NASDAQ:MKSI | Stock Price History | 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.

Historical Stock Price

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2026-09-04$256.7275,824
2026-09-03$249.5269,106
2026-09-02$246.5956,227
2026-09-01$251.1596,169
2026-08-31$258.7944,775
2026-08-28$266.99118,105
2026-08-27$270.99$331.10792,100$280.7961,583
2026-08-26$271.75$332.031,702,900$268.7358,073
2026-08-25$270.48$330.481,157,600$273.3075,909
2026-08-24$269.06$328.441,884,300$270.0886,355
2026-08-21$279.11$340.71927,900$283.1367,799
2026-08-20$281.88$344.091,113,200$283.3262,866
2026-08-19$281.60$343.751,535,800$302.5479,509
2026-08-18$300.24$366.501,426,300$303.8774,260
2026-08-17$320.74$391.521,172,400$317.0546,598
2026-08-14$310.73$379.311,178,200$301.5660,220
2026-08-13$306.29$373.89946,600$306.8947,402
2026-08-12$306.83$374.541,210,600$308.1594,582
2026-08-11$294.38$359.35698,600$299.4744,093
2026-08-10$292.35$356.871,068,300$308.3635,317
2026-08-07$304.99$372.301,269,500$301.2592,002
2026-08-06$291.31$355.602,839,900$291.82293,831
2026-08-05$313.10$382.202,366,200$318.05107,950
2026-08-04$320.76$391.552,892,300$325.49139,777
2026-08-03$309.98$378.391,404,400$291.56145,758
2026-07-31$297.45$363.091,143,000$307.3289,851
2026-07-30$293.30$358.033,023,100$287.19242,223
2026-07-29$257.61$314.462,509,600$280.25181,615
2026-07-28$285.31$348.281,987,900$295.57194,759
2026-07-27$315.70$385.371,391,000$329.95101,897
2026-07-24$329.18$401.83849,700$341.0952,722
2026-07-23$345.30$421.50752,100$340.1052,292
2026-07-22$344.84$420.94801,000$332.3357,157
2026-07-21$345.44$421.681,106,400$345.6990,823
2026-07-20$324.28$395.85812,900$332.7253,105
2026-07-17$324.69$396.351,893,400
2026-07-16$332.00$405.271,112,200
2026-07-15$353.80$431.881,403,100
2026-07-14$358.43$437.53828,600
2026-07-13$352.03$429.72851,900
2026-07-10$368.58$449.92862,600
2026-07-09$368.78$450.171,256,700
2026-07-08$349.39$426.501,228,300
2026-07-07$349.57$426.721,886,600
2026-07-06$368.06$449.291,277,800
2026-07-02$365.56$446.242,165,700
2026-07-01$411.05$501.761,536,000
2026-06-30$444.80$542.962,230,200
2026-06-29$416.00$507.812,105,700
2026-06-26$388.61$474.372,025,700
2026-06-25$410.31$500.862,436,500
2026-06-24$381.62$465.841,804,700
2026-06-23$389.17$475.061,640,700
2026-06-22$420.56$513.371,547,000
2026-06-18$406.37$496.052,126,800
2026-06-17$371.26$453.191,196,800
2026-06-16$366.31$447.151,090,100
2026-06-15$375.32$458.15914,900
2026-06-12$355.69$434.19960,200
2026-06-11$345.32$421.531,005,600
2026-06-10$316.07$385.821,270,100
2026-06-09$320.96$391.791,205,400
2026-06-08$312.09$380.971,099,600
2026-06-05$301.65$368.22955,300
2026-06-04$330.23$403.11679,100
2026-06-03$335.15$409.11716,600
2026-06-02$331.36$404.181,125,400
2026-06-01$317.62$387.421,037,100
2026-05-29$324.26$395.521,204,500
2026-05-28$323.41$394.491,106,900
2026-05-27$328.01$400.10910,900
2026-05-26$334.11$407.54861,100
2026-05-22$320.62$391.08835,800
2026-05-21$313.16$381.981,361,700
2026-05-20$311.51$379.971,129,700
2026-05-19$294.04$358.661,494,900
2026-05-18$295.70$360.691,486,300
2026-05-15$303.17$369.801,214,400
2026-05-14$313.81$382.78984,100
2026-05-13$317.31$387.05923,700
2026-05-12$311.72$380.231,480,100
2026-05-11$319.71$389.971,227,000
2026-05-08$313.21$382.041,736,500
2026-05-07$300.79$366.892,327,600
2026-05-06$293.77$358.332,303,400
2026-05-05$287.65$350.871,537,400
2026-05-04$291.53$355.601,908,900
2026-05-01$279.38$340.781,300,600
2026-04-30$283.75$346.111,632,200
2026-04-29$265.44$323.78796,700
2026-04-28$267.90$326.781,078,200
2026-04-27$278.36$339.54817,400
2026-04-24$280.98$342.73845,300
2026-04-23$280.56$342.221,208,000
2026-04-22$278.45$339.641,704,200
2026-04-21$273.77$333.94957,200
2026-04-20$279.93$341.45946,500
2026-04-17$278.59$339.82947,800
2026-04-16$269.89$329.201,372,200
2026-04-15$269.00$328.12784,500