AMLX · Amylyx Pharmaceuticals, Inc.

Track AMLX — free

$21.63 -0.85 (-3.78%) At close · Aug 14

Market Cap

$2.41B

111.42M

Options Chain

Underlying $21.63 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 5 days to expiry · 66 contracts · mixed snapshot sessions · Dec 18, 2025–Aug 14, 2026; 15 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

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	805.7%	0.994	—		$0.15	-0.007	843.1%	1	38
Call · $3 In the money Snapshot session Unknown Last — Breakeven — Implied vol 805.7% Delta 0.994 ≈99% ITM Gamma 0.001 Theta -0.033 Vega 0 Open interest 0 Model this call Put · $3 Snapshot session Jul 29, 2026 Last $0.15 Breakeven $2.85 Implied vol 843.1% Delta -0.007 ≈1% ITM Gamma 0.001 Theta -0.04 Vega 0 Open interest 38 Model this put
0	—	686.5%	0.993	—		$0.40	-0.032	1406.2%	2	27
Call · $4 In the money Snapshot session Unknown Last — Breakeven — Implied vol 686.5% Delta 0.993 ≈99% ITM Gamma 0.001 Theta -0.033 Vega 0.001 Open interest 0 Model this call Put · $4 Snapshot session Aug 7, 2026 Last $0.40 Breakeven $3.60 Implied vol 1406.2% Delta -0.032 ≈3% ITM Gamma 0.002 Theta -0.251 Vega 0.002 Open interest 27 Model this put
1	1	833.2%	0.976	$7.50		$0.10	-0.014	684.1%	205	594
Call · $5 In the money Snapshot session Dec 18, 2025 Last $7.50 Breakeven $12.50 Implied vol 833.2% Delta 0.976 ≈98% ITM Gamma 0.003 Theta -0.118 Vega 0.002 Open interest 1 Model this call Put · $5 Snapshot session Aug 10, 2026 Last $0.10 Breakeven $4.90 Implied vol 684.1% Delta -0.014 ≈1% ITM Gamma 0.002 Theta -0.06 Vega 0.001 Open interest 594 Model this put
0	—	524.4%	0.991	—		$0.05	-0.028	729.7%	2	22
Call · $6 In the money Snapshot session Unknown Last — Breakeven — Implied vol 524.4% Delta 0.991 ≈99% ITM Gamma 0.002 Theta -0.033 Vega 0.001 Open interest 0 Model this call Put · $6 Snapshot session Jul 21, 2026 Last $0.05 Breakeven $5.95 Implied vol 729.7% Delta -0.028 ≈3% ITM Gamma 0.003 Theta -0.116 Vega 0.002 Open interest 22 Model this put
0	—	464.3%	0.989	—		$0.20	-0.035	667.1%	1	61
Call · $7 In the money Snapshot session Unknown Last — Breakeven — Implied vol 464.3% Delta 0.989 ≈99% ITM Gamma 0.002 Theta -0.032 Vega 0.001 Open interest 0 Model this call Put · $7 Snapshot session Jul 22, 2026 Last $0.20 Breakeven $6.80 Implied vol 667.1% Delta -0.035 ≈3% ITM Gamma 0.004 Theta -0.127 Vega 0.002 Open interest 61 Model this put
4	1	412.7%	0.988	$9.60		$0.51	-0.044	622.8%	1	6
Call · $8 In the money Snapshot session Jan 23, 2026 Last $9.60 Breakeven $17.60 Implied vol 412.7% Delta 0.988 ≈99% ITM Gamma 0.003 Theta -0.032 Vega 0.001 Open interest 4 Model this call Put · $8 Snapshot session Aug 4, 2026 Last $0.51 Breakeven $7.49 Implied vol 622.8% Delta -0.044 ≈4% ITM Gamma 0.006 Theta -0.143 Vega 0.003 Open interest 6 Model this put
