HAL · Halliburton Co

Track HAL — free Ask ALVIS about HAL

$31.82 -0.54 (-1.67%) At close · Aug 5

Market Cap

$26.51B

833.13M

Options Chain

15-min delayed Underlying $31.82 · at close Aug 5, 2026 Options Calculator

Positioning

Aug 7, 2026 · 1 days to expiry · 76 contracts

Put / call OI

0.53

Call-heavy positioning

Open interest

20,634

contracts outstanding

Volume

5,808

traded today

Max pain

$32.00

$0.18 above spot

ATM implied vol

40.7%

market's expected move

Open interest by strike · near the money

Calls Puts

28.5

29.5

30.5

31.5

32.5

33.5

34.5

35.5

36.5

37.5

38.5

39.5

40.5

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 7 1d Aug 14 8d Aug 21 15d Aug 28 22d Sep 4 29d Sep 11 36d Sep 18 43d Oct 16 71d Dec 18 134d Jan 15 162d Mar 19 225d Jun 17 315d Jan 21 533d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
8	6	—	—	$10.00		—	—	—	—	0
Call · $22 In the money Last $10.00 Breakeven $32.00 Implied vol — Delta — Gamma — Theta — Vega — Open interest 8 Model this call Put · $22 Last — Breakeven — Implied vol — Delta — Gamma — Theta — Vega — Open interest 0 Model this put
5	2	—	—	$9.30		$0.21	—	—	1	1
Call · $23 In the money Last $9.30 Breakeven $32.30 Implied vol — Delta — Gamma — Theta — Vega — Open interest 5 Model this call Put · $23 Last $0.21 Breakeven $22.79 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
19	8	—	—	$8.05		$0.13	-0.094	375.2%	3	1
Call · $24 In the money Last $8.05 Breakeven $32.05 Implied vol — Delta — Gamma — Theta — Vega — Open interest 19 Model this call Put · $24 Last $0.13 Breakeven $23.87 Implied vol 375.2% Delta -0.094 ≈9% ITM Gamma 0.022 Theta -0.428 Vega 0.003 Open interest 1 Model this put
18	8	—	—	$6.96		$0.16	-0.104	336.9%	2	1
Call · $25 In the money Last $6.96 Breakeven $31.96 Implied vol — Delta — Gamma — Theta — Vega — Open interest 18 Model this call Put · $25 Last $0.16 Breakeven $24.84 Implied vol 336.9% Delta -0.104 ≈10% ITM Gamma 0.026 Theta -0.417 Vega 0.003 Open interest 1 Model this put
4	2	224.2%	0.938	$5.92		$0.01	-0.116	298.6%	11	11
Call · $26 In the money Last $5.92 Breakeven $31.92 Implied vol 224.2% Delta 0.938 ≈94% ITM Gamma 0.026 Theta -0.188 Vega 0.003 Open interest 4 Model this call Put · $26 Last $0.01 Breakeven $25.99 Implied vol 298.6% Delta -0.116 ≈12% ITM Gamma 0.032 Theta -0.401 Vega 0.005 Open interest 11 Model this put
3	2	212.7%	0.907	$5.46		$0.41	-0.174	318.9%	1	10
Call · $27 In the money Last $5.46 Breakeven $32.46 Implied vol 212.7% Delta 0.907 ≈91% ITM Gamma 0.038 Theta -0.242 Vega 0.003 Open interest 3 Model this call Put · $27 Last $0.41 Breakeven $26.59 Implied vol 318.9% Delta -0.174 ≈17% ITM Gamma 0.039 Theta -0.56 Vega 0.005 Open interest 10 Model this put
4	3	181.2%	0.89	$4.55		$0.01	-0.05	131.4%	1	40
