NASDAQ:MKSI | Historical Stock Price | MKS INC

Complete retained daily price history on its own workbook tab. Split-adjusted close keeps every historical share price on one comparable split basis. Cumulative dividend-reinvested close is the daily close of a rebased total-return index: it starts with one share at the earliest retained close, reinvests every distribution, and normalizes every forward and reverse split exactly once. Admitted exchange opening prices remain a distinct current-session series.

Available history
1999-03-30 to 2026-09-04
Data captured

Stock Price Chart

Blue: Split-adjusted close · Orange: Cumulative dividend-reinvested close

$9.31$20.64$45.74$101.38$224.72$498.091999-03-302026-08-27

Logarithmic scale. Both lines share the same starting value for the selected range.

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Historical Stock Price — 2006

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2006-12-29$22.58$22.58286,100
2006-12-28$22.98$22.98258,200
2006-12-27$22.95$22.95317,900
2006-12-26$22.64$22.64318,700
2006-12-22$22.07$22.07330,700
2006-12-21$22.27$22.27351,800
2006-12-20$22.39$22.39926,800
2006-12-19$22.55$22.554,160,800
2006-12-18$22.58$22.581,258,400
2006-12-15$21.78$21.781,196,300
2006-12-14$21.11$21.11308,400
2006-12-13$20.85$20.85339,800
2006-12-12$21.09$21.09412,200
2006-12-11$21.04$21.04760,500
2006-12-08$20.82$20.82376,400
2006-12-07$20.66$20.66703,700
2006-12-06$20.67$20.671,314,600
2006-12-05$20.94$20.94396,400
2006-12-04$21.01$21.01774,400
2006-12-01$20.75$20.75461,300
2006-11-30$20.77$20.77563,900
2006-11-29$20.76$20.76399,600
2006-11-28$20.56$20.56709,700
2006-11-27$20.60$20.60618,200
2006-11-24$21.06$21.06136,700
2006-11-22$21.22$21.22219,600
2006-11-21$21.16$21.16561,800
2006-11-20$21.05$21.05977,400
2006-11-17$21.00$21.00719,600
2006-11-16$21.39$21.39316,700
2006-11-15$21.51$21.51577,400
2006-11-14$21.76$21.76557,300
2006-11-13$21.53$21.53310,200
2006-11-10$21.27$21.27252,000
2006-11-09$20.73$20.73472,400
2006-11-08$21.30$21.30362,600
2006-11-07$21.55$21.55381,700
2006-11-06$21.22$21.22350,300
2006-11-03$20.66$20.66273,000
2006-11-02$20.50$20.50426,600
2006-11-01$20.55$20.55584,500
2006-10-31$21.65$21.65312,900
2006-10-30$21.52$21.52453,300
2006-10-27$21.63$21.63349,700
2006-10-26$22.29$22.29533,500
2006-10-25$21.60$21.60381,300
2006-10-24$21.44$21.44270,400
2006-10-23$21.80$21.80320,700
2006-10-20$21.65$21.65304,700
2006-10-19$21.67$21.67304,500
2006-10-18$21.61$21.61729,200
2006-10-17$21.95$21.95245,200
2006-10-16$22.07$22.07258,800
2006-10-13$21.87$21.87445,000
2006-10-12$21.40$21.40457,000
2006-10-11$21.04$21.04448,400
2006-10-10$20.80$20.80259,400
2006-10-09$21.17$21.17280,900
2006-10-06$20.65$20.65276,400
2006-10-05$20.71$20.71218,700
2006-10-04$20.27$20.27304,300
2006-10-03$19.78$19.78254,500
2006-10-02$20.22$20.22404,900
