MKS Inc (MKSI) stock
MKSINasdaqIndustrial Instruments For Measurement, Display, and ControlFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Aug 6, 2026Score 14/307% below fair value
$202.04−14.13 (-6.54%)
Close on Oct 30, 2026Market cap $13.66BP/E 32.3Yield 0.44%
Price history
MKS share prices for every trading day, newest first. Adjusted for stock splits, not for dividends.
Close, Oct 30, 2026
$202.04
-6.54% on the day
52-week range
$134.74 – $447.62
-54.9% from the high
Change over 52 weeks
+45.0%
From $139.31 on Oct 30, 2025
Average volume
1.40M
Shares a day, last 90 sessions
| Date | Open | High | Low | Close | Change | Volume |
|---|---|---|---|---|---|---|
| Oct 30, 2026 | $200.99 | $206.85 | $196.20 | $202.04 | -6.54% | 1,384,854 |
| Oct 29, 2026 | $216.67 | $222.30 | $214.50 | $216.17 | -0.95% | 769,994 |
| Oct 28, 2026 | $218.68 | $220.41 | $214.35 | $218.24 | +2.87% | 972,914 |
| Oct 27, 2026 | $206.78 | $212.71 | $204.09 | $212.16 | +4.88% | 1,010,880 |
| Oct 26, 2026 | $198.75 | $205.33 | $197.03 | $202.28 | +2.92% | 1,051,788 |
| Oct 23, 2026 | $193.99 | $200.19 | $192.01 | $196.55 | +0.22% | 1,146,075 |
| Oct 22, 2026 | $204.01 | $205.18 | $193.21 | $196.11 | -9.25% | 2,561,438 |
| Oct 21, 2026 | $220.69 | $220.69 | $213.19 | $216.10 | +2.35% | 1,354,080 |
| Oct 20, 2026 | $210.57 | $216.82 | $205.62 | $211.14 | -1.98% | 1,159,537 |
| Oct 19, 2026 | $221.51 | $223.49 | $215.09 | $215.41 | +0.27% | 1,349,230 |
| Oct 16, 2026 | $224.40 | $225.79 | $213.95 | $214.83 | -5.99% | 1,601,471 |
| Oct 15, 2026 | $224.32 | $230.57 | $212.35 | $228.52 | -2.55% | 2,565,727 |
| Oct 14, 2026 | $241.02 | $244.54 | $232.20 | $234.50 | -5.28% | 1,684,150 |
| Oct 13, 2026 | $242.35 | $249.52 | $238.14 | $247.56 | -0.94% | 1,685,115 |
| Oct 12, 2026 | $261.18 | $261.18 | $249.81 | $249.91 | -5.52% | 1,365,006 |
| Oct 9, 2026 | $266.09 | $267.96 | $256.65 | $264.50 | +1.58% | 636,479 |
| Oct 8, 2026 | $266.69 | $274.07 | $257.60 | $260.38 | -4.68% | 1,275,372 |
| Oct 7, 2026 | $271.72 | $274.99 | $269.11 | $273.15 | -2.94% | 1,014,275 |
| Oct 6, 2026 | $285.40 | $286.38 | $276.56 | $281.41 | +0.32% | 1,055,883 |
| Oct 5, 2026 | $279.79 | $284.21 | $273.60 | $280.50 | +0.48% | 1,125,351 |
| Oct 2, 2026 | $284.10 | $284.63 | $278.91 | $279.15 | +2.92% | 1,349,405 |
| Oct 1, 2026 | $265.57 | $275.48 | $262.77 | $271.24 | +2.22% | 1,336,907 |
| Sep 30, 2026 | $267.82 | $268.00 | $260.23 | $265.36 | -0.25% | 751,302 |
| Sep 29, 2026 | $264.18 | $266.28 | $261.36 | $266.02 | +2.96% | 807,535 |
| Sep 28, 2026 | $259.56 | $259.69 | $251.19 | $258.38 | -0.94% | 1,095,215 |
| Sep 25, 2026 | $261.01 | $262.66 | $257.90 | $260.82 | +1.10% | 683,394 |
| Sep 24, 2026 | $256.64 | $259.82 | $254.21 | $257.98 | -1.80% | 695,452 |