Call · $28 In the money Last $4.55 Breakeven $32.55 Implied vol 181.2% Delta 0.89 ≈89% ITM Gamma 0.05 Theta -0.235 Vega 0.003 Open interest 4 Model this call Put · $28 Last $0.01 Breakeven $27.99 Implied vol 131.4% Delta -0.05 ≈5% ITM Gamma 0.038 Theta -0.092 Vega 0.002 Open interest 40 Model this put
2	1	—	—	$3.49		$0.06	-0.055	118%	2	1
Call · $28.5 In the money Last $3.49 Breakeven $31.99 Implied vol — Delta — Gamma — Theta — Vega — Open interest 2 Model this call Put · $28.5 Last $0.06 Breakeven $28.44 Implied vol 118% Delta -0.055 ≈5% ITM Gamma 0.046 Theta -0.089 Vega 0.002 Open interest 1 Model this put
14	10	104.1%	0.94	$3.26		$0.09	-0.097	124.2%	1	148
Call · $29 In the money Last $3.26 Breakeven $32.26 Implied vol 104.1% Delta 0.94 ≈94% ITM Gamma 0.056 Theta -0.086 Vega 0.002 Open interest 14 Model this call Put · $29 Last $0.09 Breakeven $28.91 Implied vol 124.2% Delta -0.097 ≈10% ITM Gamma 0.067 Theta -0.145 Vega 0.003 Open interest 148 Model this put
13	1	—	—	$2.58		$0.02	-0.207	172.5%	4	82
Call · $29.5 In the money Last $2.58 Breakeven $32.08 Implied vol — Delta — Gamma — Theta — Vega — Open interest 13 Model this call Put · $29.5 Last $0.02 Breakeven $29.48 Implied vol 172.5% Delta -0.207 ≈21% ITM Gamma 0.081 Theta -0.34 Vega 0.005 Open interest 82 Model this put
20	15	—	—	$2.51		$0.02	-0.057	67%	1.6k	2.6k
Call · $30 In the money Last $2.51 Breakeven $32.51 Implied vol — Delta — Gamma — Theta — Vega — Open interest 20 Model this call Put · $30 Last $0.02 Breakeven $29.98 Implied vol 67% Delta -0.057 ≈6% ITM Gamma 0.082 Theta -0.052 Vega 0.002 Open interest 2.6k Model this put
42	18	82.8%	0.834	$2.10		$0.04	-0.092	59.7%	12	547
Call · $30.5 In the money Last $2.10 Breakeven $32.60 Implied vol 82.8% Delta 0.834 ≈83% ITM Gamma 0.145 Theta -0.141 Vega 0.005 Open interest 42 Model this call Put · $30.5 Last $0.04 Breakeven $30.46 Implied vol 59.7% Delta -0.092 ≈9% ITM Gamma 0.132 Theta -0.066 Vega 0.004 Open interest 547 Model this put
481	13	—	—	$1.45		$0.10	-0.165	55.7%	268	529
Call · $31 In the money Last $1.45 Breakeven $32.45 Implied vol — Delta — Gamma — Theta — Vega — Open interest 481 Model this call Put · $31 Last $0.10 Breakeven $30.90 Implied vol 55.7% Delta -0.165 ≈16% ITM Gamma 0.215 Theta -0.094 Vega 0.005 Open interest 529 Model this put
232	17	44.8%	0.744	$0.69		$0.21	-0.302	57%	19	328
Call · $31.5 In the money Last $0.69 Breakeven $32.19 Implied vol 44.8% Delta 0.744 ≈74% ITM Gamma 0.347 Theta -0.099 Vega 0.007 Open interest 232 Model this call Put · $31.5 Last $0.21 Breakeven $31.29 Implied vol 57% Delta -0.302 ≈30% ITM Gamma 0.296 Theta -0.135 Vega 0.007 Open interest 328 Model this put
Underlying $31.82
1.6k	1.5k	27.6%	0.567	$0.33		$0.47	-0.461	53.9%	1.5k	2.5k
Call · $32 Last $0.33 Breakeven $32.33 Implied vol 27.6% Delta 0.567 ≈57% ITM Gamma 0.689 Theta -0.075 Vega 0.008 Open interest 1.6k Model this call Put · $32 In the money Last $0.47 Breakeven $31.53 Implied vol 53.9% Delta -0.461 ≈46% ITM Gamma 0.358 Theta -0.146 Vega 0.008 Open interest 2.5k Model this put
