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 — 2020

DateSplit-adjusted closeCumulative dividend-reinvested closeReported volumeOpen priceExchange Volume
2020-12-31$150.45$176.38236,500——
2020-12-30$152.76$179.09160,600——
2020-12-29$150.69$176.66336,200——
2020-12-28$151.27$177.34214,400——
2020-12-24$149.88$175.7160,500——
2020-12-23$147.92$173.41261,400——
2020-12-22$148.38$173.95247,800——
2020-12-21$149.52$175.29198,000——
2020-12-18$149.31$175.04521,500——
2020-12-17$149.97$175.82241,900——
2020-12-16$150.08$175.94286,800——
2020-12-15$152.73$179.05362,600——
2020-12-14$150.41$176.33383,200——
2020-12-11$147.65$173.10257,800——
2020-12-10$149.07$174.76387,200——
2020-12-09$150.10$175.97539,100——
2020-12-08$156.88$183.92389,300——
2020-12-07$155.26$182.02408,900——
2020-12-04$151.71$177.86342,200——
2020-12-03$143.21$167.89275,500——
2020-12-02$143.29$167.98398,000——
2020-12-01$140.00$164.13514,900——
2020-11-30$137.98$161.76240,600——
2020-11-27$138.13$161.94167,800——
2020-11-25$136.25$159.73273,900——
2020-11-24$137.87$161.63247,700——
2020-11-23$138.14$161.95202,900——
2020-11-20$132.35$155.16243,400——
2020-11-19$134.23$157.13129,100——
2020-11-18$133.20$155.92274,700——
2020-11-17$132.07$154.60311,200——
2020-11-16$131.50$153.93209,200——
2020-11-13$127.07$148.75125,600——
2020-11-12$125.20$146.56187,400——
2020-11-11$128.53$150.46213,000——
2020-11-10$125.70$147.14260,400——
2020-11-09$126.98$148.64364,000——
2020-11-06$127.49$149.24231,000——
2020-11-05$126.02$147.52460,000——
2020-11-04$118.30$138.48250,800——
2020-11-03$115.07$134.70269,100——
2020-11-02$112.17$131.31248,400——
2020-10-30$108.39$126.88277,300——
2020-10-29$112.84$132.09425,300——
2020-10-28$109.30$127.95832,400——
2020-10-27$109.80$128.53272,400——
2020-10-26$110.13$128.92243,900——
2020-10-23$113.21$132.52183,700——
2020-10-22$114.25$133.74238,200——
2020-10-21$112.86$132.11181,600——
2020-10-20$113.52$132.89152,000——
2020-10-19$114.26$133.75177,600——
2020-10-16$114.25$133.74227,900——
2020-10-15$116.71$136.62310,600——
2020-10-14$116.86$136.80196,800——
2020-10-13$118.61$138.84374,900——
2020-10-12$119.32$139.67366,300——
2020-10-09$118.88$139.16363,500——
2020-10-08$116.70$136.61209,600——
2020-10-07$114.61$134.16456,700——
2020-10-06$111.24$130.22363,000——
2020-10-05$111.32$130.31540,800——
2020-10-02$108.46$126.96299,600——
2020-10-01$111.48$130.50319,200——
2020-09-30$109.23$127.86366,000——
2020-09-29$110.74$129.63273,000——
2020-09-28$110.49$129.34316,800——
2020-09-25$107.54$125.89371,700——
2020-09-24$108.06$126.49217,200——
2020-09-23$107.61$125.97353,000——
2020-09-22$108.18$126.63199,500——
2020-09-21$108.32$126.80263,600——
2020-09-18$107.33$125.64620,900——
2020-09-17$107.84$126.24333,300——
2020-09-16$106.05$124.14510,800——
2020-09-15$106.25$124.38338,200——
2020-09-14$104.41$122.22412,500——
2020-09-11$103.30$120.92501,100——
2020-09-10$104.63$122.48360,500——
2020-09-09$107.63$125.99383,200——
2020-09-08$107.07$125.34736,700——