| Sep 23, 2026 | $260.37 | $263.78 | $253.41 | $262.72 | +0.90% | 1,534,322 |
| Sep 22, 2026 | $253.50 | $260.66 | $252.60 | $260.37 | +1.34% | 2,709,586 |
| Sep 21, 2026 | $258.20 | $259.00 | $251.79 | $256.92 | +1.92% | 948,161 |
| Sep 18, 2026 | $244.03 | $252.38 | $243.00 | $252.08 | +4.93% | 2,231,364 |
| Sep 17, 2026 | $245.50 | $250.84 | $238.45 | $240.23 | +2.10% | 1,026,777 |
| Sep 16, 2026 | $237.80 | $240.48 | $232.03 | $235.28 | +1.63% | 960,065 |
| Sep 15, 2026 | $242.60 | $242.60 | $228.46 | $231.50 | -3.25% | 1,632,355 |
| Sep 14, 2026 | $248.32 | $250.49 | $238.29 | $239.27 | -10.49% | 1,175,742 |
| Sep 11, 2026 | $267.86 | $270.29 | $264.74 | $267.31 | +2.09% | 1,247,889 |
| Sep 10, 2026 | $260.83 | $265.60 | $258.79 | $261.84 | -2.32% | 961,346 |
| Sep 9, 2026 | $262.34 | $269.78 | $262.34 | $268.05 | +0.96% | 1,201,869 |
| Sep 8, 2026 | $264.06 | $270.17 | $260.35 | $265.50 | +1.99% | 1,752,638 |
| Sep 4, 2026 | $255.14 | $260.94 | $253.97 | $260.31 | +4.27% | 1,689,425 |
| Sep 3, 2026 | $247.10 | $250.78 | $241.51 | $249.65 | -0.69% | 1,137,004 |
| Sep 2, 2026 | $247.30 | $252.98 | $245.90 | $251.38 | +2.00% | 1,089,962 |
| Sep 1, 2026 | $250.96 | $252.09 | $243.72 | $246.44 | -3.82% | 1,644,232 |
| Aug 31, 2026 | $258.38 | $259.38 | $254.48 | $256.24 | +0.19% | 977,647 |
| Aug 28, 2026 | $268.08 | $269.36 | $255.14 | $255.76 | -5.62% | 1,407,551 |
| Aug 27, 2026 | $279.03 | $282.56 | $268.44 | $270.99 | -0.28% | 792,101 |
| Aug 26, 2026 | $270.12 | $275.17 | $266.52 | $271.75 | +0.47% | 1,703,554 |
| Aug 25, 2026 | $274.93 | $274.93 | $266.25 | $270.48 | +0.53% | 1,157,627 |
| Aug 24, 2026 | $271.50 | $274.00 | $264.54 | $269.06 | -3.60% | 1,884,336 |
| Aug 21, 2026 | $282.60 | $285.47 | $274.88 | $279.11 | -0.98% | 928,026 |
| Aug 20, 2026 | $280.91 | $284.54 | $274.31 | $281.88 | +0.10% | 1,113,251 |
| Aug 19, 2026 | $304.16 | $304.16 | $278.23 | $281.60 | -6.21% | 1,535,867 |
| Aug 18, 2026 | $303.87 | $309.14 | $294.68 | $300.24 | -6.39% | 1,426,296 |
| Aug 17, 2026 | $315.42 | $325.24 | $313.11 | $320.74 | +3.22% | 1,172,574 |
| Aug 14, 2026 | $302.01 | $312.08 | $302.01 | $310.73 | +1.45% | 1,178,613 |
| Aug 13, 2026 | $306.99 | $316.39 | $305.56 | $306.29 | -0.18% | 946,846 |
| Aug 12, 2026 | $312.90 | $317.00 | $305.55 | $306.83 | +4.23% | 1,210,822 |
| Aug 11, 2026 | $299.03 | $300.72 | $290.76 | $294.38 | +0.69% | 698,759 |
| Aug 10, 2026 | $304.92 | $309.84 | $292.09 | $292.35 | -4.14% | 1,068,534 |
| Aug 7, 2026 | $301.18 | $310.43 | $298.00 | $304.99 | +4.70% | 1,269,658 |
| Aug 6, 2026 | $291.02 | $309.67 | $285.58 | $291.31 | -6.96% | 2,840,272 |
| Aug 5, 2026 | $319.23 | $329.35 | $311.86 | $313.10 | -2.39% | 2,366,180 |
| Aug 4, 2026 | $327.27 | $329.34 | $320.45 | $320.76 | +3.48% | 2,892,303 |