1	1	498.7%	0.963	$5.10		$0.45	-0.056	592.9%	1	2
Call · $9 In the money Snapshot session Dec 18, 2025 Last $5.10 Breakeven $14.10 Implied vol 498.7% Delta 0.963 ≈96% ITM Gamma 0.006 Theta -0.102 Vega 0.003 Open interest 1 Model this call Put · $9 Snapshot session Jun 16, 2026 Last $0.45 Breakeven $8.55 Implied vol 592.9% Delta -0.056 ≈6% ITM Gamma 0.007 Theta -0.165 Vega 0.003 Open interest 2 Model this put
1	1	394.2%	0.969	$3.70		$1.51	-0.056	500.4%	3	7
Call · $10 In the money Snapshot session Jan 7, 2026 Last $3.70 Breakeven $13.70 Implied vol 394.2% Delta 0.969 ≈97% ITM Gamma 0.007 Theta -0.068 Vega 0.002 Open interest 1 Model this call Put · $10 Snapshot session Jul 17, 2026 Last $1.51 Breakeven $8.49 Implied vol 500.4% Delta -0.056 ≈6% ITM Gamma 0.008 Theta -0.139 Vega 0.003 Open interest 7 Model this put
1	1	458%	0.935	$3.80		$2.55	-0.07	480.1%	1	5
Call · $11 In the money Snapshot session Dec 22, 2025 Last $3.80 Breakeven $14.80 Implied vol 458% Delta 0.935 ≈93% ITM Gamma 0.01 Theta -0.145 Vega 0.003 Open interest 1 Model this call Put · $11 Snapshot session Mar 30, 2026 Last $2.55 Breakeven $8.45 Implied vol 480.1% Delta -0.07 ≈7% ITM Gamma 0.011 Theta -0.161 Vega 0.003 Open interest 5 Model this put
5	1	337.5%	0.954	$10.50		$1.37	-0.071	402.5%	6	1
Call · $12 In the money Snapshot session Aug 4, 2026 Last $10.50 Breakeven $22.50 Implied vol 337.5% Delta 0.954 ≈95% ITM Gamma 0.011 Theta -0.082 Vega 0.003 Open interest 5 Model this call Put · $12 Snapshot session Jul 17, 2026 Last $1.37 Breakeven $10.63 Implied vol 402.5% Delta -0.071 ≈7% ITM Gamma 0.013 Theta -0.134 Vega 0.003 Open interest 1 Model this put
4	2	311.8%	0.941	$6.00		$0.30	-0.088	388.1%	4	7
Call · $13 In the money Snapshot session Jun 25, 2026 Last $6.00 Breakeven $19.00 Implied vol 311.8% Delta 0.941 ≈94% ITM Gamma 0.014 Theta -0.091 Vega 0.004 Open interest 4 Model this call Put · $13 Snapshot session Aug 10, 2026 Last $0.30 Breakeven $12.70 Implied vol 388.1% Delta -0.088 ≈9% ITM Gamma 0.016 Theta -0.156 Vega 0.005 Open interest 7 Model this put
3	1	274.6%	0.933	$5.80		$1.73	-0.089	321%	1	70
Call · $14 In the money Snapshot session Jul 17, 2026 Last $5.80 Breakeven $19.80 Implied vol 274.6% Delta 0.933 ≈93% ITM Gamma 0.018 Theta -0.088 Vega 0.004 Open interest 3 Model this call Put · $14 Snapshot session Aug 4, 2026 Last $1.73 Breakeven $12.27 Implied vol 321% Delta -0.089 ≈9% ITM Gamma 0.019 Theta -0.129 Vega 0.004 Open interest 70 Model this put
2	1	253%	0.916	$5.50		$2.20	-0.107	292.3%	1	153
Call · $15 In the money Snapshot session Jul 17, 2026 Last $5.50 Breakeven $20.50 Implied vol 253% Delta 0.916 ≈92% ITM Gamma 0.023 Theta -0.097 Vega 0.004 Open interest 2 Model this call Put · $15 Snapshot session Aug 4, 2026 Last $2.20 Breakeven $12.80 Implied vol 292.3% Delta -0.107 ≈11% ITM Gamma 0.024 Theta -0.133 Vega 0.006 Open interest 153 Model this put
