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MKSI
MKS Inc. Common Stock
stock NASDAQ

At Close

Sep 21, 2026 3:59:58 PM EDT

256.74USD+1.849%(+4.66)946,074

242.65Bid 269.60Ask 26.95Spread

Pre-market

Sep 21, 2026 8:47:30 AM EDT

260.93USD+3.510%(+8.85)504

After-hours

Sep 21, 2026 4:49:30 PM EDT

256.24USD-0.195%(-0.50)1,549

OverviewOption ChainHistoricalExchangesShortsMore

Expiration Dates

Oct 16, 2026 Nov 20, 2026 Dec 18, 2026 Jan 15, 2027 Feb 19, 2027 Apr 16, 2027 May 21, 2027 Aug 20, 2027 Nov 19, 2027

ITM/OTM for Aug 20, 2027View All Dates

Calls ITM	Calls OTM	Puts ITM	Puts OTM
8	119	4	18

MKSI Aug 20, 2027 Exp. - Volume by Strike

Puts

Calls

MKSI Aug 20, 2027 Exp. - Open Interest by Strike

Puts

Calls

MKSI Aug 20, 2027 Exp. - Max Pain @ $210.00

Puts

Calls

MKSI Aug 20, 2027 Exp. - Option Chain

In the Money (ITM)

Calls

Strike	Price	Change	Vol	OI	Last	Contract Name
620 C	5.50	-6.46%	2	19	09-15	MKSI270820C00620000
600 C	26.26	0%	10	5	08-10	MKSI270820C00600000
580 C	0	0%	0			MKSI270820C00580000
560 C	7.83	-62.84%	1	7	09-14	MKSI270820C00560000
540 C	9.70	-58.03%	1	6	09-01	MKSI270820C00540000
520 C	0	0%	0			MKSI270820C00520000
500 C	14.15	-73.35%	3	3	08-31	MKSI270820C00500000
490 C	10.70	-74.05%	1	1	09-15	MKSI270820C00490000
480 C	65.00	0%	1	1	06-12	MKSI270820C00480000
470 C	95.50	+23.34%	2	2	06-18	MKSI270820C00470000
460 C	0	0%	0			MKSI270820C00460000
450 C	0	0%	0			MKSI270820C00450000
440 C	134.50	+117.85%	3	3	06-30	MKSI270820C00440000
430 C	0	0%	0			MKSI270820C00430000
420 C	0	0%	0			MKSI270820C00420000
410 C	52.50	-51.04%	2	3	07-28	MKSI270820C00410000
400 C	21.84	-2.28%	2	21	09-14	MKSI270820C00400000
390 C	0	0%	0			MKSI270820C00390000
380 C	61.10	0%	10	10	08-18	MKSI270820C00380000
370 C	0	0%	0			MKSI270820C00370000
360 C	0	0%	0			MKSI270820C00360000
350 C	36.40	-74.04%	2	4	09-08	MKSI270820C00350000
340 C	0	0%	0			MKSI270820C00340000
330 C	39.00	-54.16%	1	4	08-28	MKSI270820C00330000
320 C	0	0%	0			MKSI270820C00320000
310 C	39.50	-4.24%	1	1	09-03	MKSI270820C00310000
300 C	142.00	0%	1	1	06-15	MKSI270820C00300000
290 C	46.30	-48.00%	2	16	09-01	MKSI270820C00290000
280 C	91.40	0%	8	4	08-10	MKSI270820C00280000
270 C	61.90	-43.70%	2	5	09-08	MKSI270820C00270000
260 C	67.00	0%	3	3	09-08	MKSI270820C00260000
250 C	52.90	0%	1	1	09-17	MKSI270820C00250000
240 C	0	0%	0			MKSI270820C00240000
230 C	0	0%	0			MKSI270820C00230000
220 C	103.50	0%	1	1	08-21	MKSI270820C00220000
210 C	0	0%	0			MKSI270820C00210000
200 C	0	0%	0			MKSI270820C00200000
195 C	0	0%	0			MKSI270820C00195000
190 C	0	0%	0			MKSI270820C00190000
185 C	0	0%	0			MKSI270820C00185000
180 C	126.00	-47.05%	1	0	07-29	MKSI270820C00180000
175 C	0	0%	0			MKSI270820C00175000
170 C	0	0%	0			MKSI270820C00170000
165 C	0	0%	0			MKSI270820C00165000
160 C	0	0%	0			MKSI270820C00160000
155 C	0	0%	0			MKSI270820C00155000
150 C	0	0%	0			MKSI270820C00150000
145 C	0	0%	0			MKSI270820C00145000
140 C	0	0%	0			MKSI270820C00140000
135 C	0	0%	0			MKSI270820C00135000
130 C	132.48	0%	6	6	09-02	MKSI270820C00130000