7.4k	513	36.3%	0.301	$0.16		$0.80	-0.534	145.2%	6	81
Call · $32.5 Last $0.16 Breakeven $32.66 Implied vol 36.3% Delta 0.301 ≈30% ITM Gamma 0.463 Theta -0.087 Vega 0.007 Open interest 7.4k Model this call Put · $32.5 In the money Last $0.80 Breakeven $31.70 Implied vol 145.2% Delta -0.534 ≈53% ITM Gamma 0.132 Theta -0.393 Vega 0.008 Open interest 81 Model this put
415	23	40.9%	0.148	$0.08		$1.25	-0.683	84.9%	21	186
Call · $33 Last $0.08 Breakeven $33.08 Implied vol 40.9% Delta 0.148 ≈15% ITM Gamma 0.274 Theta -0.065 Vega 0.006 Open interest 415 Model this call Put · $33 In the money Last $1.25 Breakeven $31.75 Implied vol 84.9% Delta -0.683 ≈68% ITM Gamma 0.203 Theta -0.205 Vega 0.007 Open interest 186 Model this put
435	57	52.1%	0.105	$0.06		$2.01	-0.779	83.5%	1	21
Call · $33.5 Last $0.06 Breakeven $33.56 Implied vol 52.1% Delta 0.105 ≈11% ITM Gamma 0.168 Theta -0.065 Vega 0.004 Open interest 435 Model this call Put · $33.5 In the money Last $2.01 Breakeven $31.49 Implied vol 83.5% Delta -0.779 ≈78% ITM Gamma 0.173 Theta -0.169 Vega 0.006 Open interest 21 Model this put
278	4	58.8%	0.065	$0.02		$2.40	-0.834	89.1%	1	43
Call · $34 Last $0.02 Breakeven $34.02 Implied vol 58.8% Delta 0.065 ≈7% ITM Gamma 0.105 Theta -0.051 Vega 0.002 Open interest 278 Model this call Put · $34 In the money Last $2.40 Breakeven $31.60 Implied vol 89.1% Delta -0.834 ≈83% ITM Gamma 0.135 Theta -0.15 Vega 0.006 Open interest 43 Model this put
356	7	76.3%	0.072	$0.07		$2.58	-0.838	109.5%	2	4
Call · $34.5 Last $0.07 Breakeven $34.57 Implied vol 76.3% Delta 0.072 ≈7% ITM Gamma 0.088 Theta -0.072 Vega 0.004 Open interest 356 Model this call Put · $34.5 In the money Last $2.58 Breakeven $31.92 Implied vol 109.5% Delta -0.838 ≈84% ITM Gamma 0.108 Theta -0.182 Vega 0.006 Open interest 4 Model this put
331	13	69.3%	0.027	$0.01		$3.15	-0.89	106.1%	2	52
Call · $35 Last $0.01 Breakeven $35.01 Implied vol 69.3% Delta 0.027 ≈3% ITM Gamma 0.043 Theta -0.029 Vega 0.001 Open interest 331 Model this call Put · $35 In the money Last $3.15 Breakeven $31.85 Implied vol 106.1% Delta -0.89 ≈89% ITM Gamma 0.086 Theta -0.134 Vega 0.004 Open interest 52 Model this put
104	6	95%	0.054	$0.01		$3.60	-0.874	131.2%	2	0
Call · $35.5 Last $0.01 Breakeven $35.51 Implied vol 95% Delta 0.054 ≈5% ITM Gamma 0.055 Theta -0.07 Vega 0.002 Open interest 104 Model this call Put · $35.5 In the money Last $3.60 Breakeven $31.90 Implied vol 131.2% Delta -0.874 ≈87% ITM Gamma 0.076 Theta -0.184 Vega 0.004 Open interest 0 Model this put
140	1	91.6%	0.027	$0.01		$4.75	-0.745	243.1%	4	2
Call · $36 Last $0.01 Breakeven $36.01 Implied vol 91.6% Delta 0.027 ≈3% ITM Gamma 0.033 Theta -0.039 Vega 0.001 Open interest 140 Model this call Put · $36 In the money Last $4.75 Breakeven $31.25 Implied vol 243.1% Delta -0.745 ≈75% ITM Gamma 0.065 Theta -0.538 Vega 0.008 Open interest 2 Model this put
