM Gamma 0.08 Theta -0.126 Vega 0.007 Open interest 133 Model this call Put · $14.5 Snapshot session Aug 14, 2026 Last $0.70 Breakeven $13.80 Implied vol 217.1% Delta -0.277 ≈28% ITM Gamma 0.077 Theta -0.133 Vega 0.007 Open interest 65 Model this put
2.6k	150	205.6%	0.685	$2.00		$0.60	-0.29	157.9%	54	259
Call · $15 In the money Snapshot session Aug 14, 2026 Last $2.00 Breakeven $17.00 Implied vol 205.6% Delta 0.685 ≈68% ITM Gamma 0.087 Theta -0.136 Vega 0.008 Open interest 2.6k Model this call Put · $15 Snapshot session Aug 14, 2026 Last $0.60 Breakeven $14.40 Implied vol 157.9% Delta -0.29 ≈29% ITM Gamma 0.108 Theta -0.099 Vega 0.007 Open interest 259 Model this put
92	65	148.9%	0.656	$1.50		$0.92	-0.355	171.2%	76	7
Call · $15.5 In the money Snapshot session Aug 14, 2026 Last $1.50 Breakeven $17.00 Implied vol 148.9% Delta 0.656 ≈66% ITM Gamma 0.124 Theta -0.102 Vega 0.008 Open interest 92 Model this call Put · $15.5 Snapshot session Aug 14, 2026 Last $0.92 Breakeven $14.58 Implied vol 171.2% Delta -0.355 ≈35% ITM Gamma 0.108 Theta -0.116 Vega 0.008 Open interest 7 Model this put
142	112	141.7%	0.59	$1.50		$1.18	-0.411	147.9%	24	24
Call · $16 In the money Snapshot session Aug 14, 2026 Last $1.50 Breakeven $17.50 Implied vol 141.7% Delta 0.59 ≈59% ITM Gamma 0.136 Theta -0.102 Vega 0.008 Open interest 142 Model this call Put · $16 Snapshot session Aug 14, 2026 Last $1.18 Breakeven $14.82 Implied vol 147.9% Delta -0.411 ≈41% ITM Gamma 0.131 Theta -0.105 Vega 0.008 Open interest 24 Model this put
Underlying $16.37
85	43	139%	0.52	$0.95		$4.76	-0.464	188.8%	1	1
Call · $16.5 Snapshot session Aug 14, 2026 Last $0.95 Breakeven $17.45 Implied vol 139% Delta 0.52 ≈52% ITM Gamma 0.144 Theta -0.103 Vega 0.008 Open interest 85 Model this call Put · $16.5 In the money Snapshot session Jul 27, 2026 Last $4.76 Breakeven $11.74 Implied vol 188.8% Delta -0.464 ≈46% ITM Gamma 0.106 Theta -0.138 Vega 0.008 Open interest 1 Model this put
83	71	120.3%	0.434	$0.89		$2.80	-0.526	169.3%	6	10
Call · $17 Snapshot session Aug 14, 2026 Last $0.89 Breakeven $17.89 Implied vol 120.3% Delta 0.434 ≈43% ITM Gamma 0.163 Theta -0.087 Vega 0.008 Open interest 83 Model this call Put · $17 In the money Snapshot session Aug 13, 2026 Last $2.80 Breakeven $14.20 Implied vol 169.3% Delta -0.526 ≈53% ITM Gamma 0.117 Theta -0.122 Vega 0.008 Open interest 10 Model this put
1.3k	46	147.5%	0.393	$0.55		$2.15	-0.554	201.9%	25	460
Call · $17.5 Snapshot session Aug 14, 2026 Last $0.55 Breakeven $18.05 Implied vol 147.5% Delta 0.393 ≈39% ITM Gamma 0.132 Theta -0.106 Vega 0.008 Open interest 1.3k Model this call Put · $17.5 In the money Snapshot session Aug 14, 2026 Last $2.15 Breakeven $15.35 Implied vol 201.9% Delta -0.554 ≈55% ITM Gamma 0.098 Theta -0.145 Vega 0.008 Open interest 460 Model this put
69	172	138.5%	0.324	$0.46		—	-0.599	203.2%	—	0
Call · $18 Snapshot session Aug 14, 2026 Last $0.46 Breakeven $18.46 Implied vol 138.5% Delta 0.324 ≈32% ITM Gamma 0.129 Theta -0.091 Vega 0.007 Open interest 69 Model this call Put · $18 In the money Snapshot session Unknown Last — Breakeven — Implied vol 203.2% Delta -0.599 ≈60% ITM Gamma 0.096 Theta -0.145 Vega 0.007 Open interest 0 Model this put
0	5	123.6%	0.237	$0.38		—	-0.686	166.2%	—	0
Call · $18.5 Snapshot session Aug 14, 2026 Last $0.38 Breakeven $18.88 Implied vol 123.6% Delta 0.237 ≈24% ITM Gamma 0.125 Theta -0.071 Vega 0.006 Open interest 0 Model this call Put · $18.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 166.2% Delta -0.686 ≈69% ITM Gamma 0.106 Theta -0.107 Vega 0.007 Open interest 0 Model this put
