LEGN · Legend Biotech Corp

Track LEGN — free

$20.37 +0.10 (+0.49%) At close · Aug 14

Market Cap

$3.95B

193.77M

Options Chain

Underlying $20.37 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 5 days to expiry · 40 contracts · mixed snapshot sessions · Jun 2, 2026–Aug 14, 2026; 12 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 Nov 20 96d Dec 18 124d Jan 15 152d Feb 19 187d Mar 19 215d Dec 17 488d Jan 21 523d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	—	—	—		—	—	—	—	0
Call · $2.5 In the money Snapshot session Unknown Last — Breakeven — 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 · $5 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	—	—	—		—	—	—	—	0
Call · $7.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $7.5 Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	2	—	—	$24.58		$0.03	—	—	4	4
Call · $10 In the money Snapshot session Jun 2, 2026 Last $24.58 Breakeven $34.58 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $10 Snapshot session Jul 27, 2026 Last $0.03 Breakeven $9.97 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 Model this put
3	1	—	—	$6.40		$0.05	—	—	37	34
Call · $12.5 In the money Snapshot session Jul 30, 2026 Last $6.40 Breakeven $18.90 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this call Put · $12.5 Snapshot session Jul 27, 2026 Last $0.05 Breakeven $12.45 Implied vol — Delta — Gamma — Theta — Vega — Open interest 34 Model this put
16	1	—	—	$6.37		$0.17	-0.121	240.9%	200	212
Call · $15 In the money Snapshot session Aug 12, 2026 Last $6.37 Breakeven $21.37 Implied vol — Delta — Gamma — Theta — Vega — Open interest 16 Model this call Put · $15 Snapshot session Jul 27, 2026 Last $0.17 Breakeven $14.83 Implied vol 240.9% Delta -0.121 ≈12% ITM Gamma 0.033 Theta -0.109 Vega 0.006 Open interest 212 Model this put
20	3	90.4%	0.919	$3.60		$0.05	-0.098	98.9%	4	427
Call · $17.5 In the money Snapshot session Aug 11, 2026 Last $3.60 Breakeven $21.10 Implied vol 90.4% Delta 0.919 ≈92% ITM Gamma 0.065 Theta -0.032 Vega 0.004 Open interest 20 Model this call Put · $17.5 Snapshot session Aug 14, 2026 Last $0.05 Breakeven $17.45 Implied vol 98.9% Delta -0.098 ≈10% ITM Gamma 0.069 Theta -0.038 Vega 0.004 Open interest 427 Model this put
930	57	79.5%	0.591	$0.87		$0.50	-0.385	55.5%	53	805
Call · $20 In the money Snapshot session Aug 13, 2026 Last $0.87 Breakeven $20.87 Implied vol 79.5% Delta 0.591 ≈59% ITM Gamma 0.194 Theta -0.071 Vega 0.01 Open interest 930 Model this call Put · $20 Snapshot session Aug 14, 2026 Last $0.50 Breakeven $19.50 Implied vol 55.5% Delta -0.385 ≈39% ITM Gamma 0.274 Theta -0.047 Vega 0.01 Open interest 805 Model this put
Underlying $20.37
1.6k	289	71.8%	0.139	$0.10		$2.25	-0.828	80.8%	3	957
Call · $22.5 Snapshot session Aug 14, 2026 Last $0.10 Breakeven $22.60 Implied vol 71.8% Delta 0.139 ≈14% ITM Gamma 0.124 Theta -0.036 Vega 0.005 Open interest 1.6k Model this call Put · $22.5 In the money Snapshot session Aug 14, 2026 Last $2.25 Breakeven $20.25 Implied vol 80.8% Delta -0.828 ≈83% ITM Gamma 0.126 Theta -0.045 Vega 0.007 Open interest 957 Model this put
2.5k	30	105.3%	0.066	$0.02		$5.85	-0.904	120.5%	2	613
Call · $25 Snapshot session Aug 14, 2026 Last $0.02 Breakeven $25.02 Implied vol 105.3% Delta 0.066 ≈7% ITM Gamma 0.048 Theta -0.031 Vega 0.003 Open interest 2.5k Model this call Put · $25 In the money Snapshot session Jul 27, 2026 Last $5.85 Breakeven $19.15 Implied vol 120.5% Delta -0.904 ≈90% ITM Gamma 0.057 Theta -0.044 Vega 0.005 Open interest 613 Model this put
403	10	149.3%	0.064	$0.20		$8.80	-0.913	167.5%	6	2
Call · $27.5 Snapshot session Aug 5, 2026 Last $0.20 Breakeven $27.70 Implied vol 149.3% Delta 0.064 ≈6% ITM Gamma 0.033 Theta -0.042 Vega 0.003 Open interest 403 Model this call Put · $27.5 In the money Snapshot session Aug 3, 2026 Last $8.80 Breakeven $18.70 Implied vol 167.5% Delta -0.913 ≈91% ITM Gamma 0.038 Theta -0.058 Vega 0.005 Open interest 2 Model this put