2	1	241.3%	0.889	$6.50		$0.55	-0.127	262%	2	529
Call · $16 In the money Snapshot session Jul 30, 2026 Last $6.50 Breakeven $22.50 Implied vol 241.3% Delta 0.889 ≈89% ITM Gamma 0.03 Theta -0.115 Vega 0.006 Open interest 2 Model this call Put · $16 Snapshot session Aug 7, 2026 Last $0.55 Breakeven $15.45 Implied vol 262% Delta -0.127 ≈13% ITM Gamma 0.03 Theta -0.134 Vega 0.006 Open interest 529 Model this put
36	40	237.7%	0.845	$7.90		$0.70	-0.152	233.5%	1	70
Call · $17 In the money Snapshot session Aug 6, 2026 Last $7.90 Breakeven $24.90 Implied vol 237.7% Delta 0.845 ≈85% ITM Gamma 0.038 Theta -0.141 Vega 0.006 Open interest 36 Model this call Put · $17 Snapshot session Aug 7, 2026 Last $0.70 Breakeven $16.30 Implied vol 233.5% Delta -0.152 ≈15% ITM Gamma 0.038 Theta -0.135 Vega 0.006 Open interest 70 Model this put
618	2	230.6%	0.8	$6.50		$0.90	-0.206	239.5%	61	104
Call · $18 In the money Snapshot session Aug 12, 2026 Last $6.50 Breakeven $24.50 Implied vol 230.6% Delta 0.8 ≈80% ITM Gamma 0.046 Theta -0.162 Vega 0.008 Open interest 618 Model this call Put · $18 Snapshot session Aug 10, 2026 Last $0.90 Breakeven $17.10 Implied vol 239.5% Delta -0.206 ≈21% ITM Gamma 0.045 Theta -0.169 Vega 0.008 Open interest 104 Model this put
31	3	211%	0.751	$5.79		$1.14	-0.229	184.8%	1	94
Call · $19 In the money Snapshot session Aug 6, 2026 Last $5.79 Breakeven $24.79 Implied vol 211% Delta 0.751 ≈75% ITM Gamma 0.056 Theta -0.166 Vega 0.009 Open interest 31 Model this call Put · $19 Snapshot session Aug 13, 2026 Last $1.14 Breakeven $17.86 Implied vol 184.8% Delta -0.229 ≈23% ITM Gamma 0.062 Theta -0.138 Vega 0.009 Open interest 94 Model this put
367	5	175.4%	0.703	$3.63		$1.31	-0.302	184%	1	9
Call · $20 In the money Snapshot session Aug 13, 2026 Last $3.63 Breakeven $23.63 Implied vol 175.4% Delta 0.703 ≈70% ITM Gamma 0.075 Theta -0.152 Vega 0.009 Open interest 367 Model this call Put · $20 Snapshot session Aug 10, 2026 Last $1.31 Breakeven $18.69 Implied vol 184% Delta -0.302 ≈30% ITM Gamma 0.072 Theta -0.159 Vega 0.009 Open interest 9 Model this put
153	2	179.1%	0.619	$3.50		$1.10	-0.375	152.6%	21	60
Call · $21 In the money Snapshot session Aug 7, 2026 Last $3.50 Breakeven $24.50 Implied vol 179.1% Delta 0.619 ≈62% ITM Gamma 0.08 Theta -0.169 Vega 0.01 Open interest 153 Model this call Put · $21 Snapshot session Aug 14, 2026 Last $1.10 Breakeven $19.90 Implied vol 152.6% Delta -0.375 ≈38% ITM Gamma 0.093 Theta -0.142 Vega 0.01 Open interest 60 Model this put
Underlying $21.63
21	2	199.3%	0.541	$1.13		$1.70	-0.468	168.7%	2	6