2006-09-29$20.31$20.31453,400
2006-09-28$20.65$20.65401,900
2006-09-27$20.61$20.61327,400
2006-09-26$20.74$20.74270,600
2006-09-25$20.90$20.90306,500
2006-09-22$20.33$20.33243,700
2006-09-21$20.44$20.44242,100
2006-09-20$20.88$20.88213,500
2006-09-19$20.41$20.41318,100
2006-09-18$20.63$20.63359,000
2006-09-15$20.50$20.50558,400
2006-09-14$20.10$20.10371,500
2006-09-13$20.36$20.36234,600
2006-09-12$20.43$20.43223,200
2006-09-11$19.87$19.87200,300
2006-09-08$20.20$20.20136,000
2006-09-07$20.34$20.34179,200
2006-09-06$20.15$20.15195,400
2006-09-05$20.92$20.92235,700
2006-09-01$21.01$21.01252,500
2006-08-31$20.89$20.89162,900
2006-08-30$20.99$20.99368,100
2006-08-29$20.45$20.45487,700
2006-08-28$20.62$20.62270,800
2006-08-25$20.20$20.20193,200
2006-08-24$20.32$20.32266,100
2006-08-23$20.28$20.28215,800
2006-08-22$20.68$20.68197,300
2006-08-21$20.62$20.62214,900
2006-08-18$20.91$20.91158,700
2006-08-17$20.76$20.76454,800
2006-08-16$21.03$21.03567,800
2006-08-15$20.18$20.18458,100
2006-08-14$18.97$18.97348,500
2006-08-11$18.89$18.89216,800
2006-08-10$19.45$19.45269,400
2006-08-09$19.45$19.45272,300
2006-08-08$19.40$19.40301,800
2006-08-07$19.86$19.86234,200
2006-08-04$20.12$20.12385,300
2006-08-03$20.52$20.52298,200
2006-08-02$20.32$20.32343,500
2006-08-01$20.05$20.05398,100
2006-07-31$20.67$20.67553,500
2006-07-28$21.01$21.01943,600
2006-07-27$20.99$20.992,037,400
2006-07-26$18.65$18.65344,200
2006-07-25$18.79$18.79386,100
2006-07-24$18.72$18.72261,800
2006-07-21$18.09$18.09422,800
2006-07-20$18.65$18.65387,000
2006-07-19$19.24$19.24386,400
2006-07-18$18.40$18.40240,100
2006-07-17$18.60$18.60179,600
2006-07-14$18.69$18.69222,700
2006-07-13$18.87$18.87184,500
2006-07-12$19.29$19.29415,200
2006-07-11$19.26$19.26334,800
2006-07-10$18.84$18.84292,000
2006-07-07$19.29$19.29150,700
2006-07-06$19.77$19.77517,000
2006-07-05$19.76$19.76159,900
2006-07-03$20.47$20.47110,100
2006-06-30$20.12$20.12555,700
2006-06-29$20.52$20.52239,300
2006-06-28$19.53$19.53216,900
2006-06-27$19.58$19.58443,300
2006-06-26$19.75$19.75335,300
2006-06-23$19.34$19.34544,900
2006-06-22$19.39$19.39519,100
2006-06-21$18.92$18.92370,100
2006-06-20$18.91$18.91308,400
2006-06-19$19.13$19.13270,800
2006-06-16$19.28$19.28754,900
2006-06-15$19.85$19.85360,200
2006-06-14$19.36$19.36326,900
2006-06-13$19.25$19.25372,300
2006-06-12$19.50$19.50231,700
2006-06-09$20.25$20.25148,500
2006-06-08$20.60$20.60244,000
2006-06-07$20.45$20.45372,500
2006-06-06$21.11$21.11247,600
2006-06-05$20.96$20.96283,600
2006-06-02$21.57$21.57480,300
2006-06-01$22.23$22.23392,200
2006-05-31$21.83$21.83796,000
2006-05-30$20.85$20.85417,000
2006-05-26$20.58$20.58265,400
2006-05-25$20.35$20.35368,700
2006-05-24$20.31$20.31434,000
2006-05-23$20.80$20.80307,700
2006-05-22$20.73$20.73747,800
2006-05-19$21.38$21.38462,300
2006-05-18$20.89$20.89351,800