| Aug 3, 2026 | $288.31 | $313.46 | $288.31 | $309.98 | +4.21% | 1,404,670 |
| Jul 31, 2026 | $310.00 | $314.69 | $294.15 | $297.45 | +1.41% | 1,143,074 |
| Jul 30, 2026 | $288.80 | $297.57 | $284.78 | $293.30 | +13.85% | 3,027,600 |
| Jul 29, 2026 | $280.97 | $290.51 | $256.16 | $257.61 | -9.71% | 2,510,384 |
| Jul 28, 2026 | $296.31 | $296.91 | $277.01 | $285.31 | -9.63% | 1,990,201 |
| Jul 27, 2026 | $330.15 | $334.00 | $298.38 | $315.70 | -4.10% | 1,391,385 |
| Jul 24, 2026 | $341.09 | $345.13 | $326.08 | $329.18 | -4.67% | 849,716 |
| Jul 23, 2026 | $338.49 | $348.43 | $336.74 | $345.30 | +0.13% | 752,096 |
| Jul 22, 2026 | $330.74 | $349.02 | $328.43 | $344.84 | -0.17% | 801,307 |
| Jul 21, 2026 | $347.28 | $347.45 | $333.72 | $345.44 | +6.53% | 1,106,515 |
| Jul 20, 2026 | $330.88 | $338.98 | $322.75 | $324.28 | -0.13% | 812,897 |
| Jul 17, 2026 | $315.02 | $330.61 | $307.10 | $324.69 | -2.20% | 1,893,433 |
| Jul 16, 2026 | $336.12 | $349.07 | $327.38 | $332.00 | -6.16% | 1,112,182 |
| Jul 15, 2026 | $366.49 | $374.12 | $336.76 | $353.80 | -1.29% | 1,403,157 |
| Jul 14, 2026 | $373.21 | $373.21 | $353.20 | $358.43 | +1.82% | 828,599 |
| Jul 13, 2026 | $352.51 | $358.48 | $346.07 | $352.03 | -4.49% | 851,882 |
| Jul 10, 2026 | $357.94 | $371.44 | $355.00 | $368.58 | -0.05% | 862,769 |
| Jul 9, 2026 | $370.14 | $380.50 | $366.27 | $368.78 | +5.55% | 1,257,065 |
| Jul 8, 2026 | $341.50 | $358.21 | $341.50 | $349.39 | -0.05% | 1,228,277 |
| Jul 7, 2026 | $342.86 | $353.00 | $329.01 | $349.57 | -5.02% | 1,886,573 |
| Jul 6, 2026 | $375.84 | $385.58 | $364.67 | $368.06 | +0.68% | 1,277,801 |
| Jul 2, 2026 | $408.00 | $408.92 | $355.08 | $365.56 | -11.07% | 2,168,108 |
| Jul 1, 2026 | $424.61 | $428.97 | $406.68 | $411.05 | -7.59% | 1,536,042 |
| Jun 30, 2026 | $425.78 | $447.62 | $418.48 | $444.80 | +6.92% | 2,230,535 |
| Jun 29, 2026 | $393.18 | $419.95 | $384.74 | $416.00 | +7.05% | 2,105,903 |
| Jun 26, 2026 | $394.14 | $401.05 | $385.00 | $388.61 | -5.29% | 2,025,794 |
| Jun 25, 2026 | $408.00 | $414.64 | $383.38 | $410.31 | +7.52% | 2,437,821 |
| Jun 24, 2026 | $390.54 | $395.75 | $376.83 | $381.62 | -1.94% | 1,804,663 |
| Jun 23, 2026 | $388.69 | $394.47 | $382.56 | $389.17 | -7.46% | 1,641,092 |
| Jun 22, 2026 | $413.50 | $421.58 | $407.00 | $420.56 | +3.49% | 1,547,005 |
| Jun 18, 2026 | $386.56 | $408.87 | $382.00 | $406.37 | +9.46% | 2,127,039 |
| Jun 17, 2026 | $383.99 | $386.01 | $369.85 | $371.26 | +1.35% | 1,196,916 |
| Jun 16, 2026 | $375.00 | $379.99 | $365.36 | $366.31 | -2.40% | 1,090,149 |
| Jun 15, 2026 | $367.88 | $377.66 | $367.88 | $375.32 | +5.52% | 915,164 |
| Jun 12, 2026 | $345.32 | $359.35 | $341.45 | $355.69 | +3.00% | 961,425 |
| Jun 11, 2026 | $326.74 | $347.27 | $326.10 | $345.32 | +9.25% | 1,005,552 |