13	1	267.7%	0.254	$0.05		$5.20	-0.814	206%	4	0
Call · $36.5 Last $0.05 Breakeven $36.55 Implied vol 267.7% Delta 0.254 ≈25% ITM Gamma 0.059 Theta -0.593 Vega 0.006 Open interest 13 Model this call Put · $36.5 In the money Last $5.20 Breakeven $31.30 Implied vol 206% Delta -0.814 ≈81% ITM Gamma 0.063 Theta -0.373 Vega 0.006 Open interest 0 Model this put
79	1	195.1%	0.142	$0.05		$5.70	-0.855	198.2%	4	0
Call · $37 Last $0.05 Breakeven $37.05 Implied vol 195.1% Delta 0.142 ≈14% ITM Gamma 0.056 Theta -0.301 Vega 0.004 Open interest 79 Model this call Put · $37 In the money Last $5.70 Breakeven $31.30 Implied vol 198.2% Delta -0.855 ≈85% ITM Gamma 0.056 Theta -0.31 Vega 0.004 Open interest 0 Model this put
1	1	154.7%	0.065	$0.01		$5.80	-0.791	267.1%	2	0
Call · $37.5 Last $0.01 Breakeven $37.51 Implied vol 154.7% Delta 0.065 ≈7% ITM Gamma 0.04 Theta -0.134 Vega 0.002 Open interest 1 Model this call Put · $37.5 In the money Last $5.80 Breakeven $31.70 Implied vol 267.1% Delta -0.791 ≈79% ITM Gamma 0.052 Theta -0.521 Vega 0.006 Open interest 0 Model this put
606	5	166.5%	0.064	$0.03		$6.35	-0.832	251.1%	1	0
Call · $38 Last $0.03 Breakeven $38.03 Implied vol 166.5% Delta 0.064 ≈6% ITM Gamma 0.036 Theta -0.143 Vega 0.002 Open interest 606 Model this call Put · $38 In the money Last $6.35 Breakeven $31.65 Implied vol 251.1% Delta -0.832 ≈83% ITM Gamma 0.048 Theta -0.43 Vega 0.006 Open interest 0 Model this put
516	3	167.3%	0.052	$0.02		$6.75	-0.894	212.9%	1	1
Call · $38.5 Last $0.02 Breakeven $38.52 Implied vol 167.3% Delta 0.052 ≈5% ITM Gamma 0.03 Theta -0.12 Vega 0.002 Open interest 516 Model this call Put · $38.5 In the money Last $6.75 Breakeven $31.75 Implied vol 212.9% Delta -0.894 ≈89% ITM Gamma 0.041 Theta -0.262 Vega 0.004 Open interest 1 Model this put
62	1	178.9%	0.052	$0.03		$6.70	-0.843	277.5%	1	0
Call · $39 Last $0.03 Breakeven $39.03 Implied vol 178.9% Delta 0.052 ≈5% ITM Gamma 0.028 Theta -0.128 Vega 0.002 Open interest 62 Model this call Put · $39 In the money Last $6.70 Breakeven $32.30 Implied vol 277.5% Delta -0.843 ≈84% ITM Gamma 0.042 Theta -0.457 Vega 0.006 Open interest 0 Model this put
1	1	237.7%	0.102	$0.05		$8.36	-0.881	253%	2	0
Call · $39.5 Last $0.05 Breakeven $39.55 Implied vol 237.7% Delta 0.102 ≈10% ITM Gamma 0.036 Theta -0.287 Vega 0.004 Open interest 1 Model this call Put · $39.5 In the money Last $8.36 Breakeven $31.14 Implied vol 253% Delta -0.881 ≈88% ITM Gamma 0.038 Theta -0.339 Vega 0.004 Open interest 0 Model this put
127	5	218.3%	0.068	$0.02		$8.04	-0.885	263.6%	1	0
Call · $40 Last $0.02 Breakeven $40.02 Implied vol 218.3% Delta 0.068 ≈7% ITM Gamma 0.029 Theta -0.194 Vega 0.002 Open interest 127 Model this call Put · $40 In the money Last $8.04 Breakeven $31.96 Implied vol 263.6% Delta -0.885 ≈89% ITM Gamma 0.035 Theta -0.345 Vega 0.004 Open interest 0 Model this put