1.1k	1	401.7%	0.299	$0.05		$3.19	-0.925	201.1%	1	12
Call · $30 Snapshot session Aug 14, 2026 Last $0.05 Breakeven $30.05 Implied vol 401.7% Delta 0.299 ≈30% ITM Gamma 0.034 Theta -0.317 Vega 0.008 Open interest 1.1k Model this call Put · $30 In the money Snapshot session Jun 29, 2026 Last $3.19 Breakeven $26.81 Implied vol 201.1% Delta -0.925 ≈92% ITM Gamma 0.028 Theta -0.062 Vega 0.003 Open interest 12 Model this put
223	6	202.4%	0.039	$0.05		—	-0.932	230.4%	—	0
Call · $32.5 Snapshot session Jul 31, 2026 Last $0.05 Breakeven $32.55 Implied vol 202.4% Delta 0.039 ≈4% ITM Gamma 0.017 Theta -0.039 Vega 0.002 Open interest 223 Model this call Put · $32.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 230.4% Delta -0.932 ≈93% ITM Gamma 0.023 Theta -0.065 Vega 0.003 Open interest 0 Model this put
252	1	388.9%	0.187	$0.10		$11.45	-0.938	257.5%	2	59
Call · $35 Snapshot session Jul 30, 2026 Last $0.10 Breakeven $35.10 Implied vol 388.9% Delta 0.187 ≈19% ITM Gamma 0.028 Theta -0.238 Vega 0.006 Open interest 252 Model this call Put · $35 In the money Snapshot session Jul 21, 2026 Last $11.45 Breakeven $23.55 Implied vol 257.5% Delta -0.938 ≈94% ITM Gamma 0.019 Theta -0.068 Vega 0.003 Open interest 59 Model this put
283	3	356.8%	0.124	$0.05		$5.66	-0.942	282.9%	28	0
Call · $37.5 Snapshot session Aug 6, 2026 Last $0.05 Breakeven $37.55 Implied vol 356.8% Delta 0.124 ≈12% ITM Gamma 0.023 Theta -0.164 Vega 0.006 Open interest 283 Model this call Put · $37.5 In the money Snapshot session Jun 4, 2026 Last $5.66 Breakeven $31.84 Implied vol 282.9% Delta -0.942 ≈94% ITM Gamma 0.016 Theta -0.071 Vega 0.003 Open interest 0 Model this put
75	1	309.7%	0.058	$0.15		—	-0.945	306.6%	—	0
Call · $40 Snapshot session Jul 15, 2026 Last $0.15 Breakeven $40.15 Implied vol 309.7% Delta 0.058 ≈6% ITM Gamma 0.015 Theta -0.081 Vega 0.004 Open interest 75 Model this call Put · $40 In the money Snapshot session Unknown Last — Breakeven — Implied vol 306.6% Delta -0.945 ≈95% ITM Gamma 0.014 Theta -0.073 Vega 0.004 Open interest 0 Model this put
4	2	521.9%	0.207	$0.15		—	-0.948	328.9%	—	0
Call · $42.5 Snapshot session Jul 15, 2026 Last $0.15 Breakeven $42.65 Implied vol 521.9% Delta 0.207 ≈21% ITM Gamma 0.022 Theta -0.338 Vega 0.006 Open interest 4 Model this call Put · $42.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 328.9% Delta -0.948 ≈95% ITM Gamma 0.013 Theta -0.076 Vega 0.004 Open interest 0 Model this put
1	5	432.6%	0.11	$0.45		—	-0.95	350%	—	0
Call · $45 Snapshot session Jul 9, 2026 Last $0.45 Breakeven $45.45 Implied vol 432.6% Delta 0.11 ≈11% ITM Gamma 0.017 Theta -0.184 Vega 0.004 Open interest 1 Model this call Put · $45 In the money Snapshot session Unknown Last — Breakeven — Implied vol 350% Delta -0.95 ≈95% ITM Gamma 0.012 Theta -0.079 Vega 0.004 Open interest 0 Model this put
1	1	450.4%	0.106	$0.40		—	-0.952	368.4%	—	0
Call · $47.5 Snapshot session Jul 9, 2026 Last $0.40 Breakeven $47.90 Implied vol 450.4% Delta 0.106 ≈11% ITM Gamma 0.016 Theta -0.187 Vega 0.004 Open interest 1 Model this call Put · $47.5 In the money Snapshot session Unknown Last — Breakeven — Implied vol 368.4% Delta -0.952 ≈95% ITM Gamma 0.011 Theta -0.081 Vega 0.002 Open interest 0 Model this put
26	9	644.2%	0.232	$0.01		—	-0.953	384%	—	0
Call · $50 Snapshot session Jul 21, 2026 Last $0.01 Breakeven $50.01 Implied vol 644.2% Delta 0.232 ≈23% ITM Gamma 0.019 Theta -0.447 Vega 0.006 Open interest 26 Model this call Put · $50 In the money Snapshot session Unknown Last — Breakeven — Implied vol 384% Delta -0.953 ≈95% ITM Gamma 0.01 Theta -0.082 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 · Jun 2, 2026–Aug 14, 2026; 12 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 1801198 CUSIP 52490G102 13F (30d) 222 filings 208 filers Visit website Investor relations