| Jun 10, 2026 | $317.42 | $333.69 | $310.36 | $316.07 | -1.52% | 1,270,123 |
| Jun 9, 2026 | $320.44 | $332.01 | $298.00 | $320.96 | +2.84% | 1,205,404 |
| Jun 8, 2026 | $314.99 | $339.92 | $309.03 | $312.09 | +3.46% | 1,099,657 |
| Jun 5, 2026 | $315.23 | $318.88 | $300.11 | $301.65 | -8.65% | 955,719 |
| Jun 4, 2026 | $321.01 | $335.83 | $318.01 | $330.23 | -1.47% | 679,273 |
| Jun 3, 2026 | $339.40 | $341.81 | $326.81 | $335.15 | +1.14% | 716,706 |
| Jun 2, 2026 | $324.36 | $334.49 | $320.38 | $331.36 | +4.33% | 1,125,569 |
| Jun 1, 2026 | $318.02 | $319.31 | $309.46 | $317.62 | -2.05% | 1,037,103 |
| May 29, 2026 | $325.99 | $329.75 | $317.16 | $324.26 | +0.26% | 1,204,480 |
| May 28, 2026 | $327.41 | $330.26 | $316.35 | $323.41 | -1.40% | 1,106,907 |
| May 27, 2026 | $338.58 | $339.00 | $321.45 | $328.01 | -1.83% | 911,291 |
| May 26, 2026 | $330.50 | $334.80 | $326.45 | $334.11 | +4.21% | 861,070 |
| May 22, 2026 | $315.48 | $322.00 | $311.75 | $320.62 | +2.38% | 835,816 |
| May 21, 2026 | $311.51 | $314.04 | $307.18 | $313.16 | +0.53% | 1,361,932 |
| May 20, 2026 | $302.00 | $312.74 | $300.09 | $311.51 | +5.94% | 1,129,951 |
| May 19, 2026 | $289.56 | $294.27 | $280.83 | $294.04 | -0.56% | 1,495,004 |
| May 18, 2026 | $314.51 | $315.12 | $290.00 | $295.70 | -2.46% | 1,486,353 |
| May 15, 2026 | $301.43 | $304.71 | $295.08 | $303.17 | -3.39% | 1,214,573 |
| May 14, 2026 | $317.31 | $317.43 | $308.51 | $313.81 | -1.10% | 984,259 |
| May 13, 2026 | $318.99 | $321.52 | $311.66 | $317.31 | +1.79% | 923,780 |
| May 12, 2026 | $312.78 | $313.38 | $298.16 | $311.72 | -2.50% | 1,480,108 |
| May 11, 2026 | $313.47 | $321.65 | $313.47 | $319.71 | +2.08% | 1,227,047 |
| May 8, 2026 | $318.70 | $324.42 | $308.83 | $313.21 | +4.13% | 1,736,811 |
| May 7, 2026 | $316.17 | $326.84 | $295.77 | $300.79 | +2.39% | 2,327,555 |
| May 6, 2026 | $294.92 | $294.92 | $280.50 | $293.77 | +2.13% | 2,303,432 |
| May 5, 2026 | $297.02 | $298.00 | $280.18 | $287.65 | -1.33% | 1,537,423 |
| May 4, 2026 | $277.72 | $292.12 | $277.55 | $291.53 | +4.35% | 1,908,899 |
| May 1, 2026 | $282.98 | $285.67 | $275.04 | $279.38 | -1.54% | 1,300,898 |
| Apr 30, 2026 | $270.18 | $284.14 | $263.73 | $283.75 | +6.90% | 1,632,571 |
| Apr 29, 2026 | $273.88 | $278.91 | $261.23 | $265.44 | -0.92% | 796,663 |
| Apr 28, 2026 | $268.88 | $277.00 | $264.45 | $267.90 | -3.76% | 1,078,299 |
| Apr 27, 2026 | $282.57 | $283.61 | $267.94 | $278.36 | -0.93% | 817,585 |
| Apr 24, 2026 | $290.00 | $294.05 | $279.38 | $280.98 | +0.15% | 845,450 |
| Apr 23, 2026 | $280.28 | $287.00 | $272.97 | $280.56 | +0.76% | 1,208,149 |
| Apr 22, 2026 | $280.97 | $282.62 | $266.85 | $278.45 | +1.71% | 1,704,302 |
| Apr 21, 2026 | $283.57 | $289.49 | $271.19 | $273.77 | -2.20% | 957,319 |
