Stockwatch

Close Prices Last 3 Months

Price/volumes not adjusted for restructures

Date	Ex	Sym	Open	High	Low	Close	Chg	Vol	#Tr	Bid	Ask
2026-06-12	Q	MKSI	345.32	359.35	341.45	355.69	10.37	961,094	19,428	357.75	359.92
2026-06-11	Q	MKSI	326.74	347.27	326.10	345.32	29.25	1,005,550	20,051	324.71	380.00
2026-06-10	Q	MKSI	317.42	333.69	310.36	316.07	-4.89	1,269,952	16,338	298.00	350.00
2026-06-09	Q	MKSI	320.44	332.005	298.00	320.96	8.87	1,205,396	20,977	299.00	342.63
2026-06-08	Q	MKSI	314.99	339.92	309.025	312.09	10.44	1,099,645	18,299	200.00	323.38
2026-06-05	Q	MKSI	315.23	318.88	300.11	301.65	-28.58	955,713	17,036	297.00	328.49
2026-06-04	Q	MKSI	321.01	335.83	318.01	330.23	-4.92	679,271	14,370	320.00	344.46
2026-06-03	Q	MKSI	339.40	341.81	326.81	335.15	3.79	716,680	17,179	326.64	335.00
2026-06-02	Q	MKSI	324.355	334.49	320.3801	331.36	13.74	1,125,560	20,977	322.53	339.72
2026-06-01	Q	MKSI	318.02	319.31	309.46	317.62	-6.64	1,036,943	21,598	298.15	330.52
2026-05-29	Q	MKSI	325.99	329.75	317.16	324.26	0.85	1,204,480	19,593	322.00	349.92
2026-05-28	Q	MKSI	327.41	330.255	316.35	323.41	-4.60	1,106,903	20,827	322.00	332.57
2026-05-27	Q	MKSI	338.58	339.00	321.445	328.01	-6.10	910,976	21,293	325.00	334.56
2026-05-26	Q	MKSI	330.50	334.80	326.45	334.11	13.49	861,060	17,959	325.00	340.30
2026-05-25	Q	MKSI	315.48	322.00	311.7525	320.62	7.46	0	0	313.68	327.41
2026-05-22	Q	MKSI	315.48	322.00	311.7525	320.62	7.46	835,803	13,002	313.68	327.41
2026-05-21	Q	MKSI	311.51	314.035	307.18	313.16	1.65	1,361,925	16,192	314.00	319.98
2026-05-20	Q	MKSI	302.00	312.74	300.09	311.51	17.47	1,129,814	18,765	309.81	311.63
2026-05-19	Q	MKSI	289.56	294.265	280.83	294.04	-1.66	1,494,985	23,241	284.00	295.00
2026-05-18	Q	MKSI	314.51	315.12	290.00	295.70	-7.47	1,486,282	22,576	295.81	302.38
2026-05-15	Q	MKSI	301.43	304.71	295.08	303.17	-10.64	1,214,572	19,283	300.00	310.00
2026-05-14	Q	MKSI	317.31	317.43	308.51	313.81	-3.50	984,257	20,143	308.55	324.52
2026-05-13	Q	MKSI	318.99	321.52	311.66	317.31	5.59	923,757	20,291	311.00	322.00
2026-05-12	Q	MKSI	312.78	313.38	298.155	311.72	-7.99	1,479,908	24,554	302.00	312.40
2026-05-11	Q	MKSI	313.47	321.65	313.47	319.71	6.50	1,226,871	24,239	313.20	326.61
2026-05-08	Q	MKSI	318.70	324.42	308.83	313.21	12.42	1,736,759	30,510	312.52	314.49
2026-05-07	Q	MKSI	316.17	326.835	295.77	300.79	7.02	2,327,243	34,952	295.00	405.62
2026-05-06	Q	MKSI	294.92	294.92	280.5001	293.77	6.12	2,303,227	29,806	315.60	324.00
2026-05-05	Q	MKSI	297.02	298.00	280.18	287.65	-3.88	1,536,584	30,088	288.40	291.86
2026-05-04	Q	MKSI	277.72	292.12	277.55	291.53	12.15	1,908,894	25,232	282.05	299.99
2026-05-01	Q	MKSI	282.98	285.67	275.04	279.38	-4.37	1,300,768	18,592	278.50	279.84
