MKS Inc. (MKSI)
NASDAQ: MKSI · Real-Time Price · USD
406.37
+35.11 (9.46%)
At close: Jun 18, 2026, 4:00 PM EDT
398.00
-8.37 (-2.06%)
After-hours: Jun 18, 2026, 7:59 PM EDT

MKS Inc. Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Jun 18, 2026386.56408.87382.00406.37406.379.46%2,111,472
Jun 17, 2026383.99386.01369.85371.26371.261.35%1,196,667
Jun 16, 2026375.00379.99365.36366.31366.31-2.40%1,089,788
Jun 15, 2026367.88377.66367.88375.32375.325.52%915,164
Jun 12, 2026345.32359.35341.45355.69355.693.00%961,425
Jun 11, 2026326.74347.27326.10345.32345.329.25%1,005,552
Jun 10, 2026317.42333.69310.36316.07316.07-1.52%1,270,123
Jun 9, 2026320.44332.01298.00320.96320.962.84%1,205,404
Jun 8, 2026314.99339.92309.03312.09312.093.46%1,099,657
Jun 5, 2026315.23318.88300.11301.65301.65-8.65%955,719
Jun 4, 2026321.01335.83318.01330.23330.23-1.47%679,273
Jun 3, 2026339.40341.81326.81335.15335.151.22%716,706
Jun 2, 2026324.36334.49320.38331.36331.114.33%1,125,569
Jun 1, 2026318.02319.31309.46317.62317.38-2.05%1,037,103
May 29, 2026325.99329.75317.16324.26324.020.26%1,204,480
May 28, 2026327.41330.26316.35323.41323.17-1.40%1,106,907
May 27, 2026338.58339.00321.45328.01327.76-1.83%911,291
May 26, 2026330.50334.80326.45334.11333.864.21%861,070
May 22, 2026315.48322.00311.75320.62320.382.38%835,816
May 21, 2026311.51314.04307.18313.16312.920.53%1,361,932
May 20, 2026302.00312.74300.09311.51311.275.94%1,129,951
May 19, 2026289.56294.27280.83294.04293.82-0.56%1,495,004
May 18, 2026314.51315.12290.00295.70295.48-2.46%1,486,353
May 15, 2026301.43304.71295.08303.17302.94-3.39%1,214,573
May 14, 2026317.31317.43308.51313.81313.57-1.10%984,259
May 13, 2026318.99321.52311.66317.31317.071.79%923,780
May 12, 2026312.78313.38298.16311.72311.48-2.50%1,480,108
May 11, 2026313.47321.65313.47319.71319.472.08%1,227,047
May 8, 2026318.70324.42308.83313.21312.974.13%1,736,811
May 7, 2026316.17326.84295.77300.79300.562.39%2,327,555
May 6, 2026294.92294.92280.50293.77293.552.13%2,303,432
May 5, 2026297.02298.00280.18287.65287.43-1.33%1,537,423
May 4, 2026277.72292.12277.55291.53291.314.35%1,908,899
May 1, 2026282.98285.67275.04279.38279.17-1.54%1,300,898
Apr 30, 2026270.18284.14263.73283.75283.546.90%1,632,571
Apr 29, 2026273.88278.91261.23265.44265.24-0.92%796,663
Apr 28, 2026268.88277.00264.45267.90267.70-3.76%1,078,299
Apr 27, 2026282.57283.61267.94278.36278.15-0.93%817,585
Apr 24, 2026290.00294.05279.38280.98280.770.15%845,450
Apr 23, 2026280.28287.00272.97280.56280.350.76%1,208,149
Apr 22, 2026280.97282.62266.85278.45278.241.71%1,704,302
Apr 21, 2026283.57289.49271.19273.77273.56-2.20%957,319
Apr 20, 2026279.01285.82278.00279.93279.720.48%946,469
Apr 17, 2026277.17281.77275.00278.59278.383.22%947,849
Apr 16, 2026267.92272.51263.00269.89269.690.33%1,372,385
Apr 15, 2026269.57272.92261.89269.00268.80-1.88%784,452
Apr 14, 2026275.97277.94269.95274.15273.940.36%1,001,709
Apr 13, 2026266.65273.55265.28273.18272.971.64%561,128
Apr 10, 2026268.26272.71266.00268.77268.572.10%789,057
Apr 9, 2026255.22267.07255.22263.25263.052.83%1,058,552