KALU · Kaiser Aluminum Corp

Track KALU — free

$181.73 -1.02 (-0.56%) At close · Aug 14

Market Cap

$2.99B

16.35M

Options Chain

Underlying $181.73 · at close Aug 14, 2026 Options Calculator

Positioning

Aug 21, 2026 · 6 days to expiry · 50 contracts · mixed snapshot sessions · Jul 23, 2026–Aug 13, 2026; 26 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 6d Sep 18 34d Nov 20 97d Dec 18 125d Mar 19 216d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
0	—	152.4%	0.991	—		—	-0.025	189%	—	0
Call · $115 In the money Snapshot session Unknown Last — Breakeven — Implied vol 152.4% Delta 0.991 ≈99% ITM Gamma 0.001 Theta -0.066 Vega 0.004 Open interest 0 Model this call Put · $115 Snapshot session Unknown Last — Breakeven — Implied vol 189% Delta -0.025 ≈2% ITM Gamma 0.001 Theta -0.205 Vega 0.02 Open interest 0 Model this put
0	—	108.3%	0.998	—		—	-0.036	185.6%	—	0
Call · $120 In the money Snapshot session Unknown Last — Breakeven — Implied vol 108.3% Delta 0.998 ≈100% ITM Gamma 0 Theta -0.01 Vega 0.002 Open interest 0 Model this call Put · $120 Snapshot session Unknown Last — Breakeven — Implied vol 185.6% Delta -0.036 ≈4% ITM Gamma 0.002 Theta -0.272 Vega 0.02 Open interest 0 Model this put
0	—	—	—	—		—	-0.033	162.8%	—	0
Call · $125 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $125 Snapshot session Unknown Last — Breakeven — Implied vol 162.8% Delta -0.033 ≈3% ITM Gamma 0.002 Theta -0.223 Vega 0.02 Open interest 0 Model this put
0	—	114.5%	0.989	—		$0.50	-0.041	152.9%	1	1
Call · $130 In the money Snapshot session Unknown Last — Breakeven — Implied vol 114.5% Delta 0.989 ≈99% ITM Gamma 0.001 Theta -0.061 Vega 0.01 Open interest 0 Model this call Put · $130 Snapshot session Jul 27, 2026 Last $0.50 Breakeven $129.50 Implied vol 152.9% Delta -0.041 ≈4% ITM Gamma 0.002 Theta -0.247 Vega 0.021 Open interest 1 Model this put
0	—	128.2%	0.966	—		$0.75	-0.053	148.1%	1	1
Call · $135 In the money Snapshot session Unknown Last — Breakeven — Implied vol 128.2% Delta 0.966 ≈97% ITM Gamma 0.002 Theta -0.181 Vega 0.021 Open interest 0 Model this call Put · $135 Snapshot session Jul 23, 2026 Last $0.75 Breakeven $134.25 Implied vol 148.1% Delta -0.053 ≈5% ITM Gamma 0.003 Theta -0.3 Vega 0.021 Open interest 1 Model this put
0	—	0%	1	—		—	-0.044	120.4%	—	0
Call · $140 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0% Delta 1 ≈100% ITM Gamma 0 Theta -0.003 Vega 0 Open interest 0 Model this call Put · $140 Snapshot session Unknown Last — Breakeven — Implied vol 120.4% Delta -0.044 ≈4% ITM Gamma 0.003 Theta -0.208 Vega 0.022 Open interest 0 Model this put
0	—	—	—	—		$3.70	-0.055	111.9%	1	4
Call · $145 In the money Snapshot session Unknown Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this call Put · $145 Snapshot session Jul 29, 2026 Last $3.70 Breakeven $141.30 Implied vol 111.9% Delta -0.055 ≈5% ITM Gamma 0.004 Theta -0.232 Vega 0.022 Open interest 4 Model this put
4	2	88.8%	0.953	$50.00		$5.40	-0.094	116%	2	4
Call · $150 In the money Snapshot session Aug 12, 2026 Last $50.00 Breakeven $200.00 Implied vol 88.8% Delta 0.953 ≈95% ITM Gamma 0.004 Theta -0.164 Vega 0.022 Open interest 4 Model this call Put · $150 Snapshot session Jul 29, 2026 Last $5.40 Breakeven $144.60 Implied vol 116% Delta -0.094 ≈9% ITM Gamma 0.006 Theta -0.363 Vega 0.039 Open interest 4 Model this put
0	—	0%	1	—		$0.28	-0.054	77%	3	4
