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 month, 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
| Month | Open | High | Low | Close | Change | Volume |
|---|---|---|---|---|---|---|
| Oct 2026 | $265.57 | $286.38 | $192.01 | $202.04 | -23.86% | 29,455,931 |
| Sep 2026 | $250.96 | $270.29 | $228.46 | $265.36 | +3.56% | 26,975,635 |
| Aug 2026 | $288.31 | $329.35 | $254.48 | $256.24 | -13.85% | 29,975,487 |
| Jul 2026 | $424.61 | $428.97 | $256.16 | $297.45 | -33.13% | 30,691,063 |
| Jun 2026 | $318.02 | $447.62 | $298.00 | $444.80 | +37.17% | 29,178,612 |
| May 2026 | $282.98 | $339.00 | $275.04 | $324.26 | +14.28% | 27,337,589 |
| Apr 2026 | $234.57 | $294.05 | $222.42 | $283.75 | +23.47% | 21,306,678 |
| Mar 2026 | $239.44 | $247.90 | $200.50 | $229.81 | -5.99% | 27,354,743 |
| Feb 2026 | $231.71 | $269.91 | $212.91 | $244.46 | +3.84% | 36,662,190 |
| Jan 2026 | $164.54 | $246.35 | $164.54 | $235.41 | +47.32% | 28,356,637 |
| Dec 2025 | $155.96 | $170.37 | $146.90 | $159.80 | +2.18% | 18,238,808 |
| Nov 2025 | $143.93 | $160.18 | $134.74 | $156.39 | +8.82% | 19,292,066 |
| Oct 2025 | $122.14 | $147.31 | $120.91 | $143.71 | +16.11% | 23,769,856 |
| Sep 2025 | $99.85 | $132.44 | $97.50 | $123.77 | +19.77% | 30,385,987 |
| Aug 2025 | $92.10 | $107.84 | $88.49 | $103.34 | +8.57% | 21,966,155 |
| Jul 2025 | $97.81 | $107.88 | $93.86 | $95.18 | -4.21% | 20,517,503 |
| Jun 2025 | $81.78 | $100.80 | $80.23 | $99.36 | +20.89% | 19,267,644 |
| May 2025 | $71.81 | $94.53 | $70.51 | $82.19 | +17.18% | 25,229,490 |
| Apr 2025 | $79.45 | $82.85 | $54.84 | $70.14 | -12.49% | 44,185,505 |
| Mar 2025 | $92.46 | $93.31 | $76.37 | $80.15 | -12.71% | 27,585,582 |
| Feb 2025 | $109.32 | $113.82 | $90.07 | $91.82 | -18.94% | 18,962,481 |
| Jan 2025 | $105.42 | $125.33 | $105.03 | $113.28 | +8.52% | 17,666,880 |
| Dec 2024 | $113.41 | $119.37 | $101.25 | $104.39 | -8.14% | 15,063,283 |
| Nov 2024 | $100.55 | $118.92 | $99.16 | $113.64 | +14.41% | 16,598,254 |
| Oct 2024 | $108.90 | $113.35 | $97.54 | $99.33 | -8.63% | 19,325,030 |
| Sep 2024 | $115.97 | $115.97 | $104.00 | $108.71 | -8.82% | 18,667,913 |
| Aug 2024 | $123.46 | $124.99 | $100.31 | $119.23 | -5.30% | 20,483,328 |
| Jul 2024 | $130.39 | $147.40 | $117.65 | $125.90 | -3.58% | 20,988,136 |
| Jun 2024 | $129.41 | $139.20 | $122.65 | $130.58 | +3.15% | 18,565,756 |
| May 2024 | $117.60 | $135.00 | $114.53 | $126.59 | +6.40% | 23,409,328 |
| Apr 2024 | $133.00 | $135.52 | $107.19 | $118.98 | -10.54% | 12,984,549 |
| Mar 2024 | $122.89 | $134.70 | $117.29 | $133.00 | +8.34% | 12,624,307 |
| Feb 2024 | $107.28 | $127.72 | $105.86 | $122.76 | +15.32% | 12,983,994 |
| Jan 2024 | $100.90 | $115.29 | $95.71 | $106.45 | +3.48% | 14,028,860 |
