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WLK
Westlake Corporation
stock NYSE

At Close

Sep 21, 2026 3:59:52 PM EDT

67.76USD-1.889%(-1.31)558,248

0.00Bid 0.00Ask 0.00Spread

Pre-market

0.00USD-100.000%(-69.07)0

After-hours

Sep 21, 2026 4:10:30 PM EDT

67.77USD+0.007%(+0.01)1

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Oct 16, 2026 Nov 20, 2026 Dec 18, 2026 Jan 15, 2027 Apr 16, 2027 Dec 17, 2027

ITM/OTM for Oct 16, 2026View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
44	720	101	24

WLK Oct 16, 2026 Exp. - Volume by Strike

Puts

Calls

WLK Oct 16, 2026 Exp. - Open Interest by Strike

Puts

Calls

WLK Oct 16, 2026 Exp. - Max Pain @ $80.00

Puts

Calls

WLK Oct 16, 2026 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
180 C	0.45	-8.16%	1	42	06-25	WLK261016C00180000
175 C	0.45	-35.71%	1	3	06-26	WLK261016C00175000
170 C	0.45	-70.00%	1	4	06-26	WLK261016C00170000
165 C	0.75	0%	1	1	05-22	WLK261016C00165000
160 C	0.45	-72.05%	1	24	06-26	WLK261016C00160000
155 C	0.85	-10.53%	2	3	05-29	WLK261016C00155000
150 C	0.45	-30.77%	1	5	06-26	WLK261016C00150000
145 C	0.45	+12.50%	1	7	06-26	WLK261016C00145000
140 C	0.50	+11.11%	1	4	06-26	WLK261016C00140000
135 C	1.65	-85.01%	1	3	05-27	WLK261016C00135000
130 C	0.05	-97.44%	20	1	09-04	WLK261016C00130000
125 C	3.05	0%	11	10	05-21	WLK261016C00125000
120 C	0	0%	0			WLK261016C00120000
115 C	3.70	-10.84%	1	3	05-28	WLK261016C00115000
110 C	3.79	-60.93%	1	3	06-08	WLK261016C00110000
105 C	0	0%	0			WLK261016C00105000
100 C	7.80	-20.49%	1	11	05-15	WLK261016C00100000
95 C	4.81	-43.41%	1	0	06-18	WLK261016C00095000
90 C	0.50	-87.50%	1	38	09-10	WLK261016C00090000
85 C	1.75	-40.68%	1	319	08-25	WLK261016C00085000
80 C	0.48	-44.19%	2	231	09-18	WLK261016C00080000
75 C	1.12	-36.00%	3	7	09-18	WLK261016C00075000
70 C	5.50	0%	1	1	09-09	WLK261016C00070000
65 C	6.15	-17.67%	10	44	09-18	WLK261016C00065000
60 C	0	0%	0			WLK261016C00060000
55 C	0	0%	0			WLK261016C00055000
50 C	0	0%	0			WLK261016C00050000
45 C	0	0%	0			WLK261016C00045000
40 C	0	0%	0			WLK261016C00040000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
180 P	0	0%	0			WLK261016P00180000
175 P	0	0%	0			WLK261016P00175000
170 P	0	0%	0			WLK261016P00170000
165 P	0	0%	0			WLK261016P00165000
160 P	0	0%	0			WLK261016P00160000
155 P	0	0%	0			WLK261016P00155000
150 P	0	0%	0			WLK261016P00150000
145 P	0	0%	0			WLK261016P00145000
140 P	27.00	0%	1	1	04-07	WLK261016P00140000
135 P	0	0%	0			WLK261016P00135000
130 P	34.61	+30.60%	5	5	05-12	WLK261016P00130000
125 P	18.60	0%	3	3	04-07	WLK261016P00125000
120 P	0	0%	0			WLK261016P00120000
115 P	18.80	0%	1	1	03-05	WLK261016P00115000
110 P	21.20	+9.84%	1	4	05-13	WLK261016P00110000
105 P	0	0%	0			WLK261016P00105000
100 P	13.55	+61.31%	1	1	05-07	WLK261016P00100000
95 P	22.44	+49.60%	10	11	07-02	WLK261016P00095000
90 P	8.00	-4.76%	1	2	03-23	WLK261016P00090000
85 P	12.05	-6.59%	1	13	08-27	WLK261016P00085000
80 P	10.40	+85.71%	1	40	09-16	WLK261016P00080000
75 P	5.22	+17.30%	1	10	09-14	WLK261016P00075000
70 P	3.30	+24.53%	1	10	09-18	WLK261016P00070000
65 P	0.85	-25.44%	2	7	09-17	WLK261016P00065000
60 P	0.20	-63.64%	2	15	09-04	WLK261016P00060000
55 P	1.40	+16.67%	1	1	06-18	WLK261016P00055000
50 P	1.05	0.00%	1	1	06-18	WLK261016P00050000
45 P	0	0%	0			WLK261016P00045000
40 P	0	0%	0			WLK261016P00040000

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