115	8	128.9%	0.2	$0.35		—	-0.695	190%	—	0
Call · $19 Snapshot session Aug 14, 2026 Last $0.35 Breakeven $19.35 Implied vol 128.9% Delta 0.2 ≈20% ITM Gamma 0.108 Theta -0.066 Vega 0.006 Open interest 115 Model this call Put · $19 In the money Snapshot session Unknown Last — Breakeven — Implied vol 190% Delta -0.695 ≈70% ITM Gamma 0.092 Theta -0.121 Vega 0.008 Open interest 0 Model this put
2.9k	84	129.1%	0.122	$0.15		$6.15	-0.678	258.8%	13	526
Call · $20 Snapshot session Aug 14, 2026 Last $0.15 Breakeven $20.15 Implied vol 129.1% Delta 0.122 ≈12% ITM Gamma 0.078 Theta -0.048 Vega 0.004 Open interest 2.9k Model this call Put · $20 In the money Snapshot session Aug 12, 2026 Last $6.15 Breakeven $13.85 Implied vol 258.8% Delta -0.678 ≈68% ITM Gamma 0.069 Theta -0.169 Vega 0.008 Open interest 526 Model this put
1	1	138.3%	0.083	$0.10		—	-0.706	283.1%	—	0
Call · $21 Snapshot session Aug 12, 2026 Last $0.10 Breakeven $21.10 Implied vol 138.3% Delta 0.083 ≈8% ITM Gamma 0.055 Theta -0.039 Vega 0.004 Open interest 1 Model this call Put · $21 In the money Snapshot session Unknown Last — Breakeven — Implied vol 283.1% Delta -0.706 ≈71% ITM Gamma 0.061 Theta -0.179 Vega 0.008 Open interest 0 Model this put
0	—	156.5%	0.075	—		—	-0.785	251.3%	—	0
Call · $22 Snapshot session Unknown Last — Breakeven — Implied vol 156.5% Delta 0.075 ≈7% ITM Gamma 0.045 Theta -0.041 Vega 0.002 Open interest 0 Model this call Put · $22 In the money Snapshot session Unknown Last — Breakeven — Implied vol 251.3% Delta -0.785 ≈79% ITM Gamma 0.058 Theta -0.132 Vega 0.006 Open interest 0 Model this put
404	2	164.8%	0.072	$0.10		$9.47	-0.792	262.8%	1	20
Call · $22.5 Snapshot session Aug 13, 2026 Last $0.10 Breakeven $22.60 Implied vol 164.8% Delta 0.072 ≈7% ITM Gamma 0.041 Theta -0.041 Vega 0.002 Open interest 404 Model this call Put · $22.5 In the money Snapshot session Aug 10, 2026 Last $9.47 Breakeven $13.03 Implied vol 262.8% Delta -0.792 ≈79% ITM Gamma 0.054 Theta -0.136 Vega 0.006 Open interest 20 Model this put
2.1k	140	194.2%	0.049	$0.05		$6.60	-0.815	316.9%	1	17
Call · $25 Snapshot session Aug 14, 2026 Last $0.05 Breakeven $25.05 Implied vol 194.2% Delta 0.049 ≈5% ITM Gamma 0.026 Theta -0.036 Vega 0.003 Open interest 2.1k Model this call Put · $25 In the money Snapshot session Jul 1, 2026 Last $6.60 Breakeven $18.40 Implied vol 316.9% Delta -0.815 ≈82% ITM Gamma 0.042 Theta -0.154 Vega 0.006 Open interest 17 Model this put
2.2k	1	299.1%	0.073	$0.02		$9.54	-0.824	415%	60	60
Call · $30 Snapshot session Aug 6, 2026 Last $0.02 Breakeven $30.02 Implied vol 299.1% Delta 0.073 ≈7% ITM Gamma 0.023 Theta -0.075 Vega 0.003 Open interest 2.2k Model this call Put · $30 In the money Snapshot session Jun 2, 2026 Last $9.54 Breakeven $20.46 Implied vol 415% Delta -0.824 ≈82% ITM Gamma 0.031 Theta -0.195 Vega 0.005 Open interest 60 Model this put
115	10	346.5%	0.057	$0.10		—	-0.795	537.3%	—	0
Call · $35 Snapshot session Jul 27, 2026 Last $0.10 Breakeven $35.10 Implied vol 346.5% Delta 0.057 ≈6% ITM Gamma 0.016 Theta -0.072 Vega 0.003 Open interest 115 Model this call Put · $35 In the money Snapshot session Unknown Last — Breakeven — Implied vol 537.3% Delta -0.795 ≈79% ITM Gamma 0.026 Theta -0.279 Vega 0.005 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 · Jun 2, 2026–Aug 14, 2026; 21 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. The 25 strikes around the money are shown by default — switch to "All 38" for the wings.

Key facts CIK 1903145 CUSIP G4000K175 13F (30d) 80 filings 79 filers Visit website Investor relations