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 — 2005

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2005-12-30$17.89$17.89138,600
2005-12-29$18.27$18.27123,900
2005-12-28$18.28$18.2867,300
2005-12-27$18.28$18.28191,700
2005-12-23$18.35$18.3581,200
2005-12-22$18.32$18.3270,700
2005-12-21$17.96$17.96131,900
2005-12-20$17.67$17.6798,200
2005-12-19$17.49$17.49157,900
2005-12-16$18.17$18.17352,700
2005-12-15$18.30$18.30363,500
2005-12-14$18.99$18.99130,000
2005-12-13$19.33$19.33114,300
2005-12-12$19.40$19.40147,300
2005-12-09$19.22$19.22181,100
2005-12-08$19.22$19.22145,200
2005-12-07$19.39$19.39242,300
2005-12-06$19.33$19.33339,200
2005-12-05$19.11$19.11229,500
2005-12-02$19.69$19.69124,900
2005-12-01$19.52$19.52201,100
2005-11-30$18.87$18.87152,600
2005-11-29$18.61$18.61167,800
2005-11-28$18.73$18.73165,200
2005-11-25$18.95$18.95111,100
2005-11-23$19.00$19.00114,300
2005-11-22$19.22$19.22263,300
2005-11-21$19.26$19.26136,600
2005-11-18$19.16$19.16104,900
2005-11-17$18.83$18.83198,200
2005-11-16$18.69$18.69137,600
2005-11-15$18.81$18.81169,800
2005-11-14$19.07$19.07174,600
2005-11-11$19.21$19.21150,300
2005-11-10$19.00$19.00191,100
2005-11-09$18.84$18.84228,900
2005-11-08$18.84$18.84215,200
2005-11-07$18.71$18.71306,400
2005-11-04$18.71$18.71219,100
2005-11-03$19.14$19.14325,600
2005-11-02$18.98$18.98181,800
2005-11-01$18.56$18.56311,300
2005-10-31$18.87$18.87452,600
2005-10-28$17.76$17.76389,200
2005-10-27$17.43$17.43189,300
2005-10-26$17.98$17.98293,300
2005-10-25$18.36$18.36187,900
2005-10-24$18.45$18.45210,400
2005-10-21$18.36$18.36314,700
2005-10-20$18.34$18.34395,800
2005-10-19$18.22$18.22397,500
2005-10-18$17.60$17.60167,600
2005-10-17$17.71$17.71160,000
2005-10-14$17.59$17.59339,300
2005-10-13$17.64$17.64331,300
2005-10-12$17.32$17.32297,700
2005-10-11$17.21$17.21309,100
2005-10-10$17.48$17.48212,700
2005-10-07$17.82$17.82196,000
2005-10-06$17.49$17.49451,800
2005-10-05$17.59$17.59279,600
2005-10-04$17.97$17.97263,300
2005-10-03$17.64$17.64260,800
2005-09-30$17.23$17.23165,600
2005-09-29$16.97$16.97172,600
2005-09-28$16.61$16.61127,800
2005-09-27$16.42$16.42261,200
2005-09-26$16.53$16.53324,200
2005-09-23$16.60$16.60253,500
2005-09-22$15.96$15.96300,300
2005-09-21$15.56$15.56366,800
2005-09-20$16.24$16.24201,300
2005-09-19$16.44$16.44150,900
2005-09-16$16.49$16.49484,900
2005-09-15$16.98$16.98127,300
2005-09-14$17.34$17.34118,200
2005-09-13$17.61$17.6182,000
2005-09-12$17.87$17.8773,500
2005-09-09$17.99$17.99103,900
2005-09-08$17.51$17.5171,400
2005-09-07$17.66$17.6689,400
2005-09-06$17.43$17.43118,100
2005-09-02$17.22$17.22150,200
2005-09-01$17.43$17.43271,700
2005-08-31$17.76$17.76253,800
2005-08-30$17.72$17.72142,300
2005-08-29$17.89$17.89181,600
2005-08-26$17.49$17.49369,200
2005-08-25$17.89$17.89202,300
2005-08-24$17.98$17.98155,600
2005-08-23$18.27$18.27156,100
2005-08-22$18.62$18.62190,800
2005-08-19$18.49$18.49120,700
2005-08-18$18.37$18.37275,700
2005-08-17$18.12$18.12459,200
2005-08-16$17.24$17.24182,000
2005-08-15$17.80$17.80239,500
2005-08-12$17.83$17.83232,000
2005-08-11$18.21$18.21203,400
2005-08-10$17.81$17.81359,200
2005-08-09$17.46$17.46164,700
2005-08-08$17.22$17.22302,900
2005-08-05$17.56$17.56296,700
2005-08-04$17.83$17.83288,500
2005-08-03$18.42$18.42137,300
2005-08-02$18.94$18.94227,000
2005-08-01$18.76$18.76251,300
2005-07-29$19.11$19.11261,000
2005-07-28$18.98$18.98250,400
2005-07-27$18.83$18.83274,700
2005-07-26$19.05$19.05269,300
2005-07-25$19.11$19.11173,700
2005-07-22$19.48$19.48358,300
2005-07-21$19.51$19.51622,900
2005-07-20$20.62$20.62727,200
2005-07-19$18.99$18.9980,600
2005-07-18$18.39$18.39276,900
2005-07-15$19.05$19.05340,200
2005-07-14$18.81$18.81225,400
2005-07-13$18.30$18.30139,100
2005-07-12$18.55$18.55199,300
2005-07-11$18.21$18.21145,400
2005-07-08$17.71$17.71252,400
2005-07-07$16.91$16.91243,300
