PKX · Posco Holdings Inc.

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$48.68 -2.52 (-4.92%) At close · Jul 29

Market Cap

$14.72B

302.48M

Options Chain

15-min delayed Underlying $48.68 · at close Jul 29, 2026 Options Calculator

Positioning

Aug 21, 2026 · 22 days to expiry · 38 contracts

Put / call OI

0.23

Call-heavy positioning

Open interest

783

contracts outstanding

Volume

182

traded today

Max pain

$55.00

$6.32 above spot

ATM implied vol

45.4%

market's expected move

Open interest by strike

Calls Puts

100

105

110

115

120

Chain

Click any strike for greeks, breakeven and the calculator

Expiry

Aug 21 22d Sep 18 50d Nov 20 113d Feb 19 204d

Calls						Puts
OI	Vol	IV	Δ	Last	Strike	Last	Δ	IV	Vol	OI
40	5	117.4%	0.966	$39.50		$0.83	—	—	1	1
Call · $30 In the money Last $39.50 Breakeven $69.50 Implied vol 117.4% Delta 0.966 ≈97% ITM Gamma 0.005 Theta -0.023 Vega 0.01 Open interest 40 Model this call Put · $30 Last $0.83 Breakeven $29.17 Implied vol — Delta — Gamma — Theta — Vega — Open interest 1 Model this put
10	34	96.6%	0.936	$25.10		$0.35	-0.074	102.8%	5	3
Call · $35 In the money Last $25.10 Breakeven $60.10 Implied vol 96.6% Delta 0.936 ≈94% ITM Gamma 0.011 Theta -0.032 Vega 0.018 Open interest 10 Model this call Put · $35 Last $0.35 Breakeven $34.65 Implied vol 102.8% Delta -0.074 ≈7% ITM Gamma 0.011 Theta -0.039 Vega 0.018 Open interest 3 Model this put
0	—	76.3%	0.879	—		$1.30	-0.099	68.1%	1	6
Call · $40 In the money Last — Breakeven — Implied vol 76.3% Delta 0.879 ≈88% ITM Gamma 0.022 Theta -0.041 Vega 0.029 Open interest 0 Model this call Put · $40 Last $1.30 Breakeven $38.70 Implied vol 68.1% Delta -0.099 ≈10% ITM Gamma 0.021 Theta -0.032 Vega 0.019 Open interest 6 Model this put
7	1	54.7%	0.755	$6.80		$0.85	-0.217	48%	8	51
Call · $45 In the money Last $6.80 Breakeven $51.80 Implied vol 54.7% Delta 0.755 ≈76% ITM Gamma 0.047 Theta -0.046 Vega 0.04 Open interest 7 Model this call Put · $45 Last $0.85 Breakeven $44.15 Implied vol 48% Delta -0.217 ≈22% ITM Gamma 0.051 Theta -0.038 Vega 0.04 Open interest 51 Model this put
Underlying $48.68
2	2	52.2%	0.465	$3.40		$2.19	-0.562	38.6%	3	17
Call · $50 Last $3.40 Breakeven $53.40 Implied vol 52.2% Delta 0.465 ≈46% ITM Gamma 0.063 Theta -0.056 Vega 0.049 Open interest 2 Model this call Put · $50 In the money Last $2.19 Breakeven $47.81 Implied vol 38.6% Delta -0.562 ≈56% ITM Gamma 0.084 Theta -0.041 Vega 0.049 Open interest 17 Model this put
240	38	51.3%	0.201	$0.80		$4.95	-0.825	46.7%	55	21
Call · $55 Last $0.80 Breakeven $55.80 Implied vol 51.3% Delta 0.201 ≈20% ITM Gamma 0.045 Theta -0.039 Vega 0.034 Open interest 240 Model this call Put · $55 In the money Last $4.95 Breakeven $50.05 Implied vol 46.7% Delta -0.825 ≈82% ITM Gamma 0.046 Theta -0.032 Vega 0.034 Open interest 21 Model this put
17	1	57.6%	0.088	$0.60		$9.97	—	—	2	32
Call · $60 Last $0.60 Breakeven $60.60 Implied vol 57.6% Delta 0.088 ≈9% ITM Gamma 0.023 Theta -0.025 Vega 0.024 Open interest 17 Model this call Put · $60 In the money Last $9.97 Breakeven $50.03 Implied vol — Delta — Gamma — Theta — Vega — Open interest 32 Model this put
179	1	66.8%	0.053	$0.25		$1.75	-0.919	77.5%	1	3
Call · $65 Last $0.25 Breakeven $65.25 Implied vol 66.8% Delta 0.053 ≈5% ITM Gamma 0.013 Theta -0.019 Vega 0.014 Open interest 179 Model this call Put · $65 In the money Last $1.75 Breakeven $63.25 Implied vol 77.5% Delta -0.919 ≈92% ITM Gamma 0.016 Theta -0.03 Vega 0.014 Open interest 3 Model this put
86	1	156.4%	0.237	$0.15		$9.40	-0.945	84.6%	1	1
Call · $70 Last $0.15 Breakeven $70.15 Implied vol 156.4% Delta 0.237 ≈24% ITM Gamma 0.016 Theta -0.13 Vega 0.038 Open interest 86 Model this call Put · $70 In the money Last $9.40 Breakeven $60.60 Implied vol 84.6% Delta -0.945 ≈95% ITM Gamma 0.011 Theta -0.024 Vega 0.015 Open interest 1 Model this put
