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 — 2025

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2025-12-31$159.80$194.73536,100
2025-12-30$161.82$197.19417,300
2025-12-29$162.81$198.40332,900
2025-12-26$164.19$200.08285,200
2025-12-24$163.40$199.12197,100
2025-12-23$162.92$198.53850,600
2025-12-22$161.99$197.40697,600
2025-12-19$159.56$194.441,210,400
2025-12-18$157.01$191.331,291,200
2025-12-17$148.70$181.201,313,500
2025-12-16$156.25$190.41859,800
2025-12-15$159.31$194.131,005,600
2025-12-12$155.77$189.821,442,000
2025-12-11$166.80$203.26716,800
2025-12-10$167.88$204.58929,200
2025-12-09$165.19$201.30947,000
2025-12-08$164.40$200.34669,000
2025-12-05$162.94$198.56809,000
2025-12-04$163.35$199.06843,600
2025-12-03$163.40$199.12877,600
2025-12-02$160.97$196.161,005,600
2025-12-01$155.94$190.031,001,000
2025-11-28$156.39$190.58304,200
2025-11-26$152.02$185.25523,700
2025-11-25$149.00$181.57874,500
2025-11-24$149.95$182.73715,400
2025-11-21$144.00$175.21823,200
2025-11-20$138.49$168.511,185,000
2025-11-19$143.86$175.04902,900
2025-11-18$140.38$170.80821,700
2025-11-17$141.71$172.42845,400
2025-11-14$142.74$173.68830,400
2025-11-13$144.11$175.341,244,800
2025-11-12$153.17$186.37842,600
2025-11-11$152.63$185.71856,000
2025-11-10$158.90$193.341,248,700
2025-11-07$154.80$188.351,522,300
2025-11-06$155.25$188.902,012,000
2025-11-05$139.92$170.251,621,200
2025-11-04$137.20$166.941,165,400
2025-11-03$145.47$177.00951,400
2025-10-31$143.71$174.86994,600
2025-10-30$139.31$169.50917,500
2025-10-29$141.40$172.051,658,600
2025-10-28$140.48$170.93769,300
2025-10-27$145.01$176.44846,300
2025-10-24$142.94$173.92923,800
2025-10-23$140.65$171.13751,200
2025-10-22$134.42$163.551,080,000
2025-10-21$140.73$171.23628,300
2025-10-20$141.58$172.26511,400
2025-10-17$136.52$166.11660,400
2025-10-16$137.75$167.60962,500
2025-10-15$136.42$165.991,234,700
2025-10-14$132.68$161.44668,100
2025-10-13$133.03$161.861,031,700
2025-10-10$121.26$147.541,546,800
2025-10-09$134.26$163.36820,000
2025-10-08$132.97$161.791,363,700
2025-10-07$128.84$156.761,252,100
2025-10-06$139.47$169.701,301,400
2025-10-03$137.86$167.741,330,300
2025-10-02$136.54$166.131,240,100
2025-10-01$131.28$159.731,276,800
2025-09-30$123.77$150.591,010,500
2025-09-29$122.14$148.61727,100
2025-09-26$121.81$148.21886,200
2025-09-25$122.25$148.751,486,000
2025-09-24$123.94$150.801,435,100
2025-09-23$128.52$156.371,704,700
2025-09-22$127.90$155.621,136,600
2025-09-19$128.62$156.505,743,600
2025-09-18$129.92$158.082,366,100
2025-09-17$119.44$145.331,593,100
2025-09-16$118.35$144.001,183,700
2025-09-15$116.38$141.601,195,600
2025-09-12$115.10$140.051,321,800
2025-09-11$116.00$141.141,562,900
2025-09-10$110.60$134.571,184,900
2025-09-09$108.29$131.76991,300
