HALO · Halozyme Therapeutics, Inc.

Track HALO — free

$98.66 -2.01 (-2.00%) At close · Aug 14

Market Cap

$11.20B

113.50M

Options Chain

Underlying $98.66 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 5 days to expiry · 48 contracts · mixed snapshot sessions · Aug 5, 2026–Aug 14, 2026; 24 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 Sep 18 33d Dec 18 124d Mar 19 215d Dec 17 488d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	470.7%	0.983	—		$0.04	—	—	1	6
Call · $35 In the money Snapshot session Unknown Last — Breakeven — Implied vol 470.7% Delta 0.983 ≈98% ITM Gamma 0.001 Theta -0.226 Vega 0.007 Open interest 0 Model this call Put · $35 Snapshot session Aug 11, 2026 Last $0.04 Breakeven $34.96 Implied vol — Delta — Gamma — Theta — Vega — Open interest 6 Model this put
0	—	433%	0.976	—		$1.48	—	—	1	1
Call · $40 In the money Snapshot session Unknown Last — Breakeven — Implied vol 433% Delta 0.976 ≈98% ITM Gamma 0.001 Theta -0.273 Vega 0.008 Open interest 0 Model this call Put · $40 Snapshot session Aug 7, 2026 Last $1.48 Breakeven $38.52 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
0	—	393.6%	0.97	—		$0.04	—	—	4	0
Call · $45 In the money Snapshot session Unknown Last — Breakeven — Implied vol 393.6% Delta 0.97 ≈97% ITM Gamma 0.001 Theta -0.303 Vega 0.008 Open interest 0 Model this call Put · $45 Snapshot session Aug 6, 2026 Last $0.04 Breakeven $44.96 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	317.5%	0.975	—		—	-0.025	317.7%	—	0
Call · $50 In the money Snapshot session Unknown Last — Breakeven — Implied vol 317.5% Delta 0.975 ≈97% ITM Gamma 0.002 Theta -0.211 Vega 0.009 Open interest 0 Model this call Put · $50 Snapshot session Unknown Last — Breakeven — Implied vol 317.7% Delta -0.025 ≈3% ITM Gamma 0.002 Theta -0.206 Vega 0.009 Open interest 0 Model this put
0	—	299.2%	0.963	—		—	-0.029	277.4%	—	0
Call · $55 In the money Snapshot session Unknown Last — Breakeven — Implied vol 299.2% Delta 0.963 ≈96% ITM Gamma 0.002 Theta -0.274 Vega 0.009 Open interest 0 Model this call Put · $55 Snapshot session Unknown Last — Breakeven — Implied vol 277.4% Delta -0.029 ≈3% ITM Gamma 0.002 Theta -0.201 Vega 0.009 Open interest 0 Model this put
0	—	240%	0.967	—		$0.05	-0.014	196%	2	12
Call · $60 In the money Snapshot session Unknown Last — Breakeven — Implied vol 240% Delta 0.967 ≈97% ITM Gamma 0.003 Theta -0.199 Vega 0.009 Open interest 0 Model this call Put · $60 Snapshot session Aug 6, 2026 Last $0.05 Breakeven $59.95 Implied vol 196% Delta -0.014 ≈1% ITM Gamma 0.001 Theta -0.075 Vega 0.005 Open interest 12 Model this put
232	290	226.5%	0.951	$18.85		$0.12	-0.024	186.8%	1	17
Call · $65 In the money Snapshot session Aug 5, 2026 Last $18.85 Breakeven $83.85 Implied vol 226.5% Delta 0.951 ≈95% ITM Gamma 0.004 Theta -0.262 Vega 0.01 Open interest 232 Model this call Put · $65 Snapshot session Aug 10, 2026 Last $0.12 Breakeven $64.88 Implied vol 186.8% Delta -0.024 ≈2% ITM Gamma 0.003 Theta -0.12 Vega 0.01 Open interest 17 Model this put
52	25	192.9%	0.944	$29.08		$0.05	-0.019	141.1%	8	149
Call · $70 In the money Snapshot session Aug 7, 2026 Last $29.08 Breakeven $99.08 Implied vol 192.9% Delta 0.944 ≈94% ITM Gamma 0.005 Theta -0.252 Vega 0.018 Open interest 52 Model this call Put · $70 Snapshot session Aug 7, 2026 Last $0.05 Breakeven $69.95 Implied vol 141.1% Delta -0.019 ≈2% ITM Gamma 0.003 Theta -0.071 Vega 0.005 Open interest 149 Model this put
26	1	167.5%	0.924	$26.43		$0.04	-0.084	175.2%	1	2.8k
Call · $75 In the money Snapshot session Aug 12, 2026 Last $26.43 Breakeven $101.43 Implied vol 167.5% Delta 0.924 ≈92% ITM Gamma 0.007 Theta -0.273 Vega 0.018 Open interest 26 Model this call Put · $75 Snapshot session Aug 14, 2026 Last $0.04 Breakeven $74.96 Implied vol 175.2% Delta -0.084 ≈8% ITM Gamma 0.007 Theta -0.3 Vega 0.018 Open interest 2.8k Model this put
299	4	125.4%	0.924	$20.65		$0.54	-0.042	102.2%	3	124