0	—	246.8%	0.081	—		$8.82	-0.883	280.1%	1	0
Call · $40.5 Last — Breakeven — Implied vol 246.8% Delta 0.081 ≈8% ITM Gamma 0.03 Theta -0.255 Vega 0.004 Open interest 0 Model this call Put · $40.5 In the money Last $8.82 Breakeven $31.68 Implied vol 280.1% Delta -0.883 ≈88% ITM Gamma 0.034 Theta -0.372 Vega 0.004 Open interest 0 Model this put
4	6	250.5%	0.074	$0.26		$9.23	-0.886	290.4%	1	1
Call · $41 Last $0.26 Breakeven $41.26 Implied vol 250.5% Delta 0.074 ≈7% ITM Gamma 0.027 Theta -0.241 Vega 0.002 Open interest 4 Model this call Put · $41 In the money Last $9.23 Breakeven $31.77 Implied vol 290.4% Delta -0.886 ≈89% ITM Gamma 0.032 Theta -0.378 Vega 0.004 Open interest 1 Model this put
69	1	257.4%	0.063	$0.01		$9.21	-0.897	304.6%	2	0
Call · $42 Last $0.01 Breakeven $42.01 Implied vol 257.4% Delta 0.063 ≈6% ITM Gamma 0.023 Theta -0.215 Vega 0.002 Open interest 69 Model this call Put · $42 In the money Last $9.21 Breakeven $32.79 Implied vol 304.6% Delta -0.897 ≈90% ITM Gamma 0.028 Theta -0.368 Vega 0.004 Open interest 0 Model this put
1	1	346.1%	0.117	$0.04		$10.97	-0.902	324.4%	1	0
Call · $43 Last $0.04 Breakeven $43.04 Implied vol 346.1% Delta 0.117 ≈12% ITM Gamma 0.027 Theta -0.462 Vega 0.004 Open interest 1 Model this call Put · $43 In the money Last $10.97 Breakeven $32.03 Implied vol 324.4% Delta -0.902 ≈90% ITM Gamma 0.026 Theta -0.379 Vega 0.004 Open interest 0 Model this put
0	—	365.2%	0.113	—		$11.88	-0.906	343.7%	1	0
Call · $44 Last — Breakeven — Implied vol 365.2% Delta 0.113 ≈11% ITM Gamma 0.025 Theta -0.473 Vega 0.004 Open interest 0 Model this call Put · $44 In the money Last $11.88 Breakeven $32.12 Implied vol 343.7% Delta -0.906 ≈91% ITM Gamma 0.024 Theta -0.391 Vega 0.004 Open interest 0 Model this put
3	3	—	—	$1.04		$11.72	-0.91	362.7%	8	0
Call · $45 Last $1.04 Breakeven $46.04 Implied vol — Delta — Gamma — Theta — Vega — Open interest 3 Model this call Put · $45 In the money Last $11.72 Breakeven $33.28 Implied vol 362.7% Delta -0.91 ≈91% ITM Gamma 0.022 Theta -0.402 Vega 0.004 Open interest 0 Model this put
4	2	—	—	$0.01		$16.83	-0.879	512%	8	0
Call · $50 Last $0.01 Breakeven $50.01 Implied vol — Delta — Gamma — Theta — Vega — Open interest 4 Model this call Put · $50 In the money Last $16.83 Breakeven $33.17 Implied vol 512% Delta -0.879 ≈88% ITM Gamma 0.019 Theta -0.696 Vega 0.005 Open interest 0 Model this put

About this data

Greeks, implied volatility, open interest and the last price come from the latest daily snapshot and are 15-minute delayed. 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 38" for the wings. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 45012 CUSIP 406216101 13F (30d) 574 filings 543 filers Visit website Investor relations