| Apr 20, 2026 | $279.01 | $285.82 | $278.00 | $279.93 | +0.48% | 946,469 |
| Apr 17, 2026 | $277.17 | $281.77 | $275.00 | $278.59 | +3.22% | 947,849 |
| Apr 16, 2026 | $267.92 | $272.51 | $263.00 | $269.89 | +0.33% | 1,372,385 |
| Apr 15, 2026 | $269.57 | $272.92 | $261.89 | $269.00 | -1.88% | 784,452 |
| Apr 14, 2026 | $275.97 | $277.94 | $269.95 | $274.15 | +0.36% | 1,001,709 |
| Apr 13, 2026 | $266.65 | $273.55 | $265.28 | $273.18 | +1.64% | 561,128 |
| Apr 10, 2026 | $268.26 | $272.71 | $266.00 | $268.77 | +2.10% | 789,057 |
| Apr 9, 2026 | $255.22 | $267.07 | $255.22 | $263.25 | +2.83% | 1,058,552 |
| Apr 8, 2026 | $256.99 | $260.99 | $250.00 | $256.01 | +7.49% | 1,569,977 |
| Apr 7, 2026 | $233.96 | $241.90 | $232.92 | $238.17 | +0.50% | 811,283 |
| Apr 6, 2026 | $236.11 | $240.82 | $233.12 | $236.98 | +0.99% | 523,478 |
| Apr 2, 2026 | $222.42 | $241.11 | $222.42 | $234.66 | -0.55% | 885,252 |
| Apr 1, 2026 | $234.57 | $240.00 | $233.10 | $235.96 | +2.68% | 1,014,749 |
| Mar 31, 2026 | $217.46 | $231.16 | $215.00 | $229.81 | +9.19% | 1,235,770 |
| Mar 30, 2026 | $227.97 | $227.97 | $208.47 | $210.47 | -5.69% | 1,250,461 |
| Mar 27, 2026 | $222.08 | $228.57 | $221.16 | $223.18 | -0.86% | 722,008 |
| Mar 26, 2026 | $237.00 | $239.21 | $224.04 | $225.12 | -7.62% | 1,111,341 |
| Mar 25, 2026 | $244.64 | $245.70 | $236.00 | $243.68 | +0.05% | 741,518 |
| Mar 24, 2026 | $231.49 | $247.90 | $229.08 | $243.56 | +3.63% | 895,859 |
| Mar 23, 2026 | $234.87 | $243.50 | $232.61 | $235.02 | +3.47% | 823,463 |
| Mar 20, 2026 | $235.70 | $237.95 | $222.10 | $227.13 | -4.10% | 1,882,830 |
| Mar 19, 2026 | $224.32 | $239.36 | $220.14 | $236.85 | +1.48% | 1,495,374 |
| Mar 18, 2026 | $231.21 | $235.25 | $228.23 | $233.39 | +1.97% | 1,280,010 |
| Mar 17, 2026 | $223.20 | $230.62 | $220.74 | $228.89 | +3.12% | 1,053,063 |
| Mar 16, 2026 | $218.99 | $227.46 | $217.92 | $221.96 | +3.99% | 1,522,763 |
| Mar 13, 2026 | $216.69 | $224.72 | $212.08 | $213.45 | -0.02% | 757,418 |
| Mar 12, 2026 | $218.93 | $220.71 | $211.09 | $213.49 | -4.81% | 1,527,149 |
| Mar 11, 2026 | $222.97 | $230.98 | $221.50 | $224.27 | -0.45% | 1,051,229 |
| Mar 10, 2026 | $220.33 | $233.42 | $220.09 | $225.28 | +3.17% | 1,221,718 |
| Mar 9, 2026 | $203.88 | $220.54 | $200.50 | $218.36 | +3.98% | 2,051,404 |
| Mar 6, 2026 | $220.33 | $224.29 | $208.95 | $210.00 | -8.87% | 1,783,188 |
| Mar 5, 2026 | $230.03 | $238.35 | $223.19 | $230.45 | -2.03% | 1,333,086 |
| Mar 4, 2026 | $237.16 | $239.98 | $231.62 | $235.23 | +1.15% | 1,137,856 |
| Mar 3, 2026 | $235.64 | $239.26 | $228.56 | $232.56 | -4.79% | 1,407,639 |
| Mar 2, 2026 | $239.44 | $246.98 | $238.00 | $244.26 | -0.08% | 1,069,596 |
| Feb 27, 2026 | $239.00 | $245.00 | $237.91 | $244.46 | -0.09% | 1,862,043 |