Call · $80 In the money Snapshot session Aug 13, 2026 Last $20.65 Breakeven $100.65 Implied vol 125.4% Delta 0.924 ≈92% ITM Gamma 0.01 Theta -0.206 Vega 0.019 Open interest 299 Model this call Put · $80 Snapshot session Aug 10, 2026 Last $0.54 Breakeven $79.46 Implied vol 102.2% Delta -0.042 ≈4% ITM Gamma 0.007 Theta -0.101 Vega 0.011 Open interest 124 Model this put
2.9k	10	106.4%	0.885	$13.59		$0.22	-0.066	83%	2	5
Call · $85 In the money Snapshot session Aug 14, 2026 Last $13.59 Breakeven $98.59 Implied vol 106.4% Delta 0.885 ≈89% ITM Gamma 0.016 Theta -0.239 Vega 0.02 Open interest 2.9k Model this call Put · $85 Snapshot session Aug 7, 2026 Last $0.22 Breakeven $84.78 Implied vol 83% Delta -0.066 ≈7% ITM Gamma 0.013 Theta -0.118 Vega 0.019 Open interest 5 Model this put
2.9k	4	72.6%	0.852	$10.10		$0.25	-0.124	65.9%	5	5
Call · $90 In the money Snapshot session Aug 13, 2026 Last $10.10 Breakeven $100.10 Implied vol 72.6% Delta 0.852 ≈85% ITM Gamma 0.027 Theta -0.194 Vega 0.03 Open interest 2.9k Model this call Put · $90 Snapshot session Aug 7, 2026 Last $0.25 Breakeven $89.75 Implied vol 65.9% Delta -0.124 ≈12% ITM Gamma 0.026 Theta -0.151 Vega 0.03 Open interest 5 Model this put
59	4	64.3%	0.683	$4.73		$0.60	-0.258	45.1%	3	44
Call · $95 In the money Snapshot session Aug 14, 2026 Last $4.73 Breakeven $99.73 Implied vol 64.3% Delta 0.683 ≈68% ITM Gamma 0.047 Theta -0.263 Vega 0.041 Open interest 59 Model this call Put · $95 Snapshot session Aug 13, 2026 Last $0.60 Breakeven $94.40 Implied vol 45.1% Delta -0.258 ≈26% ITM Gamma 0.06 Theta -0.16 Vega 0.04 Open interest 44 Model this put
Underlying $98.66
70	12	41.5%	0.375	$1.15		$2.55	-0.711	25%	9	17
Call · $100 Snapshot session Aug 14, 2026 Last $1.15 Breakeven $101.15 Implied vol 41.5% Delta 0.375 ≈38% ITM Gamma 0.078 Theta -0.181 Vega 0.048 Open interest 70 Model this call Put · $100 In the money Snapshot session Aug 14, 2026 Last $2.55 Breakeven $97.45 Implied vol 25% Delta -0.711 ≈71% ITM Gamma 0.117 Theta -0.089 Vega 0.042 Open interest 17 Model this put
228	19	43.3%	0.11	$0.16		$5.34	—	—	1	12
Call · $105 Snapshot session Aug 14, 2026 Last $0.16 Breakeven $105.16 Implied vol 43.3% Delta 0.11 ≈11% ITM Gamma 0.036 Theta -0.092 Vega 0.022 Open interest 228 Model this call Put · $105 In the money Snapshot session Aug 14, 2026 Last $5.34 Breakeven $99.66 Implied vol — Delta — Gamma — Theta — Vega — Open interest 12 Model this put
6	3	89.3%	0.161	$0.08		—	—	—	—	0
Call · $110 Snapshot session Aug 14, 2026 Last $0.08 Breakeven $110.08 Implied vol 89.3% Delta 0.161 ≈16% ITM Gamma 0.023 Theta -0.246 Vega 0.034 Open interest 6 Model this call Put · $110 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $115 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $115 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $120 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $120 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		$21.70	—	—	2	0
Call · $125 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $125 In the money Snapshot session Aug 10, 2026 Last $21.70 Breakeven $103.30 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $130 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $130 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $135 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $135 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $140 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $140 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $145 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $145 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $150 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — 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

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 · Aug 5, 2026–Aug 14, 2026; 24 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 1159036 CUSIP 40637H109 13F (30d) 595 filings 579 filers Visit website Investor relations