Call · $155 In the money Snapshot session Unknown Last — Breakeven — Implied vol 0% Delta 1 ≈100% ITM Gamma 0 Theta -0.005 Vega 0 Open interest 0 Model this call Put · $155 Snapshot session Aug 12, 2026 Last $0.28 Breakeven $154.72 Implied vol 77% Delta -0.054 ≈5% ITM Gamma 0.006 Theta -0.157 Vega 0.023 Open interest 4 Model this put
2	1	56%	0.959	$6.94		$7.50	-0.165	105.1%	3	6
Call · $160 In the money Snapshot session Aug 3, 2026 Last $6.94 Breakeven $166.94 Implied vol 56% Delta 0.959 ≈96% ITM Gamma 0.006 Theta -0.095 Vega 0.023 Open interest 2 Model this call Put · $160 Snapshot session Jul 29, 2026 Last $7.50 Breakeven $152.50 Implied vol 105.1% Delta -0.165 ≈16% ITM Gamma 0.01 Theta -0.485 Vega 0.06 Open interest 6 Model this put
12	1	40.4%	0.967	$4.00		$3.90	-0.189	88%	1	1
Call · $165 In the money Snapshot session Jul 31, 2026 Last $4.00 Breakeven $169.00 Implied vol 40.4% Delta 0.967 ≈97% ITM Gamma 0.007 Theta -0.061 Vega 0.024 Open interest 12 Model this call Put · $165 Snapshot session Aug 4, 2026 Last $3.90 Breakeven $161.10 Implied vol 88% Delta -0.189 ≈19% ITM Gamma 0.013 Theta -0.445 Vega 0.061 Open interest 1 Model this put
24	2	39.9%	0.9	$11.20		$0.65	-0.12	44%	2	6
Call · $170 In the money Snapshot session Aug 7, 2026 Last $11.20 Breakeven $181.20 Implied vol 39.9% Delta 0.9 ≈90% ITM Gamma 0.018 Theta -0.136 Vega 0.041 Open interest 24 Model this call Put · $170 Snapshot session Aug 13, 2026 Last $0.65 Breakeven $169.35 Implied vol 44% Delta -0.12 ≈12% ITM Gamma 0.019 Theta -0.165 Vega 0.041 Open interest 6 Model this put
10	1	42.9%	0.755	$11.60		$0.76	-0.29	54.7%	3	3
Call · $175 In the money Snapshot session Aug 7, 2026 Last $11.60 Breakeven $186.60 Implied vol 42.9% Delta 0.755 ≈76% ITM Gamma 0.03 Theta -0.258 Vega 0.082 Open interest 10 Model this call Put · $175 Snapshot session Aug 12, 2026 Last $0.76 Breakeven $174.24 Implied vol 54.7% Delta -0.29 ≈29% ITM Gamma 0.026 Theta -0.348 Vega 0.083 Open interest 3 Model this put
24	11	41.3%	0.581	$11.20		$9.62	-0.426	47.3%	4	4
Call · $180 In the money Snapshot session Aug 12, 2026 Last $11.20 Breakeven $191.20 Implied vol 41.3% Delta 0.581 ≈58% ITM Gamma 0.039 Theta -0.305 Vega 0.096 Open interest 24 Model this call Put · $180 Snapshot session Jul 23, 2026 Last $9.62 Breakeven $170.38 Implied vol 47.3% Delta -0.426 ≈43% ITM Gamma 0.034 Theta -0.344 Vega 0.096 Open interest 4 Model this put
Underlying $181.73
39	3	46.1%	0.399	$9.30		$3.25	-0.623	39.1%	1	11
Call · $185 Snapshot session Aug 11, 2026 Last $9.30 Breakeven $194.30 Implied vol 46.1% Delta 0.399 ≈40% ITM Gamma 0.035 Theta -0.337 Vega 0.097 Open interest 39 Model this call Put · $185 In the money Snapshot session Aug 12, 2026 Last $3.25 Breakeven $181.75 Implied vol 39.1% Delta -0.623 ≈62% ITM Gamma 0.041 Theta -0.277 Vega 0.097 Open interest 11 Model this put
15	2	57.1%	0.295	$3.70		—	-0.767	44.1%	—	0
Call · $190 Snapshot session Jul 24, 2026 Last $3.70 Breakeven $193.70 Implied vol 57.1% Delta 0.295 ≈30% ITM Gamma 0.025 Theta -0.371 Vega 0.086 Open interest 15 Model this call Put · $190 In the money Snapshot session Unknown Last — Breakeven — Implied vol 44.1% Delta -0.767 ≈77% ITM Gamma 0.029 Theta -0.25 Vega 0.066 Open interest 0 Model this put
4	1	73.1%	0.249	$8.20		—	-0.9	40.3%	—	0
