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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)576,338

59.89Bid 77.28Ask 17.39Spread

Pre-market

Sep 22, 2026 9:16:30 AM EDT

67.79USD+0.030%(+0.02)2,293

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 Jan 15, 2027View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
19	85	1	38

WLK Jan 15, 2027 Exp. - Volume by Strike

Puts

Calls

WLK Jan 15, 2027 Exp. - Open Interest by Strike

Puts

Calls

WLK Jan 15, 2027 Exp. - Max Pain @ $60.00

Puts

Calls

WLK Jan 15, 2027 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
145 C	0.75	-31.82%	1	5	07-01	WLK270115C00145000
140 C	1.20	0%	2	2	06-25	WLK270115C00140000
135 C	1.30	0%	1	1	06-25	WLK270115C00135000
130 C	0	0%	0			WLK270115C00130000
125 C	1.70	0%	1	1	06-25	WLK270115C00125000
120 C	0.45	0.00%	1	10	08-31	WLK270115C00120000
115 C	0	0%	0			WLK270115C00115000
110 C	0	0%	0			WLK270115C00110000
105 C	0	0%	0			WLK270115C00105000
100 C	1.80	+20.00%	1	14	09-02	WLK270115C00100000
95 C	2.20	0%	1	1	09-08	WLK270115C00095000
90 C	0	0%	0			WLK270115C00090000
85 C	4.50	0%	1	1	09-08	WLK270115C00085000
80 C	5.00	-20.63%	1	7	09-09	WLK270115C00080000
75 C	6.90	-13.75%	1	40	09-09	WLK270115C00075000
70 C	9.30	-15.45%	1	3	09-09	WLK270115C00070000
65 C	0	0%	0			WLK270115C00065000
60 C	18.16	-9.56%	3	15	08-25	WLK270115C00060000
55 C	24.35	0%	2	2	07-07	WLK270115C00055000
50 C	0	0%	0			WLK270115C00050000
45 C	31.80	-2.75%	2	1	07-23	WLK270115C00045000
40 C	30.45	-18.15%	4	1	08-03	WLK270115C00040000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
145 P	0	0%	0			WLK270115P00145000
140 P	0	0%	0			WLK270115P00140000
135 P	0	0%	0			WLK270115P00135000
130 P	0	0%	0			WLK270115P00130000
125 P	0	0%	0			WLK270115P00125000
120 P	0	0%	0			WLK270115P00120000
115 P	0	0%	0			WLK270115P00115000
110 P	31.00	0%	2	0	06-18	WLK270115P00110000
105 P	0	0%	0			WLK270115P00105000
100 P	0	0%	0			WLK270115P00100000
95 P	0	0%	0			WLK270115P00095000
90 P	19.64	0%	2	1	07-21	WLK270115P00090000
85 P	0	0%	0			WLK270115P00085000
80 P	0	0%	0			WLK270115P00080000
75 P	0	0%	0			WLK270115P00075000
70 P	0	0%	0			WLK270115P00070000
65 P	0	0%	0			WLK270115P00065000
60 P	2.70	+25.00%	1	4	09-09	WLK270115P00060000
55 P	3.00	-9.09%	1	7	07-07	WLK270115P00055000
50 P	1.05	+16.67%	3	14	08-18	WLK270115P00050000
45 P	0.50	-58.33%	2	8	08-11	WLK270115P00045000
40 P	0.35	-22.22%	2	5	09-03	WLK270115P00040000

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