ORKA · Oruka Therapeutics, Inc.

Track ORKA — free

$107.96 +3.10 (+2.96%) At close · Aug 21

Market Cap

$7.15B

66.21M

Options Chain

Underlying $107.96 · at close Aug 21, 2026 Options Calculator

Positioning

Sep 18, 2026 · 27 days to expiry · 48 contracts · mixed snapshot sessions · Jul 16, 2026–Aug 21, 2026; 23 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

Sep 18 27d Oct 16 55d Nov 20 90d Dec 18 118d Jan 15 146d Feb 19 181d Mar 19 209d Dec 17 482d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	214.2%	0.963	—		—	-0.019	174.7%	—	0
Call · $45 In the money Snapshot session Unknown Last — Breakeven — Implied vol 214.2% Delta 0.963 ≈96% ITM Gamma 0.001 Theta -0.097 Vega 0.018 Open interest 0 Model this call Put · $45 Snapshot session Unknown Last — Breakeven — Implied vol 174.7% Delta -0.019 ≈2% ITM Gamma 0.001 Theta -0.043 Vega 0.019 Open interest 0 Model this put
0	—	186.4%	0.961	—		$1.20	-0.023	157.5%	1	1
Call · $50 In the money Snapshot session Unknown Last — Breakeven — Implied vol 186.4% Delta 0.961 ≈96% ITM Gamma 0.002 Theta -0.089 Vega 0.02 Open interest 0 Model this call Put · $50 Snapshot session Jul 16, 2026 Last $1.20 Breakeven $48.80 Implied vol 157.5% Delta -0.023 ≈2% ITM Gamma 0.001 Theta -0.046 Vega 0.02 Open interest 1 Model this put
0	—	168.7%	0.954	—		$1.85	-0.028	142%	1	1
Call · $55 In the money Snapshot session Unknown Last — Breakeven — Implied vol 168.7% Delta 0.954 ≈95% ITM Gamma 0.002 Theta -0.092 Vega 0.036 Open interest 0 Model this call Put · $55 Snapshot session Jul 16, 2026 Last $1.85 Breakeven $53.15 Implied vol 142% Delta -0.028 ≈3% ITM Gamma 0.002 Theta -0.048 Vega 0.021 Open interest 1 Model this put
0	—	149%	0.949	—		$1.75	-0.027	121%	1	1
Call · $60 In the money Snapshot session Unknown Last — Breakeven — Implied vol 149% Delta 0.949 ≈95% ITM Gamma 0.002 Theta -0.089 Vega 0.038 Open interest 0 Model this call Put · $60 Snapshot session Jul 29, 2026 Last $1.75 Breakeven $58.25 Implied vol 121% Delta -0.027 ≈3% ITM Gamma 0.002 Theta -0.04 Vega 0.022 Open interest 1 Model this put
0	—	139.8%	0.933	—		$2.75	-0.031	106.1%	1	2
Call · $65 In the money Snapshot session Unknown Last — Breakeven — Implied vol 139.8% Delta 0.933 ≈93% ITM Gamma 0.003 Theta -0.103 Vega 0.039 Open interest 0 Model this call Put · $65 Snapshot session Jul 27, 2026 Last $2.75 Breakeven $62.25 Implied vol 106.1% Delta -0.031 ≈3% ITM Gamma 0.002 Theta -0.039 Vega 0.023 Open interest 2 Model this put
0	—	125.2%	0.921	—		—	-0.041	96.7%	—	0
Call · $70 In the money Snapshot session Unknown Last — Breakeven — Implied vol 125.2% Delta 0.921 ≈92% ITM Gamma 0.004 Theta -0.105 Vega 0.041 Open interest 0 Model this call Put · $70 Snapshot session Unknown Last — Breakeven — Implied vol 96.7% Delta -0.041 ≈4% ITM Gamma 0.003 Theta -0.045 Vega 0.024 Open interest 0 Model this put
0	—	122.3%	0.892	—		—	-0.067	95.1%	—	0
Call · $75 In the money Snapshot session Unknown Last — Breakeven — Implied vol 122.3% Delta 0.892 ≈89% ITM Gamma 0.005 Theta -0.129 Vega 0.064 Open interest 0 Model this call Put · $75 Snapshot session Unknown Last — Breakeven — Implied vol 95.1% Delta -0.067 ≈7% ITM Gamma 0.005 Theta -0.065 Vega 0.042 Open interest 0 Model this put
4	2	107.9%	0.872	$23.65		$2.00	-0.103	94.8%	1	1
