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WLK
Westlake Corporation
stock NYSE

At Close

Aug 6, 2026 3:59:59 PM EDT

77.40USD-1.639%(-1.29)897,240

73.11Bid 83.15Ask 10.04Spread

Pre-market

Aug 5, 2026 9:23:30 AM EDT

80.26USD-0.459%(-0.37)0

After-hours

Aug 6, 2026 4:10:30 PM EDT

77.47USD+0.090%(+0.07)1

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Aug 21, 2026 Sep 18, 2026 Oct 16, 2026 Dec 18, 2026 Jan 15, 2027

ITM/OTM for Dec 18, 2026View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
3	376	69	327

WLK Dec 18, 2026 Exp. - Volume by Strike

Puts

Calls

WLK Dec 18, 2026 Exp. - Open Interest by Strike

Puts

Calls

WLK Dec 18, 2026 Exp. - Max Pain @ $95.00

Puts

Calls

WLK Dec 18, 2026 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
180 C	0.20	-76.47%	20	20	06-29	WLK261218C00180000
175 C	0.70	-12.50%	1	3	06-23	WLK261218C00175000
170 C	1.00	-9.09%	10	17	07-02	WLK261218C00170000
165 C	1.20	-27.27%	1	4	06-02	WLK261218C00165000
160 C	1.40	-22.22%	1	4	06-01	WLK261218C00160000
155 C	1.60	-20.00%	1	3	06-01	WLK261218C00155000
150 C	0.75	0.00%	10	20	07-14	WLK261218C00150000
145 C	0.80	-11.11%	2	5	06-25	WLK261218C00145000
140 C	0.90	-10.00%	2	7	06-25	WLK261218C00140000
135 C	0.80	-20.00%	1	8	07-09	WLK261218C00135000
130 C	1.15	-93.65%	1	12	06-25	WLK261218C00130000
125 C	19.00	-10.17%	3	1	04-13	WLK261218C00125000
120 C	2.00	-20.00%	2	23	06-23	WLK261218C00120000
115 C	6.00	-40.54%	2	7	05-28	WLK261218C00115000
110 C	1.80	-70.73%	191	195	07-01	WLK261218C00110000
105 C	2.70	-78.91%	3	3	07-13	WLK261218C00105000
100 C	3.71	-71.26%	3	25	07-13	WLK261218C00100000
95 C	3.00	-33.33%	1	1	07-27	WLK261218C00095000
90 C	6.60	-77.75%	1	14	07-08	WLK261218C00090000
85 C	7.00	-48.49%	1	1	07-29	WLK261218C00085000
80 C	16.03	-10.20%	4	3	06-09	WLK261218C00080000
75 C	11.50	-8.00%	1	3	07-22	WLK261218C00075000
70 C	12.41	0%	2	0	07-02	WLK261218C00070000
65 C	0	0%	0			WLK261218C00065000
60 C	0	0%	0			WLK261218C00060000
55 C	0	0%	0			WLK261218C00055000
50 C	0	0%	0			WLK261218C00050000
45 C	0	0%	0			WLK261218C00045000
40 C	0	0%	0			WLK261218C00040000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
180 P	0	0%	0			WLK261218P00180000
175 P	0	0%	0			WLK261218P00175000
170 P	0	0%	0			WLK261218P00170000
165 P	0	0%	0			WLK261218P00165000
160 P	0	0%	0			WLK261218P00160000
155 P	0	0%	0			WLK261218P00155000
150 P	0	0%	0			WLK261218P00150000
145 P	0	0%	0			WLK261218P00145000
140 P	0	0%	0			WLK261218P00140000
135 P	0	0%	0			WLK261218P00135000
130 P	0	0%	0			WLK261218P00130000
125 P	0	0%	0			WLK261218P00125000
120 P	25.10	0%	1	1	03-19	WLK261218P00120000
115 P	22.30	-38.31%	1	2	03-19	WLK261218P00115000
110 P	0	0%	0			WLK261218P00110000
105 P	12.70	-26.50%	1	1	04-16	WLK261218P00105000
100 P	0	0%	0			WLK261218P00100000
95 P	14.89	0%	20	20	05-13	WLK261218P00095000
90 P	0	0%	0			WLK261218P00090000
85 P	17.30	+54.33%	6	28	06-30	WLK261218P00085000
80 P	6.20	-55.71%	1	17	03-30	WLK261218P00080000
75 P	5.30	0%	1	1	05-07	WLK261218P00075000
70 P	4.67	+26.22%	1	5	05-11	WLK261218P00070000
65 P	4.20	0%	1	1	06-11	WLK261218P00065000
60 P	4.00	-4.76%	5	55	07-29	WLK261218P00060000
55 P	2.75	0%	257	257	06-24	WLK261218P00055000
50 P	1.70	-50.00%	1	2	05-29	WLK261218P00050000
45 P	1.25	+4.17%	1	6	05-29	WLK261218P00045000
40 P	0	0%	0			WLK261218P00040000

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