| Feb 26, 2026 | $255.01 | $256.77 | $238.88 | $244.68 | -4.39% | 2,139,711 |
| Feb 25, 2026 | $256.68 | $258.86 | $252.33 | $255.91 | +1.79% | 1,097,665 |
| Feb 24, 2026 | $255.00 | $258.00 | $249.06 | $251.41 | -0.91% | 1,359,576 |
| Feb 23, 2026 | $258.98 | $260.68 | $248.62 | $253.71 | -2.14% | 895,720 |
| Feb 20, 2026 | $247.55 | $263.36 | $247.00 | $259.27 | +4.09% | 1,950,303 |
| Feb 19, 2026 | $251.86 | $254.76 | $245.15 | $249.08 | -0.51% | 1,447,620 |
| Feb 18, 2026 | $243.38 | $261.00 | $242.20 | $250.36 | -4.78% | 3,024,164 |
| Feb 17, 2026 | $257.68 | $269.91 | $253.20 | $262.94 | +0.84% | 3,505,418 |
| Feb 13, 2026 | $249.26 | $263.90 | $248.56 | $260.74 | +4.54% | 1,663,240 |
| Feb 12, 2026 | $261.01 | $264.45 | $247.50 | $249.42 | -3.72% | 1,343,029 |
| Feb 11, 2026 | $257.90 | $266.08 | $252.39 | $259.05 | +2.59% | 2,237,726 |
| Feb 10, 2026 | $258.35 | $259.70 | $246.10 | $252.52 | +0.77% | 1,641,155 |
| Feb 9, 2026 | $241.71 | $251.99 | $239.36 | $250.60 | +3.14% | 1,336,270 |
| Feb 6, 2026 | $231.91 | $244.06 | $231.34 | $242.96 | +7.11% | 1,510,410 |
| Feb 5, 2026 | $216.77 | $230.36 | $213.49 | $226.83 | +3.10% | 1,785,186 |
| Feb 4, 2026 | $232.26 | $237.93 | $212.91 | $220.00 | -4.17% | 2,359,265 |
| Feb 3, 2026 | $239.76 | $241.18 | $225.82 | $229.58 | -1.71% | 1,941,857 |
| Feb 2, 2026 | $231.71 | $242.18 | $228.00 | $233.57 | -0.78% | 3,561,832 |
| Jan 30, 2026 | $238.95 | $245.96 | $233.09 | $235.41 | -3.47% | 1,518,398 |
| Jan 29, 2026 | $238.64 | $246.35 | $235.86 | $243.88 | +3.32% | 2,639,034 |
| Jan 28, 2026 | $233.62 | $239.39 | $231.34 | $236.05 | +2.81% | 2,885,329 |
| Jan 27, 2026 | $221.16 | $232.81 | $220.50 | $229.60 | +4.98% | 2,247,165 |
| Jan 26, 2026 | $217.73 | $220.49 | $215.17 | $218.70 | +0.76% | 1,048,877 |
| Jan 23, 2026 | $223.00 | $223.00 | $214.08 | $217.06 | -2.66% | 1,317,822 |
| Jan 22, 2026 | $230.33 | $233.11 | $216.31 | $223.00 | +1.03% | 1,885,228 |
| Jan 21, 2026 | $215.96 | $221.07 | $210.91 | $220.73 | +4.78% | 1,957,896 |
| Jan 20, 2026 | $200.44 | $212.59 | $200.00 | $210.66 | +3.27% | 1,799,516 |
| Jan 16, 2026 | $209.37 | $210.42 | $200.14 | $203.99 | -0.62% | 1,611,991 |
| Jan 15, 2026 | $205.00 | $211.08 | $202.32 | $205.26 | +7.86% | 2,046,466 |
| Jan 14, 2026 | $190.86 | $192.82 | $186.58 | $190.30 | -1.54% | 845,013 |
| Jan 13, 2026 | $187.85 | $193.39 | $185.00 | $193.28 | +3.96% | 1,134,467 |
| Jan 12, 2026 | $183.40 | $188.71 | $183.40 | $185.92 | -0.09% | 610,021 |
| Jan 9, 2026 | $180.68 | $186.71 | $180.52 | $186.08 | +3.97% | 640,453 |
| Jan 8, 2026 | $181.00 | $181.00 | $174.09 | $178.98 | -2.31% | 532,084 |
| Jan 7, 2026 | $180.31 | $183.33 | $179.57 | $183.22 | -0.15% | 646,769 |
