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.

View year

Historical Stock Price — 2026

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
2026-04-14$274.15$334.401,001,700
2026-04-13$273.18$333.22560,700
2026-04-10$268.77$327.84789,000
2026-04-09$263.25$321.101,058,300
2026-04-08$256.01$312.271,570,000
2026-04-07$238.17$290.51811,300
2026-04-06$236.98$289.06523,500
2026-04-02$234.66$286.23885,200
2026-04-01$235.96$287.821,014,500
2026-03-31$229.81$280.321,235,800
2026-03-30$210.47$256.721,250,300
2026-03-27$223.18$272.23721,800
2026-03-26$225.12$274.591,111,300
2026-03-25$243.68$297.23741,500
2026-03-24$243.56$297.09895,800
2026-03-23$235.02$286.67823,500
2026-03-20$227.13$277.051,882,500
2026-03-19$236.85$288.901,495,200
2026-03-18$233.39$284.681,279,800
2026-03-17$228.89$279.191,052,900
2026-03-16$221.96$270.741,522,600
2026-03-13$213.45$260.36757,400
2026-03-12$213.49$260.411,526,900
2026-03-11$224.27$273.561,051,000
2026-03-10$225.28$274.791,221,700
2026-03-09$218.36$266.352,051,400
2026-03-06$210.00$256.151,783,000
2026-03-05$230.45$281.101,333,000
2026-03-04$235.23$286.931,137,900
2026-03-03$232.56$283.671,407,600
2026-03-02$244.26$297.941,069,300
2026-02-27$244.46$298.181,862,000
2026-02-26$244.68$298.452,139,500
2026-02-25$255.91$312.151,097,400
2026-02-24$251.41$306.661,359,600
2026-02-23$253.71$309.47895,700
2026-02-20$259.27$315.941,950,200
2026-02-19$249.08$303.531,447,400
2026-02-18$250.36$305.093,024,200
2026-02-17$262.94$320.423,505,400
2026-02-13$260.74$317.741,663,200
2026-02-12$249.42$303.941,343,000
2026-02-11$259.05$315.682,237,700
2026-02-10$252.52$307.721,641,200
2026-02-09$250.60$305.381,336,300
2026-02-06$242.96$296.071,510,100
2026-02-05$226.83$276.411,785,000
2026-02-04$220.00$268.092,359,300
2026-02-03$229.58$279.761,941,900
2026-02-02$233.57$284.633,561,800
2026-01-30$235.41$286.871,518,100
2026-01-29$243.88$297.192,639,000
2026-01-28$236.05$287.652,885,300
2026-01-27$229.60$279.792,247,000
2026-01-26$218.70$266.511,048,900
2026-01-23$217.06$264.511,317,700
2026-01-22$223.00$271.751,885,200
2026-01-21$220.73$268.981,957,800
2026-01-20$210.66$256.711,799,400
2026-01-16$203.99$248.581,611,900
2026-01-15$205.26$250.132,046,500
2026-01-14$190.30$231.90845,000
2026-01-13$193.28$235.531,134,400
2026-01-12$185.92$226.56609,900
2026-01-09$186.08$226.76640,400
2026-01-08$178.98$218.10532,100
2026-01-07$183.22$223.27646,700
2026-01-06$183.50$223.611,046,000
2026-01-05$176.19$214.701,062,500
2026-01-02$168.36$205.16881,600