Call · $80 In the money Snapshot session Aug 10, 2026 Last $23.65 Breakeven $103.65 Implied vol 107.9% Delta 0.872 ≈87% ITM Gamma 0.007 Theta -0.128 Vega 0.066 Open interest 4 Model this call Put · $80 Snapshot session Aug 11, 2026 Last $2.00 Breakeven $78.00 Implied vol 94.8% Delta -0.103 ≈10% ITM Gamma 0.007 Theta -0.091 Vega 0.044 Open interest 1 Model this put
16	2	104.1%	0.83	$27.75		$2.50	-0.152	93.4%	1	1
Call · $85 In the money Snapshot session Aug 19, 2026 Last $27.75 Breakeven $112.75 Implied vol 104.1% Delta 0.83 ≈83% ITM Gamma 0.008 Theta -0.149 Vega 0.068 Open interest 16 Model this call Put · $85 Snapshot session Aug 21, 2026 Last $2.50 Breakeven $82.50 Implied vol 93.4% Delta -0.152 ≈15% ITM Gamma 0.009 Theta -0.116 Vega 0.068 Open interest 1 Model this put
13	1	101.3%	0.778	$21.00		$2.35	-0.2	88.6%	1	2
Call · $90 In the money Snapshot session Aug 21, 2026 Last $21.00 Breakeven $111.00 Implied vol 101.3% Delta 0.778 ≈78% ITM Gamma 0.01 Theta -0.168 Vega 0.092 Open interest 13 Model this call Put · $90 Snapshot session Aug 18, 2026 Last $2.35 Breakeven $87.65 Implied vol 88.6% Delta -0.2 ≈20% ITM Gamma 0.011 Theta -0.132 Vega 0.092 Open interest 2 Model this put
52	1	99.2%	0.718	$17.00		$4.25	-0.263	84.1%	1	17
Call · $95 In the money Snapshot session Aug 21, 2026 Last $17.00 Breakeven $112.00 Implied vol 99.2% Delta 0.718 ≈72% ITM Gamma 0.012 Theta -0.187 Vega 0.094 Open interest 52 Model this call Put · $95 Snapshot session Aug 21, 2026 Last $4.25 Breakeven $90.75 Implied vol 84.1% Delta -0.263 ≈26% ITM Gamma 0.013 Theta -0.145 Vega 0.094 Open interest 17 Model this put
74	1	92.3%	0.655	$12.50		$5.30	-0.34	84.5%	2	2
Call · $100 In the money Snapshot session Aug 20, 2026 Last $12.50 Breakeven $112.50 Implied vol 92.3% Delta 0.655 ≈66% ITM Gamma 0.014 Theta -0.189 Vega 0.111 Open interest 74 Model this call Put · $100 Snapshot session Aug 18, 2026 Last $5.30 Breakeven $94.70 Implied vol 84.5% Delta -0.34 ≈34% ITM Gamma 0.015 Theta -0.163 Vega 0.111 Open interest 2 Model this put
8	2	94.3%	0.582	$11.30		$8.55	-0.422	78%	1	16
Call · $105 In the money Snapshot session Aug 21, 2026 Last $11.30 Breakeven $116.30 Implied vol 94.3% Delta 0.582 ≈58% ITM Gamma 0.014 Theta -0.204 Vega 0.114 Open interest 8 Model this call Put · $105 Snapshot session Aug 21, 2026 Last $8.55 Breakeven $96.45 Implied vol 78% Delta -0.422 ≈42% ITM Gamma 0.017 Theta -0.16 Vega 0.114 Open interest 16 Model this put
Underlying $107.96
2	5	91.4%	0.508	$8.90		$10.05	-0.51	76%	2	21
Call · $110 Snapshot session Aug 21, 2026 Last $8.90 Breakeven $118.90 Implied vol 91.4% Delta 0.508 ≈51% ITM Gamma 0.015 Theta -0.201 Vega 0.117 Open interest 2 Model this call Put · $110 In the money Snapshot session Aug 18, 2026 Last $10.05 Breakeven $99.95 Implied vol 76% Delta -0.51 ≈51% ITM Gamma 0.018 Theta -0.157 Vega 0.117 Open interest 21 Model this put
9	3	90.7%	0.435	$6.40		$14.20	-0.584	81.9%	3	6
Call · $115 Snapshot session Aug 20, 2026 Last $6.40 Breakeven $121.40 Implied vol 90.7% Delta 0.435 ≈44% ITM Gamma 0.015 Theta -0.197 Vega 0.12 Open interest 9 Model this call Put · $115 In the money Snapshot session Aug 20, 2026 Last $14.20 Breakeven $100.80 Implied vol 81.9% Delta -0.584 ≈58% ITM Gamma 0.017 Theta -0.167 Vega 0.12 Open interest 6 Model this put
17	1	88.5%	0.365	$7.10		—	-0.655	81.6%	—	0