2025-09-08$109.02$132.651,588,100
2025-09-05$104.49$127.14810,100
2025-09-04$101.72$123.77654,100
2025-09-03$100.24$121.97959,600
2025-09-02$101.95$124.05844,900
2025-08-29$103.34$125.74993,200
2025-08-28$107.52$130.82705,900
2025-08-27$105.68$128.58749,300
2025-08-26$106.55$129.641,187,300
2025-08-25$106.22$129.24693,300
2025-08-22$105.25$127.79910,000
2025-08-21$99.42$120.71554,600
2025-08-20$99.37$120.65900,800
2025-08-19$100.68$122.24934,100
2025-08-18$101.10$122.75927,300
2025-08-15$100.22$121.691,054,900
2025-08-14$104.73$127.16852,700
2025-08-13$104.36$126.71900,900
2025-08-12$103.45$125.611,403,900
2025-08-11$98.17$119.201,069,600
2025-08-08$99.37$120.651,204,400
2025-08-07$98.77$119.932,057,500
2025-08-06$89.62$108.821,516,600
2025-08-05$92.02$111.73935,800
2025-08-04$94.00$114.13940,600
2025-08-01$92.75$112.621,473,600
2025-07-31$95.18$115.571,799,000
2025-07-30$100.42$121.93983,900
2025-07-29$101.65$123.42854,300
2025-07-28$102.33$124.25832,000
2025-07-25$99.50$120.81607,800
2025-07-24$99.54$120.86749,700
2025-07-23$99.55$120.871,469,900
2025-07-22$102.42$124.36984,900
2025-07-21$103.34$125.47695,100
2025-07-18$104.71$127.14661,600
2025-07-17$103.94$126.20987,700
2025-07-16$101.97$123.811,465,300
2025-07-15$103.92$126.18972,400
2025-07-14$104.68$127.10801,500
2025-07-11$106.45$129.25663,500
2025-07-10$107.00$129.92827,200
2025-07-09$105.78$128.44986,400
2025-07-08$104.53$126.92956,700
2025-07-07$102.18$124.07981,700
2025-07-03$104.56$126.96569,700
2025-07-02$104.62$127.03888,100
2025-07-01$100.72$122.29778,400
2025-06-30$99.36$120.64742,800
2025-06-27$100.21$121.671,483,800
2025-06-26$100.27$121.75858,500
2025-06-25$98.66$119.79781,500
2025-06-24$97.82$118.771,515,500
2025-06-23$92.07$111.791,097,100
2025-06-20$90.71$110.141,747,200
2025-06-18$92.17$111.91548,600
2025-06-17$92.01$111.72606,700
2025-06-16$93.61$113.66799,300
2025-06-13$89.37$108.511,085,300
2025-06-12$93.75$113.83937,900
2025-06-11$93.67$113.73925,200
2025-06-10$94.15$114.321,134,200
2025-06-09$91.59$111.211,131,500
2025-06-06$88.64$107.63509,900
2025-06-05$87.16$105.83721,200
2025-06-04$87.88$106.70821,200
2025-06-03$86.14$104.591,092,300
2025-06-02$82.49$100.16726,900
2025-05-30$82.19$99.791,084,100
2025-05-29$85.40$103.69682,100
2025-05-28$85.29$103.56687,000
2025-05-27$87.45$106.181,141,300
2025-05-23$83.82$101.51767,600
2025-05-22$84.89$102.80724,600
2025-05-21$85.16$103.131,047,700
2025-05-20$89.56$108.46714,300
2025-05-19$88.46$107.13735,000
2025-05-16$90.66$109.79655,700
2025-05-15$91.19$110.431,132,500
2025-05-14$93.94$113.76933,600
2025-05-13$93.32$113.011,295,500
2025-05-12$90.75$109.902,498,600
2025-05-09$80.05$96.941,577,400
2025-05-08$77.29$93.602,063,900
2025-05-07$74.30$89.981,969,400