| Dec 2023 | $82.23 | $106.13 | $80.84 | $102.87 | +24.62% | 16,585,008 |
| Nov 2023 | $65.20 | $83.10 | $63.44 | $82.55 | +25.72% | 16,591,726 |
| Oct 2023 | $87.15 | $88.98 | $64.46 | $65.66 | -24.13% | 15,053,316 |
| Sep 2023 | $100.93 | $101.62 | $82.76 | $86.54 | -13.66% | 10,357,994 |
| Aug 2023 | $108.45 | $108.61 | $88.44 | $100.23 | -8.19% | 13,236,451 |
| Jul 2023 | $108.49 | $109.93 | $102.01 | $109.17 | +0.99% | 12,484,521 |
| Jun 2023 | $97.16 | $110.47 | $92.26 | $108.10 | +11.09% | 14,074,452 |
| May 2023 | $83.62 | $102.15 | $80.01 | $97.31 | +16.02% | 16,079,029 |
| Apr 2023 | $87.87 | $88.79 | $79.63 | $83.87 | -5.36% | 8,914,204 |
| Mar 2023 | $96.92 | $97.80 | $81.87 | $88.62 | -8.57% | 13,965,558 |
| Feb 2023 | $102.71 | $114.15 | $90.22 | $96.93 | -5.27% | 13,294,450 |
| Jan 2023 | $86.81 | $106.90 | $83.32 | $102.32 | +20.76% | 14,149,745 |
| Dec 2022 | $83.86 | $91.53 | $77.73 | $84.73 | +1.04% | 17,702,528 |
| Nov 2022 | $84.48 | $84.68 | $64.77 | $83.86 | +2.08% | 20,282,211 |
| Oct 2022 | $84.14 | $90.46 | $72.47 | $82.15 | -0.59% | 12,638,428 |
| Sep 2022 | $96.72 | $101.92 | $81.50 | $82.64 | -17.04% | 14,166,687 |
| Aug 2022 | $117.51 | $123.93 | $98.08 | $99.61 | -15.73% | 13,587,827 |
| Jul 2022 | $101.08 | $119.80 | $92.66 | $118.20 | +15.17% | 10,541,144 |
| Jun 2022 | $125.09 | $125.56 | $97.64 | $102.63 | -16.90% | 12,962,475 |
| May 2022 | $114.36 | $126.49 | $110.59 | $123.50 | +8.35% | 10,750,949 |
| Apr 2022 | $151.25 | $152.87 | $110.26 | $113.98 | -24.01% | 16,660,600 |
| Mar 2022 | $149.99 | $163.89 | $135.56 | $150.00 | -0.40% | 12,433,527 |
| Feb 2022 | $155.25 | $156.51 | $136.23 | $150.60 | -3.05% | 9,688,430 |
| Jan 2022 | $174.83 | $181.03 | $142.00 | $155.33 | -10.82% | 10,896,140 |
| Dec 2021 | $155.91 | $178.66 | $150.72 | $174.17 | +14.47% | 8,899,149 |
| Nov 2021 | $150.06 | $169.88 | $149.27 | $152.16 | +1.41% | 9,751,841 |
| Oct 2021 | $151.52 | $151.99 | $140.87 | $150.05 | -0.57% | 8,624,149 |
| Sep 2021 | $148.10 | $155.31 | $144.19 | $150.91 | +2.53% | 8,707,985 |
| Aug 2021 | $158.14 | $160.84 | $138.70 | $147.18 | -5.92% | 8,412,841 |
| Jul 2021 | $172.66 | $175.01 | $151.00 | $156.44 | -12.09% | 12,469,345 |
| Jun 2021 | $190.00 | $191.85 | $166.79 | $177.95 | -5.46% | 6,870,641 |
| May 2021 | $181.16 | $190.50 | $165.04 | $188.23 | +5.09% | 6,304,431 |
| Apr 2021 | $189.34 | $199.44 | $175.56 | $179.11 | -3.40% | 7,293,435 |
| Mar 2021 | $168.00 | $189.28 | $144.08 | $185.42 | +12.44% | 10,359,771 |
| Feb 2021 | $160.21 | $177.36 | $146.07 | $164.90 | +4.32% | 12,739,035 |
| Jan 2021 | $151.09 | $192.30 | $148.35 | $158.07 | +5.06% | 7,739,853 |