9	1	110%	0.077	$1.15		$22.39	-0.95	97.7%	1	4
Call · $75 Last $1.15 Breakeven $76.15 Implied vol 110% Delta 0.077 ≈8% ITM Gamma 0.011 Theta -0.043 Vega 0.015 Open interest 9 Model this call Put · $75 In the money Last $22.39 Breakeven $52.61 Implied vol 97.7% Delta -0.95 ≈95% ITM Gamma 0.009 Theta -0.025 Vega 0.015 Open interest 4 Model this put
9	1	121.7%	0.071	$0.75		$3.80	-0.962	105.9%	3	0
Call · $80 Last $0.75 Breakeven $80.75 Implied vol 121.7% Delta 0.071 ≈7% ITM Gamma 0.009 Theta -0.044 Vega 0.016 Open interest 9 Model this call Put · $80 In the money Last $3.80 Breakeven $76.20 Implied vol 105.9% Delta -0.962 ≈96% ITM Gamma 0.007 Theta -0.022 Vega 0.008 Open interest 0 Model this put
34	1	132.7%	0.066	$0.85		—	-0.964	115.9%	—	0
Call · $85 Last $0.85 Breakeven $85.85 Implied vol 132.7% Delta 0.066 ≈7% ITM Gamma 0.008 Theta -0.046 Vega 0.016 Open interest 34 Model this call Put · $85 In the money Last — Breakeven — Implied vol 115.9% Delta -0.964 ≈96% ITM Gamma 0.006 Theta -0.022 Vega 0.008 Open interest 0 Model this put
5	1	143%	0.062	$0.55		$30.78	-0.959	131.6%	12	5
Call · $90 Last $0.55 Breakeven $90.55 Implied vol 143% Delta 0.062 ≈6% ITM Gamma 0.007 Theta -0.047 Vega 0.017 Open interest 5 Model this call Put · $90 In the money Last $30.78 Breakeven $59.22 Implied vol 131.6% Delta -0.959 ≈96% ITM Gamma 0.006 Theta -0.029 Vega 0.008 Open interest 5 Model this put
0	1	152.9%	0.059	$0.30		—	-0.961	140.4%	—	0
Call · $95 Last $0.30 Breakeven $95.30 Implied vol 152.9% Delta 0.059 ≈6% ITM Gamma 0.006 Theta -0.048 Vega 0.017 Open interest 0 Model this call Put · $95 In the money Last — Breakeven — Implied vol 140.4% Delta -0.961 ≈96% ITM Gamma 0.005 Theta -0.029 Vega 0.008 Open interest 0 Model this put
1	1	162.2%	0.057	$1.15		—	-0.969	142.9%	—	0
Call · $100 Last $1.15 Breakeven $101.15 Implied vol 162.2% Delta 0.057 ≈6% ITM Gamma 0.006 Theta -0.05 Vega 0.017 Open interest 1 Model this call Put · $100 In the money Last — Breakeven — Implied vol 142.9% Delta -0.969 ≈97% ITM Gamma 0.004 Theta -0.024 Vega 0.008 Open interest 0 Model this put
0	—	171.1%	0.055	—		—	-0.963	156.8%	—	0
Call · $105 Last — Breakeven — Implied vol 171.1% Delta 0.055 ≈5% ITM Gamma 0.005 Theta -0.051 Vega 0.018 Open interest 0 Model this call Put · $105 In the money Last — Breakeven — Implied vol 156.8% Delta -0.963 ≈96% ITM Gamma 0.004 Theta -0.03 Vega 0.009 Open interest 0 Model this put
0	—	179.6%	0.053	—		—	-0.971	158.7%	—	0
Call · $110 Last — Breakeven — Implied vol 179.6% Delta 0.053 ≈5% ITM Gamma 0.005 Theta -0.052 Vega 0.018 Open interest 0 Model this call Put · $110 In the money Last — Breakeven — Implied vol 158.7% Delta -0.971 ≈97% ITM Gamma 0.004 Theta -0.025 Vega 0.009 Open interest 0 Model this put
0	—	187.7%	0.051	—		—	-0.971	166.1%	—	0
Call · $115 Last — Breakeven — Implied vol 187.7% Delta 0.051 ≈5% ITM Gamma 0.005 Theta -0.054 Vega 0.019 Open interest 0 Model this call Put · $115 In the money Last — Breakeven — Implied vol 166.1% Delta -0.971 ≈97% ITM Gamma 0.004 Theta -0.026 Vega 0.009 Open interest 0 Model this put
0	—	198.1%	0.054	—		—	-0.972	173.1%	—	0
Call · $120 Last — Breakeven — Implied vol 198.1% Delta 0.054 ≈5% ITM Gamma 0.005 Theta -0.059 Vega 0.019 Open interest 0 Model this call Put · $120 In the money Last — Breakeven — Implied vol 173.1% Delta -0.972 ≈97% ITM Gamma 0.003 Theta -0.026 Vega 0.009 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. Max pain is the listed strike where the most open interest would expire worthless — a positioning reference, not a forecast.

Key facts CIK 889132 CUSIP 693483109 13F (30d) 62 filings 41 filers Visit website