Puts

Strike	Price	Change	Vol	OI	Last	Contract Name
620 P	0	0%	0			MKSI270820P00620000
600 P	0	0%	0			MKSI270820P00600000
580 P	0	0%	0			MKSI270820P00580000
560 P	0	0%	0			MKSI270820P00560000
540 P	0	0%	0			MKSI270820P00540000
520 P	0	0%	0			MKSI270820P00520000
500 P	0	0%	0			MKSI270820P00500000
490 P	0	0%	0			MKSI270820P00490000
480 P	0	0%	0			MKSI270820P00480000
470 P	0	0%	0			MKSI270820P00470000
460 P	0	0%	0			MKSI270820P00460000
450 P	0	0%	0			MKSI270820P00450000
440 P	0	0%	0			MKSI270820P00440000
430 P	0	0%	0			MKSI270820P00430000
420 P	0	0%	0			MKSI270820P00420000
410 P	0	0%	0			MKSI270820P00410000
400 P	0	0%	0			MKSI270820P00400000
390 P	0	0%	0			MKSI270820P00390000
380 P	0	0%	0			MKSI270820P00380000
370 P	0	0%	0			MKSI270820P00370000
360 P	0	0%	0			MKSI270820P00360000
350 P	0	0%	0			MKSI270820P00350000
340 P	0	0%	0			MKSI270820P00340000
330 P	0	0%	0			MKSI270820P00330000
320 P	0	0%	0			MKSI270820P00320000
310 P	0	0%	0			MKSI270820P00310000
300 P	76.46	0%	4	2	08-10	MKSI270820P00300000
290 P	0	0%	0			MKSI270820P00290000
280 P	66.25	0%	1	1	05-19	MKSI270820P00280000
270 P	60.75	0%	1	1	05-19	MKSI270820P00270000
260 P	0	0%	0			MKSI270820P00260000
250 P	54.09	0%	1	1	09-17	MKSI270820P00250000
240 P	0	0%	0			MKSI270820P00240000
230 P	0	0%	0			MKSI270820P00230000
220 P	0	0%	0			MKSI270820P00220000
210 P	28.00	-10.51%	5	5	09-10	MKSI270820P00210000
200 P	0	0%	0			MKSI270820P00200000
195 P	0	0%	0			MKSI270820P00195000
190 P	26.75	0%	2	2	09-15	MKSI270820P00190000
185 P	22.30	0%	14	6	08-10	MKSI270820P00185000
180 P	0	0%	0			MKSI270820P00180000
175 P	0	0%	0			MKSI270820P00175000
170 P	0	0%	0			MKSI270820P00170000
165 P	0	0%	0			MKSI270820P00165000
160 P	14.69	0%	2	2	09-14	MKSI270820P00160000
155 P	0	0%	0			MKSI270820P00155000
150 P	0	0%	0			MKSI270820P00150000
145 P	11.25	0%	1	1	08-28	MKSI270820P00145000
140 P	0	0%	0			MKSI270820P00140000
135 P	0	0%	0			MKSI270820P00135000
130 P	6.40	-23.35%	1	1	09-10	MKSI270820P00130000

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MKSI Aug 20, 2027 Exp. - Open Interest by Strike

MKSI Aug 20, 2027 Exp. - Max Pain @ $210.00

MKSI
MKS Inc. Common Stock
stock NASDAQ