2020-09-04$114.17$133.65278,300——
2020-09-03$116.57$136.46370,200——
2020-09-02$123.75$144.86427,200——
2020-09-01$120.21$140.72301,200——
2020-08-31$119.53$139.92274,000——
2020-08-28$121.78$142.55267,400——
2020-08-27$118.59$138.82400,400——
2020-08-26$121.43$142.14210,600——
2020-08-25$122.28$143.14255,700——
2020-08-24$121.35$142.05178,600——
2020-08-21$121.18$141.85398,100——
2020-08-20$121.06$141.48309,100——
2020-08-19$125.92$147.16282,400——
2020-08-18$126.77$148.15346,100——
2020-08-17$127.66$149.19309,900——
2020-08-14$124.40$145.38179,600——
2020-08-13$125.81$147.03233,200——
2020-08-12$126.48$147.81384,400——
2020-08-11$120.95$141.35277,400——
2020-08-10$122.02$142.60373,600——
2020-08-07$123.11$143.87423,900——
2020-08-06$125.76$146.97281,500——
2020-08-05$128.38$150.03353,100——
2020-08-04$128.48$150.15328,800——
2020-08-03$128.44$150.10296,200——
2020-07-31$127.44$148.93408,600——
2020-07-30$126.56$147.91659,600——
2020-07-29$124.91$145.98453,600——
2020-07-28$121.65$142.17269,800——
2020-07-27$124.31$145.28433,900——
2020-07-24$119.70$139.89235,300——
2020-07-23$123.68$144.54473,900——
2020-07-22$122.42$143.07232,300——
2020-07-21$119.92$140.15518,800——
2020-07-20$120.18$140.45463,700——
2020-07-17$118.06$137.97306,300——
2020-07-16$115.96$135.52331,200——
2020-07-15$116.05$135.62522,000——
2020-07-14$113.56$132.71418,300——
2020-07-13$110.71$129.38259,800——
2020-07-10$112.49$131.46279,400——
2020-07-09$114.40$133.69349,300——
2020-07-08$114.12$133.37278,900——
2020-07-07$112.37$131.32366,700——
2020-07-06$116.10$135.68416,800——
2020-07-02$113.79$132.98310,200——
2020-07-01$111.26$130.02352,700——
2020-06-30$113.24$132.34559,600——
2020-06-29$110.28$128.88385,500——
2020-06-26$108.59$126.901,428,000——
2020-06-25$114.01$133.24390,600——
2020-06-24$112.83$131.86715,700——
2020-06-23$113.96$133.18463,700——
2020-06-22$111.85$130.71287,300——
2020-06-19$110.93$129.64837,500——
2020-06-18$108.99$127.37631,300——
2020-06-17$109.75$128.26282,000——
2020-06-16$108.00$126.21483,000——
2020-06-15$105.79$123.63346,400——
2020-06-12$104.00$121.54318,600——
2020-06-11$102.54$119.83425,700——
2020-06-10$112.66$131.66259,100——
2020-06-09$113.00$132.06329,000——
2020-06-08$114.61$133.94272,400——
2020-06-05$114.05$133.29372,800——
2020-06-04$113.10$132.18705,400——
2020-06-03$109.20$127.62418,000——
2020-06-02$104.71$122.37323,600——
2020-06-01$104.19$121.76367,700——
2020-05-29$105.63$123.45298,900——
2020-05-28$103.24$120.65352,500——
2020-05-27$106.16$124.06206,300——
2020-05-26$104.29$121.88277,000——
2020-05-22$99.54$116.33150,900——
2020-05-21$99.79$116.62252,300——
2020-05-20$102.33$119.35269,600——
2020-05-19$98.69$115.11265,400——
2020-05-18$97.34$113.53336,400——
2020-05-15$92.47$107.85310,300——
2020-05-14$97.07$113.22342,200——
2020-05-13$94.26$109.94484,300——
2020-05-12$97.00$113.14236,100——
2020-05-11$100.57$117.30324,200——
2020-05-08$101.70$118.62263,200——
2020-05-07$96.49$112.54229,900——