| Jan 6, 2026 | $177.34 | $185.09 | $177.34 | $183.50 | +4.15% | 1,045,977 |
| Jan 5, 2026 | $172.05 | $176.37 | $170.76 | $176.19 | +4.65% | 1,062,541 |
| Jan 2, 2026 | $164.54 | $169.54 | $164.54 | $168.36 | +5.36% | 881,590 |
| Dec 31, 2025 | $162.11 | $162.43 | $159.56 | $159.80 | -1.25% | 536,136 |
| Dec 30, 2025 | $163.15 | $163.84 | $161.60 | $161.82 | -0.61% | 417,294 |
| Dec 29, 2025 | $162.04 | $163.70 | $160.74 | $162.81 | -0.84% | 332,856 |
| Dec 26, 2025 | $164.45 | $164.87 | $162.68 | $164.19 | +0.48% | 285,211 |
| Dec 24, 2025 | $163.06 | $164.40 | $161.13 | $163.40 | +0.29% | 197,067 |
| Dec 23, 2025 | $160.30 | $164.03 | $160.00 | $162.92 | +0.57% | 850,574 |
| Dec 22, 2025 | $162.49 | $163.50 | $160.02 | $161.99 | +1.52% | 697,586 |
| Dec 19, 2025 | $157.61 | $161.08 | $157.61 | $159.56 | +1.62% | 1,210,448 |
| Dec 18, 2025 | $155.36 | $158.28 | $153.55 | $157.01 | +5.59% | 1,291,173 |
| Dec 17, 2025 | $157.67 | $158.25 | $146.90 | $148.70 | -4.83% | 1,313,531 |
| Dec 16, 2025 | $159.62 | $160.78 | $154.19 | $156.25 | -1.92% | 859,828 |
| Dec 15, 2025 | $159.26 | $160.55 | $156.93 | $159.31 | +2.27% | 1,005,642 |
| Dec 12, 2025 | $164.37 | $165.89 | $153.12 | $155.77 | -6.61% | 1,442,018 |
| Dec 11, 2025 | $166.49 | $168.49 | $163.00 | $166.80 | -0.64% | 716,838 |
| Dec 10, 2025 | $165.05 | $170.37 | $164.83 | $167.88 | +1.63% | 929,236 |
| Dec 9, 2025 | $164.15 | $166.95 | $162.65 | $165.19 | +0.48% | 947,039 |
| Dec 8, 2025 | $164.82 | $167.27 | $162.78 | $164.40 | +0.90% | 669,008 |
| Dec 5, 2025 | $165.00 | $165.95 | $162.15 | $162.94 | -0.25% | 809,059 |
| Dec 4, 2025 | $161.44 | $164.06 | $160.56 | $163.35 | -0.03% | 843,636 |
| Dec 3, 2025 | $161.25 | $164.79 | $158.88 | $163.40 | +1.51% | 877,775 |
| Dec 2, 2025 | $158.81 | $162.85 | $156.86 | $160.97 | +3.23% | 1,005,876 |
| Dec 1, 2025 | $155.96 | $158.70 | $154.00 | $155.94 | -0.29% | 1,000,977 |
| Nov 28, 2025 | $153.11 | $156.49 | $152.00 | $156.39 | +2.87% | 304,194 |
| Nov 26, 2025 | $150.76 | $154.36 | $148.64 | $152.02 | +2.03% | 523,767 |
| Nov 25, 2025 | $149.12 | $150.39 | $145.03 | $149.00 | -0.63% | 874,479 |
| Nov 24, 2025 | $144.00 | $150.76 | $144.00 | $149.95 | +4.13% | 715,366 |
| Nov 21, 2025 | $138.24 | $144.45 | $134.74 | $144.00 | +3.98% | 823,197 |
| Nov 20, 2025 | $149.47 | $149.47 | $137.95 | $138.49 | -3.73% | 1,185,066 |
| Nov 19, 2025 | $142.22 | $147.29 | $141.00 | $143.86 | +2.48% | 902,870 |
| Nov 18, 2025 | $139.29 | $144.62 | $137.03 | $140.38 | -0.94% | 821,806 |
| Nov 17, 2025 | $141.16 | $145.17 | $138.74 | $141.71 | -0.72% | 845,373 |
| Nov 14, 2025 | $138.76 | $146.21 | $138.36 | $142.74 | -0.95% | 830,440 |
| Nov 13, 2025 | $151.84 | $152.50 | $140.99 | $144.11 | -5.91% | 1,244,843 |
| Nov 12, 2025 | $156.00 | $157.04 | $151.47 | $153.17 | +0.35% | 842,575 |