Call · $22 Snapshot session Aug 14, 2026 Last $1.13 Breakeven $23.13 Implied vol 199.3% Delta 0.541 ≈54% ITM Gamma 0.076 Theta -0.199 Vega 0.011 Open interest 21 Model this call Put · $22 In the money Snapshot session Aug 13, 2026 Last $1.70 Breakeven $20.30 Implied vol 168.7% Delta -0.468 ≈47% ITM Gamma 0.09 Theta -0.166 Vega 0.011 Open interest 6 Model this put
8	1	192.9%	0.465	$3.38		$2.68	-0.545	179.2%	10	11
Call · $23 Snapshot session Aug 5, 2026 Last $3.38 Breakeven $26.38 Implied vol 192.9% Delta 0.465 ≈47% ITM Gamma 0.077 Theta -0.19 Vega 0.011 Open interest 8 Model this call Put · $23 In the money Snapshot session Aug 7, 2026 Last $2.68 Breakeven $20.32 Implied vol 179.2% Delta -0.545 ≈54% ITM Gamma 0.083 Theta -0.174 Vega 0.011 Open interest 11 Model this put
13	1	124.8%	0.301	$0.77		$5.30	-0.604	197.2%	19	19
Call · $24 Snapshot session Aug 14, 2026 Last $0.77 Breakeven $24.77 Implied vol 124.8% Delta 0.301 ≈30% ITM Gamma 0.105 Theta -0.108 Vega 0.01 Open interest 13 Model this call Put · $24 In the money Snapshot session Aug 4, 2026 Last $5.30 Breakeven $18.70 Implied vol 197.2% Delta -0.604 ≈60% ITM Gamma 0.074 Theta -0.189 Vega 0.01 Open interest 19 Model this put
95	1	142.9%	0.25	$1.50		$4.00	-0.677	187.3%	2	14
Call · $25 Snapshot session Aug 12, 2026 Last $1.50 Breakeven $26.50 Implied vol 142.9% Delta 0.25 ≈25% ITM Gamma 0.084 Theta -0.114 Vega 0.008 Open interest 95 Model this call Put · $25 In the money Snapshot session Aug 6, 2026 Last $4.00 Breakeven $21.00 Implied vol 187.3% Delta -0.677 ≈68% ITM Gamma 0.072 Theta -0.164 Vega 0.01 Open interest 14 Model this put
13	2	239.8%	0.332	$1.52		—	-0.733	192.7%	—	0
Call · $26 Snapshot session Aug 6, 2026 Last $1.52 Breakeven $27.52 Implied vol 239.8% Delta 0.332 ≈33% ITM Gamma 0.057 Theta -0.215 Vega 0.01 Open interest 13 Model this call Put · $26 In the money Snapshot session Unknown Last — Breakeven — Implied vol 192.7% Delta -0.733 ≈73% ITM Gamma 0.065 Theta -0.157 Vega 0.01 Open interest 0 Model this put
7	1	177%	0.196	$1.50		—	-0.769	199.5%	—	0
Call · $27 Snapshot session Aug 5, 2026 Last $1.50 Breakeven $28.50 Implied vol 177% Delta 0.196 ≈20% ITM Gamma 0.058 Theta -0.121 Vega 0.008 Open interest 7 Model this call Put · $27 In the money Snapshot session Unknown Last — Breakeven — Implied vol 199.5% Delta -0.769 ≈77% ITM Gamma 0.057 Theta -0.148 Vega 0.008 Open interest 0 Model this put
193	1	202.5%	0.193	$0.49		—	-0.892	151.5%	—	0
Call · $28 Snapshot session Aug 11, 2026 Last $0.49 Breakeven $28.49 Implied vol 202.5% Delta 0.193 ≈19% ITM Gamma 0.051 Theta -0.137 Vega 0.008 Open interest 193 Model this call Put · $28 In the money Snapshot session Unknown Last — Breakeven — Implied vol 151.5% Delta -0.892 ≈89% ITM Gamma 0.046 Theta -0.067 Vega 0.005 Open interest 0 Model this put