| Dec 2020 | $139.54 | $158.08 | $138.54 | $150.45 | +9.04% | 7,035,742 |
| Nov 2020 | $109.74 | $139.47 | $109.74 | $137.98 | +27.30% | 4,911,095 |
| Oct 2020 | $110.41 | $120.64 | $106.00 | $108.39 | -0.77% | 7,013,324 |
| Sep 2020 | $120.28 | $124.19 | $101.78 | $109.23 | -8.62% | 7,935,632 |
| Aug 2020 | $128.06 | $129.97 | $116.85 | $119.53 | -6.21% | 6,364,057 |
| Jul 2020 | $114.59 | $129.67 | $108.54 | $127.44 | +12.54% | 8,341,412 |
| Jun 2020 | $105.09 | $116.85 | $100.81 | $113.24 | +7.20% | 10,603,079 |
| May 2020 | $96.55 | $107.36 | $90.11 | $105.63 | +5.39% | 6,117,132 |
| Apr 2020 | $77.00 | $110.75 | $73.60 | $100.23 | +23.06% | 8,434,267 |
| Mar 2020 | $100.68 | $102.67 | $66.87 | $81.45 | -18.70% | 11,965,865 |
| Feb 2020 | $105.67 | $122.30 | $93.45 | $100.19 | -4.42% | 7,859,457 |
| Jan 2020 | $112.07 | $119.22 | $104.50 | $104.82 | -4.72% | 11,546,429 |
| Dec 2019 | $106.92 | $113.73 | $103.35 | $110.01 | +3.51% | 8,324,708 |
| Nov 2019 | $108.94 | $114.74 | $101.83 | $106.28 | -1.79% | 7,136,520 |
| Oct 2019 | $93.02 | $115.12 | $85.01 | $108.22 | +17.27% | 9,957,760 |
| Sep 2019 | $77.00 | $95.73 | $76.14 | $92.28 | +17.87% | 9,753,690 |
| Aug 2019 | $84.72 | $86.39 | $72.15 | $78.29 | -8.03% | 9,499,775 |
| Jul 2019 | $81.28 | $89.68 | $76.21 | $85.13 | +9.30% | 10,670,608 |
| Jun 2019 | $71.93 | $80.16 | $70.47 | $77.89 | +9.00% | 9,981,077 |
| May 2019 | $90.23 | $92.22 | $71.30 | $71.46 | -21.48% | 11,719,837 |
| Apr 2019 | $94.27 | $103.86 | $88.30 | $91.01 | -2.19% | 12,081,048 |
| Mar 2019 | $83.90 | $93.72 | $77.37 | $93.05 | +12.28% | 14,744,010 |
| Feb 2019 | $81.79 | $87.09 | $79.53 | $82.87 | +1.52% | 8,801,728 |
| Jan 2019 | $63.25 | $83.30 | $62.72 | $81.63 | +26.34% | 15,460,035 |
| Dec 2018 | $80.59 | $81.73 | $56.37 | $64.61 | -17.65% | 13,968,918 |
| Nov 2018 | $74.34 | $79.19 | $68.73 | $78.46 | +6.47% | 8,816,062 |
| Oct 2018 | $80.55 | $82.23 | $67.83 | $73.69 | -8.06% | 13,265,318 |
| Sep 2018 | $92.50 | $93.05 | $78.80 | $80.15 | -13.72% | 8,449,806 |
| Aug 2018 | $94.60 | $95.65 | $87.10 | $92.90 | -1.48% | 12,857,846 |
| Jul 2018 | $94.55 | $103.20 | $88.25 | $94.30 | -1.46% | 13,947,827 |
| Jun 2018 | $113.40 | $118.75 | $91.90 | $95.70 | -14.71% | 23,538,733 |
| May 2018 | $102.40 | $118.35 | $101.10 | $112.20 | +9.57% | 9,241,904 |
| Apr 2018 | $115.10 | $122.77 | $99.11 | $102.40 | -11.46% | 13,858,412 |
| Mar 2018 | $111.10 | $128.28 | $109.40 | $115.65 | +3.86% | 10,767,578 |
| Feb 2018 | $104.55 | $116.55 | $94.30 | $111.35 | +8.85% | 12,830,792 |
| Jan 2018 | $95.05 | $108.25 | $94.10 | $102.30 | +8.25% | 10,686,724 |
| Dec 2017 | $94.10 | $99.50 | $88.10 | $94.50 | +0.21% | 10,882,683 |