2006-05-17$21.53$21.53409,200
2006-05-16$21.97$21.97622,600
2006-05-15$21.98$21.981,234,200
2006-05-12$22.80$22.80220,000
2006-05-11$22.87$22.87303,300
2006-05-10$24.00$24.00350,600
2006-05-09$24.60$24.60531,600
2006-05-08$24.35$24.35232,100
2006-05-05$24.49$24.49258,000
2006-05-04$24.52$24.52427,000
2006-05-03$24.13$24.13366,700
2006-05-02$23.62$23.62574,600
2006-05-01$22.97$22.97565,600
2006-04-28$23.79$23.79794,000
2006-04-27$23.97$23.97798,500
2006-04-26$24.09$24.09308,800
2006-04-25$24.40$24.40222,100
2006-04-24$24.19$24.19343,300
2006-04-21$24.13$24.13324,100
2006-04-20$24.56$24.56324,500
2006-04-19$24.49$24.49617,300
2006-04-18$23.54$23.54259,100
2006-04-17$22.76$22.76197,300
2006-04-13$23.21$23.21168,600
2006-04-12$22.94$22.94204,600
2006-04-11$22.88$22.88344,500
2006-04-10$22.38$22.38452,300
2006-04-07$23.21$23.21361,000
2006-04-06$23.61$23.61293,200
2006-04-05$23.42$23.42233,900
2006-04-04$23.12$23.12337,300
2006-04-03$23.63$23.63324,000
2006-03-31$23.43$23.43234,200
2006-03-30$23.16$23.16327,800
2006-03-29$23.34$23.34351,100
2006-03-28$23.25$23.25284,300
2006-03-27$23.41$23.41246,600
2006-03-24$23.38$23.38197,900
2006-03-23$23.11$23.11337,200
2006-03-22$22.61$22.61268,100
2006-03-21$22.49$22.49435,400
2006-03-20$22.57$22.57370,500
2006-03-17$22.66$22.66542,700
2006-03-16$22.62$22.62567,000
2006-03-15$23.25$23.25375,700
2006-03-14$22.97$22.97546,200
2006-03-13$22.03$22.03183,100
2006-03-10$21.95$21.95238,800
2006-03-09$21.72$21.72318,700
2006-03-08$22.06$22.06322,900
2006-03-07$21.97$21.97321,400
2006-03-06$22.20$22.20384,100
2006-03-03$22.30$22.30220,900
2006-03-02$22.51$22.51661,400
2006-03-01$22.89$22.89533,000
2006-02-28$22.36$22.36488,200
2006-02-27$22.57$22.57481,500
2006-02-24$22.55$22.55577,400
2006-02-23$22.43$22.43398,800
2006-02-22$22.79$22.79700,700
2006-02-21$22.98$22.98470,300
2006-02-17$23.20$23.20942,000
2006-02-16$22.42$22.42842,600
2006-02-15$22.40$22.40215,900
2006-02-14$22.26$22.26249,800
2006-02-13$21.96$21.96363,000
2006-02-10$22.08$22.08323,500
2006-02-09$22.00$22.00275,000
2006-02-08$21.87$21.87193,900
2006-02-07$21.50$21.50243,600
2006-02-06$21.64$21.64183,100
2006-02-03$21.24$21.24254,500
2006-02-02$21.47$21.47311,500
2006-02-01$21.97$21.97401,100
2006-01-31$21.75$21.75383,500
2006-01-30$21.81$21.81170,900
2006-01-27$21.78$21.78219,800
2006-01-26$21.85$21.85278,700
2006-01-25$21.17$21.17239,600
2006-01-24$20.70$20.70433,700
2006-01-23$20.79$20.79329,000
2006-01-20$20.39$20.39204,000
2006-01-19$21.08$21.08491,700
2006-01-18$20.17$20.17671,700
2006-01-17$19.21$19.21130,100
2006-01-13$19.33$19.33122,500
2006-01-12$19.53$19.53111,400
2006-01-11$19.61$19.61154,600
2006-01-10$19.51$19.51164,700
2006-01-09$19.61$19.61131,100
2006-01-06$19.33$19.33232,200
2006-01-05$18.88$18.88151,900
2006-01-04$18.85$18.85229,200
2006-01-03$18.55$18.55283,000