2020-05-06$95.39$111.26231,300——
2020-05-05$95.17$111.00391,700——
2020-05-04$91.69$106.94273,500——
2020-05-01$91.98$107.28620,900——
2020-04-30$100.23$116.91530,800——
2020-04-29$107.95$125.911,149,600——
2020-04-28$97.75$114.01500,200——
2020-04-27$96.08$112.07202,500——
2020-04-24$92.36$107.73172,500——
2020-04-23$91.28$106.47306,700——
2020-04-22$91.11$106.27353,700——
2020-04-21$85.20$99.38350,400——
2020-04-20$90.94$106.07408,500——
2020-04-17$92.74$108.17390,500——
2020-04-16$90.65$105.73507,900——
2020-04-15$85.40$99.61293,300——
2020-04-14$90.23$105.24263,000——
2020-04-13$86.75$101.18326,800——
2020-04-09$86.52$100.91492,300——
2020-04-08$89.86$104.81361,200——
2020-04-07$86.21$100.55434,400——
2020-04-06$85.30$99.49325,400——
2020-04-03$74.98$87.45402,000——
2020-04-02$77.80$90.74368,100——
2020-04-01$77.16$90.00294,100——
2020-03-31$81.45$95.00465,300——
2020-03-30$82.94$96.74294,600——
2020-03-27$79.97$93.27421,100——
2020-03-26$86.46$100.84507,800——
2020-03-25$81.81$95.42429,900——
2020-03-24$83.76$97.70573,800——
2020-03-23$73.41$85.62580,200——
2020-03-20$74.75$87.19781,100——
2020-03-19$72.07$84.06576,800——
2020-03-18$72.10$84.10744,300——
2020-03-17$82.46$96.18796,200——
2020-03-16$70.88$82.67676,800——
2020-03-13$91.01$106.15535,900——
2020-03-12$81.69$95.28730,300——
2020-03-11$89.69$104.61443,000——
2020-03-10$96.70$112.79486,000——
2020-03-09$91.03$106.17519,900——
2020-03-06$100.84$117.62516,200——
2020-03-05$99.41$115.95297,700——
2020-03-04$102.53$119.59338,800——
2020-03-03$96.45$112.50583,800——
2020-03-02$100.78$117.55652,100——
2020-02-28$100.19$116.86636,000——
2020-02-27$97.89$114.18427,400——
2020-02-26$102.87$119.98328,100——
2020-02-25$101.79$118.73467,400——
2020-02-24$104.89$122.34380,500——
2020-02-21$112.01$130.65361,600——
2020-02-20$115.90$134.95324,900——
2020-02-19$117.13$136.38299,500——
2020-02-18$113.87$132.59491,500——
2020-02-14$118.01$137.41328,000——
2020-02-13$120.84$140.70796,100——
2020-02-12$117.55$136.87330,000——
2020-02-11$116.40$135.53320,000——
2020-02-10$112.90$131.46206,300——
2020-02-07$110.31$128.44288,700——
2020-02-06$113.72$132.41475,100——
2020-02-05$115.49$134.47391,600——
2020-02-04$113.77$132.47435,500——
2020-02-03$109.43$127.42570,900——
2020-01-31$104.82$122.05571,900——
2020-01-30$109.21$127.16882,300——
2020-01-29$110.21$128.321,268,900——
2020-01-28$113.43$132.07871,400——
2020-01-27$108.63$126.48543,500——
2020-01-24$112.91$131.47448,700——
2020-01-23$116.81$136.01601,100——
2020-01-22$117.61$136.94432,600——
2020-01-21$116.53$135.68385,500——
2020-01-17$114.78$133.65329,400——
2020-01-16$115.50$134.48440,800——
2020-01-15$113.09$131.68569,700——
2020-01-14$113.89$132.61648,900——
2020-01-13$109.67$127.70243,900——
2020-01-10$107.66$125.36270,100——
2020-01-09$110.10$128.20424,000——
2020-01-08$108.16$125.94325,700——
2020-01-07$108.70$126.57500,000——
2020-01-06$105.91$123.32647,100——
2020-01-03$107.76$125.47790,100——
2020-01-02$111.83$130.21350,300——