| Nov 2017 | $109.55 | $109.55 | $91.50 | $94.30 | -13.21% | 21,607,321 |
| Oct 2017 | $95.05 | $110.60 | $93.15 | $108.65 | +15.03% | 10,371,453 |
| Sep 2017 | $82.80 | $95.50 | $81.35 | $94.45 | +14.69% | 9,968,361 |
| Aug 2017 | $84.45 | $84.90 | $75.90 | $82.35 | -1.55% | 9,552,709 |
| Jul 2017 | $68.30 | $86.60 | $66.80 | $83.65 | +24.29% | 14,316,257 |
| Jun 2017 | $81.90 | $88.40 | $65.90 | $67.30 | -17.68% | 14,565,706 |
| May 2017 | $78.90 | $82.65 | $76.70 | $81.75 | +4.47% | 9,836,755 |
| Apr 2017 | $68.75 | $81.00 | $64.75 | $78.25 | +13.82% | 8,237,854 |
| Mar 2017 | $66.55 | $70.40 | $64.45 | $68.75 | +4.80% | 7,557,530 |
| Feb 2017 | $66.60 | $68.85 | $62.85 | $65.60 | -0.46% | 7,078,286 |
| Jan 2017 | $60.00 | $66.97 | $58.95 | $65.90 | +10.94% | 6,875,624 |
| Dec 2016 | $57.40 | $61.30 | $53.51 | $59.40 | +3.21% | 7,484,542 |
| Nov 2016 | $50.50 | $59.10 | $48.05 | $57.55 | +14.07% | 8,261,008 |
| Oct 2016 | $49.36 | $52.15 | $46.51 | $50.45 | +1.45% | 6,512,128 |
| Sep 2016 | $48.89 | $50.16 | $45.85 | $49.73 | +2.03% | 8,274,200 |
| Aug 2016 | $46.04 | $49.58 | $44.82 | $48.74 | +6.70% | 8,375,100 |
| Jul 2016 | $42.85 | $54.73 | $41.34 | $45.68 | +6.08% | 9,871,300 |
| Jun 2016 | $40.91 | $43.06 | $39.32 | $43.06 | +5.08% | 7,067,200 |
| May 2016 | $36.06 | $41.00 | $35.02 | $40.98 | +14.28% | 6,116,200 |
| Apr 2016 | $37.32 | $38.86 | $35.62 | $35.86 | -4.75% | 5,462,800 |
| Mar 2016 | $33.12 | $38.14 | $32.92 | $37.65 | +14.44% | 5,185,000 |
| Feb 2016 | $35.13 | $35.20 | $30.67 | $32.90 | -7.17% | 5,798,600 |
| Jan 2016 | $35.99 | $36.53 | $32.41 | $35.44 | -1.56% | 6,278,400 |
| Dec 2015 | $36.95 | $38.25 | $35.19 | $36.00 | -2.36% | 5,627,600 |
| Nov 2015 | $35.19 | $37.20 | $34.84 | $36.87 | +4.63% | 4,845,800 |
| Oct 2015 | $33.43 | $36.24 | $29.00 | $35.24 | +5.10% | 7,011,900 |
| Sep 2015 | $33.07 | $35.47 | $31.62 | $33.53 | -0.50% | 4,577,200 |
| Aug 2015 | $35.58 | $36.27 | $32.00 | $33.70 | -5.07% | 4,637,200 |
| Jul 2015 | $38.37 | $38.51 | $34.52 | $35.50 | -6.43% | 5,507,600 |
| Jun 2015 | $37.91 | $39.65 | $37.29 | $37.94 | +0.61% | 6,024,100 |
| May 2015 | $34.92 | $37.97 | $34.56 | $37.71 | +8.33% | 4,898,600 |
| Apr 2015 | $33.78 | $36.50 | $32.73 | $34.81 | +2.96% | 5,944,700 |
| Mar 2015 | $35.48 | $36.60 | $33.32 | $33.81 | -4.38% | 4,603,500 |
| Feb 2015 | $35.01 | $36.39 | $34.62 | $35.36 | +1.00% | 3,183,700 |
| Jan 2015 | $36.86 | $36.97 | $32.94 | $35.01 | -4.34% | 5,596,800 |
| Dec 2014 | $36.47 | $37.83 | $34.78 | $36.60 | +0.44% | 5,670,000 |
| Nov 2014 | $36.56 | $37.18 | $34.53 | $36.44 | +0.11% | 5,401,800 |
| Oct 2014 | $33.40 | $36.96 | $30.52 | $36.40 | +9.05% | 7,428,700 |
| Sep 2014 | $34.19 | $34.89 | $33.14 | $33.38 | -1.65% | 5,719,400 |