Call · $195 Snapshot session Aug 12, 2026 Last $8.20 Breakeven $203.20 Implied vol 73.1% Delta 0.249 ≈25% ITM Gamma 0.018 Theta -0.441 Vega 0.087 Open interest 4 Model this call Put · $195 In the money Snapshot session Unknown Last — Breakeven — Implied vol 40.3% Delta -0.9 ≈90% ITM Gamma 0.018 Theta -0.126 Vega 0.044 Open interest 0 Model this put
2	1	84.9%	0.217	$2.50		—	-0.93	48.5%	—	0
Call · $200 Snapshot session Aug 7, 2026 Last $2.50 Breakeven $202.50 Implied vol 84.9% Delta 0.217 ≈22% ITM Gamma 0.014 Theta -0.468 Vega 0.068 Open interest 2 Model this call Put · $200 In the money Snapshot session Unknown Last — Breakeven — Implied vol 48.5% Delta -0.93 ≈93% ITM Gamma 0.012 Theta -0.118 Vega 0.026 Open interest 0 Model this put
0	—	74.7%	0.078	—		—	-0.964	60.2%	—	0
Call · $210 Snapshot session Unknown Last — Breakeven — Implied vol 74.7% Delta 0.078 ≈8% ITM Gamma 0.008 Theta -0.206 Vega 0.046 Open interest 0 Model this call Put · $210 In the money Snapshot session Unknown Last — Breakeven — Implied vol 60.2% Delta -0.964 ≈96% ITM Gamma 0.006 Theta -0.084 Vega 0.026 Open interest 0 Model this put
0	—	102.5%	0.092	—		—	-0.976	71.8%	—	0
Call · $220 Snapshot session Unknown Last — Breakeven — Implied vol 102.5% Delta 0.092 ≈9% ITM Gamma 0.007 Theta -0.316 Vega 0.047 Open interest 0 Model this call Put · $220 In the money Snapshot session Unknown Last — Breakeven — Implied vol 71.8% Delta -0.976 ≈98% ITM Gamma 0.003 Theta -0.07 Vega 0.013 Open interest 0 Model this put
0	—	100%	0.044	—		—	-0.979	85.6%	—	0
Call · $230 Snapshot session Unknown Last — Breakeven — Implied vol 100% Delta 0.044 ≈4% ITM Gamma 0.004 Theta -0.173 Vega 0.028 Open interest 0 Model this call Put · $230 In the money Snapshot session Unknown Last — Breakeven — Implied vol 85.6% Delta -0.979 ≈98% ITM Gamma 0.003 Theta -0.073 Vega 0.013 Open interest 0 Model this put
0	—	115%	0.039	—		—	-0.977	102.4%	—	0
Call · $240 Snapshot session Unknown Last — Breakeven — Implied vol 115% Delta 0.039 ≈4% ITM Gamma 0.003 Theta -0.183 Vega 0.029 Open interest 0 Model this call Put · $240 In the money Snapshot session Unknown Last — Breakeven — Implied vol 102.4% Delta -0.977 ≈98% ITM Gamma 0.002 Theta -0.097 Vega 0.014 Open interest 0 Model this put
0	—	131.1%	0.039	—		$85.50	—	—	1	0
Call · $250 Snapshot session Unknown Last — Breakeven — Implied vol 131.1% Delta 0.039 ≈4% ITM Gamma 0.003 Theta -0.207 Vega 0.029 Open interest 0 Model this call Put · $250 In the money Snapshot session Jul 27, 2026 Last $85.50 Breakeven $164.50 Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
0	—	150%	0.044	—		$95.50	-0.98	127.1%	1	0
Call · $260 Snapshot session Unknown Last — Breakeven — Implied vol 150% Delta 0.044 ≈4% ITM Gamma 0.003 Theta -0.261 Vega 0.03 Open interest 0 Model this call Put · $260 In the money Snapshot session Jul 27, 2026 Last $95.50 Breakeven $164.50 Implied vol 127.1% Delta -0.98 ≈98% ITM Gamma 0.002 Theta -0.104 Vega 0.014 Open interest 0 Model this put
0	—	158.2%	0.036	—		$105.50	-0.969	152.4%	1	0
Call · $270 Snapshot session Unknown Last — Breakeven — Implied vol 158.2% Delta 0.036 ≈4% ITM Gamma 0.002 Theta -0.236 Vega 0.015 Open interest 0 Model this call Put · $270 In the money Snapshot session Jul 27, 2026 Last $105.50 Breakeven $164.50 Implied vol 152.4% Delta -0.969 ≈97% ITM Gamma 0.002 Theta -0.188 Vega 0.015 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 23, 2026–Aug 13, 2026; 26 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 811596 CUSIP 483007704 13F (30d) 313 filings 306 filers Visit website Investor relations