2026-04-30	Q	MKSI	270.18	284.14	263.73	283.75	18.31	1,632,465	20,292	283.82	295.77
2026-04-29	Q	MKSI	273.88	278.91	261.23	265.44	-2.46	796,663	13,329	260.00	276.13
2026-04-28	Q	MKSI	268.88	277.00	264.45	267.90	-10.46	1,078,297	17,208	268.00	274.71
2026-04-27	Q	MKSI	282.57	283.605	267.94	278.36	-2.62	817,585	14,983	272.05	279.71
2026-04-24	Q	MKSI	290.00	294.05	279.38	280.98	0.42	845,418	17,521	270.51	306.54
2026-04-23	Q	MKSI	280.28	287.00	272.97	280.56	2.11	1,208,149	16,846	269.15	287.00
2026-04-22	Q	MKSI	280.97	282.62	266.845	278.45	4.68	1,704,195	20,810	277.60	285.00
2026-04-21	Q	MKSI	283.57	289.49	271.19	273.77	-6.16	957,311	19,422	274.41	279.00
2026-04-20	Q	MKSI	279.01	285.82	278.00	279.93	1.34	946,169	17,315	259.75	294.62
2026-04-17	Q	MKSI	277.17	281.77	275.00	278.59	8.70	947,849	17,416	271.26	340.00
2026-04-16	Q	MKSI	267.92	272.505	263.00	269.89	0.89	1,372,257	15,213	269.50	275.00
2026-04-15	Q	MKSI	269.57	272.92	261.89	269.00	-5.15	784,256	14,815	259.61	276.85
2026-04-14	Q	MKSI	275.97	277.94	269.95	274.15	0.97	1,001,680	15,093	274.25	274.90
2026-04-13	Q	MKSI	266.645	273.545	265.28	273.18	4.41	561,128	12,683	265.58	280.95
2026-04-10	Q	MKSI	268.26	272.71	266.00	268.77	5.52	789,052	14,989	268.92	271.00
2026-04-09	Q	MKSI	255.22	267.065	255.22	263.25	7.24	1,058,361	16,636	262.69	278.90
2026-04-08	Q	MKSI	256.99	260.99	250.00	256.01	17.84	1,569,256	19,683	250.00	255.88
2026-04-07	Q	MKSI	233.96	241.90	232.92	238.17	1.19	810,665	12,133	250.00	283.31
2026-04-06	Q	MKSI	236.11	240.82	233.115	236.98	2.32	523,478	10,635	233.07	240.00
2026-04-03	Q	MKSI	222.42	241.11	222.42	234.66	-1.30	0	0	227.73	241.05
2026-04-02	Q	MKSI	222.42	241.11	222.42	234.66	-1.30	885,252	13,784	227.73	241.05
2026-04-01	Q	MKSI	234.57	240.00	233.10	235.96	6.15	1,014,747	14,506	234.50	260.00
2026-03-31	Q	MKSI	217.46	231.16	215.00	229.81	19.34	1,235,755	17,258	229.82	232.00
2026-03-30	Q	MKSI	227.97	227.97	208.47	210.47	-12.71	1,250,461	17,323	205.00	211.20
2026-03-27	Q	MKSI	222.08	228.57	221.16	223.18	-1.94	721,825	13,484	221.85	232.10
2026-03-26	Q	MKSI	237.00	239.21	224.04	225.12	-18.56	1,111,335	13,344	225.00	227.40
2026-03-25	Q	MKSI	244.64	245.70	236.00	243.68	0.12	741,226	13,347	244.00	251.87
2026-03-24	Q	MKSI	231.49	247.895	229.08	243.56	8.54	895,847	13,646	235.09	257.90
2026-03-23	Q	MKSI	234.87	243.50	232.61	235.02	7.89	823,456	13,770	230.00	245.27
2026-03-20	Q	MKSI	235.70	237.95	222.10	227.13	-9.72	1,882,829	15,601	208.10	247.71
2026-03-19	Q	MKSI	224.32	239.36	220.14	236.85	3.46	1,495,321	17,116	237.00	245.14
2026-03-18	Q	MKSI	231.21	235.25	228.2264	233.39	4.50	1,279,846	15,349	231.50	241.25
2026-03-17	Q	MKSI	223.20	230.62	220.74	228.89	6.93	1,052,946	15,949	222.34	236.61
2026-03-16	Q	MKSI	218.99	227.455	217.92	221.96	8.51	1,522,748	18,028	218.00	224.80