| Nov 11, 2025 | $158.03 | $158.03 | $152.00 | $152.63 | -3.95% | 855,960 |
| Nov 10, 2025 | $158.50 | $160.18 | $154.74 | $158.90 | +2.65% | 1,248,695 |
| Nov 7, 2025 | $152.80 | $155.79 | $145.27 | $154.80 | -0.29% | 1,522,321 |
| Nov 6, 2025 | $147.23 | $157.23 | $146.53 | $155.25 | +10.96% | 2,012,042 |
| Nov 5, 2025 | $139.56 | $144.31 | $138.17 | $139.92 | +1.98% | 1,621,643 |
| Nov 4, 2025 | $139.73 | $142.11 | $136.95 | $137.20 | -5.69% | 1,165,671 |
| Nov 3, 2025 | $143.93 | $146.81 | $142.20 | $145.47 | +1.22% | 951,758 |
| Oct 31, 2025 | $141.00 | $144.80 | $140.00 | $143.71 | +3.16% | 994,606 |
| Oct 30, 2025 | $141.39 | $142.73 | $138.55 | $139.31 | -1.48% | 917,466 |
| Oct 29, 2025 | $144.00 | $146.00 | $139.86 | $141.40 | +0.65% | 1,658,601 |
| Oct 28, 2025 | $143.54 | $143.66 | $140.26 | $140.48 | -3.12% | 769,285 |
| Oct 27, 2025 | $146.16 | $147.31 | $144.95 | $145.01 | +1.45% | 846,342 |
| Oct 24, 2025 | $143.00 | $146.84 | $142.00 | $142.94 | +1.63% | 923,756 |
| Oct 23, 2025 | $132.40 | $142.34 | $132.28 | $140.65 | +4.63% | 751,229 |
| Oct 22, 2025 | $138.68 | $141.06 | $130.72 | $134.42 | -4.48% | 1,079,953 |
| Oct 21, 2025 | $140.49 | $141.80 | $139.52 | $140.73 | -0.60% | 628,282 |
| Oct 20, 2025 | $137.87 | $142.33 | $137.87 | $141.58 | – | 511,384 |
Seasonality
MKSI return in each calendar month over the last 10 years, including dividends. The current month runs to the latest close.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average | 11.5% | 0.4% | -0.5% | -0.9% | 6.7% | 3.4% | 0.8% | -5.6% | -0.3% | -1.8% | 8.1% | 3.3% |
| Months up | 8 of 10 | 5 of 10 | 5 of 10 | 3 of 10 | 9 of 10 | 6 of 10 | 5 of 10 | 1 of 10 | 5 of 10 | 3 of 10 | 7 of 9 | 7 of 9 |
| 2026 | 47.3% | 3.9% | -6.0% | 23.5% | 14.3% | 37.3% | -33.1% | -13.8% | 3.6% | -23.9% | ||
| 2025 | 8.5% | -18.8% | -12.7% | -12.5% | 17.5% | 20.9% | -4.2% | 8.8% | 19.8% | 16.1% | 9.0% | 2.2% |
| 2024 | 3.5% | 15.5% | 8.3% | -10.5% | 6.6% | 3.2% | -3.6% | -5.1% | -8.8% | -8.6% | 14.6% | -8.1% |
| 2023 | 20.8% | -5.0% | -8.6% | -5.4% | 16.3% | 11.1% | 1.0% | -8.0% | -13.7% | -24.1% | 26.1% | 24.6% |
| 2022 | -10.8% | -2.9% | -0.4% | -24.0% | 8.6% | -16.9% | 15.2% | -15.6% | -17.0% | -0.6% | 2.4% | 1.0% |
| 2021 | 5.1% | 4.5% | 12.4% | -3.4% | 5.2% | -5.5% | -12.1% | -5.8% | 2.5% | -0.6% | 1.5% | 14.5% |
| 2020 | -4.7% | -4.3% | -18.7% | 23.1% | 5.6% | 7.2% | 12.5% | -6.1% | -8.6% | -0.8% | 27.5% | 9.0% |
| 2019 | 26.3% | 1.8% | 12.3% | -2.2% | -21.3% | 9.0% | 9.3% | -7.8% | 17.9% | 17.3% | -1.6% | 3.5% |
| 2018 | 8.3% | 9.0% | 3.9% | -11.5% | 9.8% | -14.7% | -1.5% | -1.3% | -13.7% | -8.1% | 6.8% | -17.7% |
| 2017 | 10.9% | -0.2% | 4.8% | 13.8% | 4.7% | -17.7% | 24.3% | -1.3% | 14.7% | 15.0% | -13.1% | 0.2% |