2005-07-06$16.85$16.85290,400
2005-07-05$16.91$16.91335,200
2005-07-01$17.08$17.08150,800
2005-06-30$16.89$16.89251,100
2005-06-29$17.21$17.21146,300
2005-06-28$17.23$17.23200,900
2005-06-27$16.95$16.95135,400
2005-06-24$17.25$17.25464,600
2005-06-23$17.50$17.50236,900
2005-06-22$17.52$17.52172,600
2005-06-21$17.39$17.3982,800
2005-06-20$17.27$17.2768,200
2005-06-17$17.54$17.54238,500
2005-06-16$17.67$17.67215,100
2005-06-15$17.64$17.64149,500
2005-06-14$17.67$17.67140,300
2005-06-13$17.57$17.57154,000
2005-06-10$17.59$17.59113,000
2005-06-09$17.87$17.87212,100
2005-06-08$17.22$17.22125,200
2005-06-07$16.93$16.93212,800
2005-06-06$16.93$16.93170,300
2005-06-03$17.15$17.15279,100
2005-06-02$17.22$17.22271,600
2005-06-01$16.79$16.79792,100
2005-05-31$16.69$16.69270,200
2005-05-27$16.68$16.68149,500
2005-05-26$16.80$16.80320,400
2005-05-25$16.40$16.40342,600
2005-05-24$16.74$16.74312,700
2005-05-23$16.55$16.55362,000
2005-05-20$16.40$16.40204,800
2005-05-19$16.46$16.46152,500
2005-05-18$16.57$16.57242,400
2005-05-17$16.41$16.41137,600
2005-05-16$16.38$16.38180,600
2005-05-13$16.02$16.02290,700
2005-05-12$15.35$15.35196,400
2005-05-11$15.58$15.58177,700
2005-05-10$15.45$15.45127,200
2005-05-09$15.84$15.84171,000
2005-05-06$15.72$15.7296,400
2005-05-05$15.58$15.58206,600
2005-05-04$15.49$15.49181,000
2005-05-03$15.14$15.14252,900
2005-05-02$15.19$15.19260,800
2005-04-29$14.80$14.80500,300
2005-04-28$14.84$14.84617,800
2005-04-27$14.83$14.83458,800
2005-04-26$14.93$14.93350,100
2005-04-25$15.18$15.18132,600
2005-04-22$15.18$15.18307,100
2005-04-21$15.65$15.65197,500
2005-04-20$15.35$15.35369,300
2005-04-19$15.32$15.32342,300
2005-04-18$14.52$14.52408,400
2005-04-15$14.43$14.43251,700
2005-04-14$14.88$14.88197,500
2005-04-13$15.05$15.05214,300
2005-04-12$15.70$15.70286,100
2005-04-11$15.88$15.88112,800
2005-04-08$16.19$16.19262,700
2005-04-07$16.18$16.18182,700
2005-04-06$15.76$15.76194,800
2005-04-05$15.98$15.98775,500
2005-04-04$15.71$15.71244,700
2005-04-01$15.71$15.71448,200
2005-03-31$15.88$15.88351,500
2005-03-30$15.69$15.69190,200
2005-03-29$15.06$15.06158,900
2005-03-28$15.54$15.54206,500
2005-03-24$15.56$15.56155,200
2005-03-23$15.65$15.65188,200
2005-03-22$15.52$15.52249,200
2005-03-21$15.89$15.89127,400
2005-03-18$15.85$15.85312,500
2005-03-17$16.33$16.33404,600
2005-03-16$16.04$16.04613,300
2005-03-15$15.89$15.89363,000
2005-03-14$16.62$16.62314,000
2005-03-11$16.46$16.46396,800
2005-03-10$16.66$16.66724,200
2005-03-09$17.02$17.02603,600
2005-03-08$17.56$17.56241,400
2005-03-07$17.95$17.95285,000
2005-03-04$17.79$17.79242,000
2005-03-03$17.95$17.95265,100
2005-03-02$18.17$18.17280,300
2005-03-01$18.80$18.80327,600
2005-02-28$18.49$18.49505,200
2005-02-25$18.74$18.74453,500
2005-02-24$18.28$18.28526,500
2005-02-23$17.73$17.73492,500
2005-02-22$17.68$17.68367,400
2005-02-18$18.04$18.04276,500
2005-02-17$17.91$17.91280,300
2005-02-16$18.17$18.17522,900
2005-02-15$18.25$18.25683,400
2005-02-14$17.74$17.74656,700
2005-02-11$18.10$18.101,688,300
2005-02-10$17.11$17.11486,700
2005-02-09$17.04$17.04406,600
2005-02-08$17.56$17.561,011,500
2005-02-07$16.53$16.53245,600
2005-02-04$16.71$16.71279,700
2005-02-03$15.90$15.90205,700
2005-02-02$15.96$15.96240,900
2005-02-01$16.00$16.00201,600
2005-01-31$15.65$15.65256,300
2005-01-28$15.26$15.26212,400
2005-01-27$15.79$15.79221,600
2005-01-26$15.66$15.66314,500
2005-01-25$15.18$15.18372,400
2005-01-24$14.51$14.51284,700
2005-01-21$15.01$15.01261,700
2005-01-20$15.25$15.25299,000
2005-01-19$15.19$15.19369,900
2005-01-18$15.50$15.50217,200
2005-01-14$15.18$15.18228,500
2005-01-13$14.80$14.80370,200
2005-01-12$15.19$15.19496,100
2005-01-11$15.07$15.07705,800
2005-01-10$15.68$15.68354,000
2005-01-07$16.03$16.03501,700
2005-01-06$16.43$16.43473,500
2005-01-05$16.71$16.71698,400
2005-01-04$17.33$17.33609,300
2005-01-03$18.23$18.23449,400