Call · $120 Snapshot session Aug 17, 2026 Last $7.10 Breakeven $127.10 Implied vol 88.5% Delta 0.365 ≈37% ITM Gamma 0.015 Theta -0.183 Vega 0.107 Open interest 17 Model this call Put · $120 In the money Snapshot session Unknown Last — Breakeven — Implied vol 81.6% Delta -0.655 ≈66% ITM Gamma 0.016 Theta -0.154 Vega 0.107 Open interest 0 Model this put
8	4	79.2%	0.27	$4.10		—	-0.745	75.8%	—	0
Call · $125 Snapshot session Aug 21, 2026 Last $4.10 Breakeven $129.10 Implied vol 79.2% Delta 0.27 ≈27% ITM Gamma 0.015 Theta -0.145 Vega 0.11 Open interest 8 Model this call Put · $125 In the money Snapshot session Unknown Last — Breakeven — Implied vol 75.8% Delta -0.745 ≈74% ITM Gamma 0.015 Theta -0.125 Vega 0.084 Open interest 0 Model this put
8	7	82.7%	0.23	$3.50		—	-0.826	69.8%	—	0
Call · $130 Snapshot session Aug 11, 2026 Last $3.50 Breakeven $133.50 Implied vol 82.7% Delta 0.23 ≈23% ITM Gamma 0.013 Theta -0.137 Vega 0.086 Open interest 8 Model this call Put · $130 In the money Snapshot session Unknown Last — Breakeven — Implied vol 69.8% Delta -0.826 ≈83% ITM Gamma 0.013 Theta -0.088 Vega 0.085 Open interest 0 Model this put
0	—	86.4%	0.195	—		—	-0.87	70.6%	—	0
Call · $135 Snapshot session Unknown Last — Breakeven — Implied vol 86.4% Delta 0.195 ≈20% ITM Gamma 0.011 Theta -0.13 Vega 0.088 Open interest 0 Model this call Put · $135 In the money Snapshot session Unknown Last — Breakeven — Implied vol 70.6% Delta -0.87 ≈87% ITM Gamma 0.011 Theta -0.072 Vega 0.058 Open interest 0 Model this put
1	1	96.1%	0.187	$2.00		—	-0.916	69.2%	—	0
Call · $140 Snapshot session Aug 12, 2026 Last $2.00 Breakeven $142.00 Implied vol 96.1% Delta 0.187 ≈19% ITM Gamma 0.01 Theta -0.141 Vega 0.089 Open interest 1 Model this call Put · $140 In the money Snapshot session Unknown Last — Breakeven — Implied vol 69.2% Delta -0.916 ≈92% ITM Gamma 0.008 Theta -0.05 Vega 0.055 Open interest 0 Model this put
1	1	79%	0.096	$2.00		—	-0.976	59.3%	—	0
Call · $145 Snapshot session Aug 17, 2026 Last $2.00 Breakeven $147.00 Implied vol 79% Delta 0.096 ≈10% ITM Gamma 0.007 Theta -0.073 Vega 0.061 Open interest 1 Model this call Put · $145 In the money Snapshot session Unknown Last — Breakeven — Implied vol 59.3% Delta -0.976 ≈98% ITM Gamma 0.005 Theta -0.013 Vega 0.014 Open interest 0 Model this put
0	—	79.7%	0.074	—		—	—	—	—	0
Call · $150 Snapshot session Unknown Last — Breakeven — Implied vol 79.7% Delta 0.074 ≈7% ITM Gamma 0.006 Theta -0.061 Vega 0.036 Open interest 0 Model this call Put · $150 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	78.3%	0.052	—		—	—	—	—	0
Call · $155 Snapshot session Unknown Last — Breakeven — Implied vol 78.3% Delta 0.052 ≈5% ITM Gamma 0.005 Theta -0.045 Vega 0.037 Open interest 0 Model this call Put · $155 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	85.1%	0.053	—		—	—	—	—	0
Call · $160 Snapshot session Unknown Last — Breakeven — Implied vol 85.1% Delta 0.053 ≈5% ITM Gamma 0.004 Theta -0.049 Vega 0.037 Open interest 0 Model this call Put · $160 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — 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 16, 2026–Aug 21, 2026; 23 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 907654 CUSIP 687604108 13F (30d) 244 filings 240 filers Visit website Investor relations