2025-05-06$72.67$88.001,043,200
2025-05-05$74.47$90.18953,700
2025-05-02$75.83$91.831,465,300
2025-05-01$71.63$86.741,288,400
2025-04-30$70.14$84.941,735,800
2025-04-29$71.44$86.511,464,600
2025-04-28$73.98$89.591,052,600
2025-04-25$74.08$89.71934,400
2025-04-24$74.13$89.771,609,000
2025-04-23$67.91$82.241,802,800
2025-04-22$62.86$76.122,424,000
2025-04-21$60.33$73.062,210,500
2025-04-17$63.72$77.171,641,400
2025-04-16$63.69$77.132,573,000
2025-04-15$67.18$81.361,594,400
2025-04-14$68.48$82.931,887,400
2025-04-11$65.53$79.361,518,400
2025-04-10$64.24$77.792,914,000
2025-04-09$73.20$88.653,811,600
2025-04-08$58.78$71.182,673,100
2025-04-07$62.99$76.283,166,000
2025-04-04$60.29$73.013,901,700
2025-04-03$64.27$77.833,264,600
2025-04-02$81.28$98.43852,600
2025-04-01$80.27$97.211,151,100
2025-03-31$80.15$97.061,426,500
2025-03-28$81.59$98.81825,800
2025-03-27$84.82$102.72870,200
2025-03-26$87.64$106.13758,400
2025-03-25$90.21$109.24524,500
2025-03-24$91.45$110.751,188,600
2025-03-21$88.17$106.771,535,300
2025-03-20$90.57$109.681,315,700
2025-03-19$91.54$110.861,931,900
2025-03-18$87.76$106.28992,900
2025-03-17$88.91$107.671,239,800
2025-03-14$86.32$104.531,915,000
2025-03-13$81.24$98.381,476,300
2025-03-12$81.02$98.121,153,000
2025-03-11$78.89$95.541,413,800
2025-03-10$78.95$95.611,487,100
2025-03-07$84.89$102.801,192,800
2025-03-06$82.52$99.931,614,200
2025-03-05$86.06$104.221,381,500
2025-03-04$85.53$103.582,055,800
2025-03-03$85.63$103.701,285,600
2025-02-28$91.82$111.191,603,800
2025-02-27$91.17$110.411,448,600
2025-02-26$97.24$117.76760,900
2025-02-25$96.04$116.301,428,700
2025-02-24$99.90$120.981,083,200
2025-02-21$103.09$124.58926,000
2025-02-20$107.85$130.33984,100
2025-02-19$106.82$129.08888,400
2025-02-18$105.47$127.45952,100
2025-02-14$103.67$125.28915,800
2025-02-13$103.84$125.481,796,700
2025-02-12$111.20$134.381,003,800
2025-02-11$110.64$133.70896,500
2025-02-10$112.84$136.36798,200
2025-02-07$109.38$132.18652,700
2025-02-06$111.94$135.27589,300
2025-02-05$111.53$134.77952,900
2025-02-04$111.86$135.17553,200
2025-02-03$111.13$134.29727,000
2025-01-31$113.28$136.891,071,500
2025-01-30$112.98$136.531,162,900
2025-01-29$108.45$131.05871,600
2025-01-28$107.34$129.71848,900
2025-01-27$108.53$131.151,701,600
2025-01-24$117.50$141.99637,600
2025-01-23$119.68$144.62869,700
2025-01-22$122.69$148.26996,900
2025-01-21$122.24$147.721,067,900
2025-01-17$120.11$145.141,154,100
2025-01-16$117.23$141.66626,300
2025-01-15$114.05$137.82734,600
2025-01-14$111.11$134.27617,700
2025-01-13$109.73$132.60590,700
2025-01-10$109.07$131.80682,600
2025-01-08$111.16$134.33568,300
2025-01-07$112.86$136.38809,400
2025-01-06$114.59$138.471,202,500
2025-01-03$108.30$130.87874,400
2025-01-02$106.02$128.12577,200