3	1	208.3%	0.161	$0.65		—	-0.9	167.1%	—	0
Call · $29 Snapshot session May 4, 2026 Last $0.65 Breakeven $29.65 Implied vol 208.3% Delta 0.161 ≈16% ITM Gamma 0.045 Theta -0.127 Vega 0.005 Open interest 3 Model this call Put · $29 In the money Snapshot session Unknown Last — Breakeven — Implied vol 167.1% Delta -0.9 ≈90% ITM Gamma 0.04 Theta -0.07 Vega 0.005 Open interest 0 Model this put
6	4	222.8%	0.152	$0.63		—	-0.923	171.1%	—	0
Call · $30 Snapshot session Aug 6, 2026 Last $0.63 Breakeven $30.63 Implied vol 222.8% Delta 0.152 ≈15% ITM Gamma 0.04 Theta -0.13 Vega 0.006 Open interest 6 Model this call Put · $30 In the money Snapshot session Unknown Last — Breakeven — Implied vol 171.1% Delta -0.923 ≈92% ITM Gamma 0.032 Theta -0.059 Vega 0.003 Open interest 0 Model this put
0	—	358.4%	0.282	—		—	-0.871	223.9%	—	0
Call · $31 Snapshot session Unknown Last — Breakeven — Implied vol 358.4% Delta 0.282 ≈28% ITM Gamma 0.036 Theta -0.301 Vega 0.008 Open interest 0 Model this call Put · $31 In the money Snapshot session Unknown Last — Breakeven — Implied vol 223.9% Delta -0.871 ≈87% ITM Gamma 0.035 Theta -0.113 Vega 0.006 Open interest 0 Model this put
15	3	276.9%	0.168	$0.81		—	-0.915	210.5%	—	0
Call · $32 Snapshot session Jul 30, 2026 Last $0.81 Breakeven $32.81 Implied vol 276.9% Delta 0.168 ≈17% ITM Gamma 0.034 Theta -0.173 Vega 0.006 Open interest 15 Model this call Put · $32 In the money Snapshot session Unknown Last — Breakeven — Implied vol 210.5% Delta -0.915 ≈92% ITM Gamma 0.028 Theta -0.079 Vega 0.003 Open interest 0 Model this put
178	3	263.6%	0.134	$0.95		—	-0.934	206.8%	—	0
Call · $33 Snapshot session Jul 31, 2026 Last $0.95 Breakeven $33.95 Implied vol 263.6% Delta 0.134 ≈13% ITM Gamma 0.031 Theta -0.14 Vega 0.006 Open interest 178 Model this call Put · $33 In the money Snapshot session Unknown Last — Breakeven — Implied vol 206.8% Delta -0.934 ≈93% ITM Gamma 0.024 Theta -0.063 Vega 0.003 Open interest 0 Model this put
1	100	288.9%	0.125	$0.15		—	—	—	—	0
Call · $35 Snapshot session Aug 14, 2026 Last $0.15 Breakeven $35.15 Implied vol 288.9% Delta 0.125 ≈13% ITM Gamma 0.027 Theta -0.146 Vega 0.006 Open interest 1 Model this call Put · $35 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
104	2	305.6%	0.077	$0.20		—	—	—	—	0
Call · $40 Snapshot session Aug 10, 2026 Last $0.20 Breakeven $40.20 Implied vol 305.6% Delta 0.077 ≈8% ITM Gamma 0.018 Theta -0.108 Vega 0.004 Open interest 104 Model this call Put · $40 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 · Dec 18, 2025–Aug 14, 2026; 15 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 33" for the wings.

Key facts CIK 1658551 CUSIP 03237H101 13F (30d) 199 filings 197 filers Visit website Investor relations