| Aug 2014 | $31.87 | $34.03 | $31.48 | $33.94 | +6.80% | 5,353,400 |
| Jul 2014 | $31.41 | $32.94 | $30.87 | $31.78 | +1.73% | 6,900,900 |
| Jun 2014 | $28.84 | $31.33 | $28.37 | $31.24 | +8.28% | 5,325,900 |
| May 2014 | $28.02 | $29.49 | $26.80 | $28.85 | +2.49% | 4,763,000 |
| Apr 2014 | $30.00 | $31.01 | $27.28 | $28.15 | -5.82% | 5,734,100 |
| Mar 2014 | $29.86 | $31.85 | $28.96 | $29.89 | -0.57% | 3,752,600 |
| Feb 2014 | $30.05 | $30.46 | $28.52 | $30.06 | -0.23% | 4,191,600 |
| Jan 2014 | $29.85 | $32.50 | $28.71 | $30.13 | +0.70% | 5,799,400 |
| Dec 2013 | $29.78 | $30.02 | $28.52 | $29.92 | +0.50% | 4,553,700 |
| Nov 2013 | $29.59 | $30.00 | $28.23 | $29.77 | +0.44% | 3,780,100 |
| Oct 2013 | $26.55 | $31.00 | $26.39 | $29.64 | +11.47% | 6,664,600 |
| Sep 2013 | $25.42 | $26.80 | $24.71 | $26.59 | +6.15% | 4,491,800 |
| Aug 2013 | $27.30 | $27.60 | $24.93 | $25.05 | -7.63% | 5,268,100 |
| Jul 2013 | $26.70 | $28.97 | $26.03 | $27.12 | +2.19% | 4,653,900 |
| Jun 2013 | $28.21 | $29.02 | $26.25 | $26.54 | -5.72% | 4,800,200 |
| May 2013 | $26.70 | $28.34 | $25.63 | $28.15 | +4.76% | 3,800,100 |
| Apr 2013 | $27.10 | $27.24 | $24.64 | $26.87 | -1.21% | 7,753,500 |
| Mar 2013 | $26.86 | $27.99 | $25.74 | $27.20 | +0.22% | 4,384,600 |
| Feb 2013 | $27.97 | $28.84 | $26.83 | $27.14 | -2.37% | 5,418,500 |
| Jan 2013 | $26.33 | $29.45 | $25.67 | $27.80 | +7.84% | 6,579,200 |
| Dec 2012 | $24.37 | $25.87 | $23.84 | $25.78 | +6.31% | 4,873,900 |
| Nov 2012 | $23.59 | $24.62 | $22.60 | $24.25 | +2.71% | 5,266,400 |
| Oct 2012 | $25.49 | $25.55 | $22.45 | $23.61 | -7.38% | 7,598,200 |
| Sep 2012 | $26.76 | $28.31 | $24.92 | $25.49 | -5.98% | 4,558,300 |
| Aug 2012 | $26.46 | $27.91 | $25.25 | $27.11 | +2.69% | 4,696,800 |
| Jul 2012 | $28.86 | $29.75 | $24.18 | $26.40 | -8.52% | 5,317,500 |
| Jun 2012 | $25.51 | $28.95 | $25.43 | $28.86 | +10.36% | 5,865,200 |
| May 2012 | $27.56 | $28.34 | $23.93 | $26.15 | -5.42% | 6,071,900 |
| Apr 2012 | $29.39 | $29.75 | $26.92 | $27.65 | -6.37% | 4,749,300 |
| Mar 2012 | $30.22 | $30.90 | $27.72 | $29.53 | -1.40% | 6,767,700 |
| Feb 2012 | $30.28 | $34.99 | $29.92 | $29.95 | -0.66% | 7,107,900 |
| Jan 2012 | $28.78 | $30.74 | $27.33 | $30.15 | +8.38% | 5,609,500 |
| Dec 2011 | $26.72 | $28.89 | $25.82 | $27.82 | +3.57% | 6,065,900 |
| Nov 2011 | $25.54 | $28.37 | $22.57 | $26.86 | +0.83% | 7,722,700 |
| Oct 2011 | $21.42 | $27.78 | $20.01 | $26.64 | +22.71% | 7,225,600 |
| Sep 2011 | $23.27 | $25.14 | $20.96 | $21.71 | -6.50% | 7,317,400 |
| Aug 2011 | $25.29 | $25.47 | $21.07 | $23.22 | -6.93% | 10,830,200 |
| Jul 2011 | $26.49 | $27.75 | $23.54 | $24.95 | -5.56% | 8,973,600 |
| Jun 2011 | $26.23 | $26.47 | $23.37 | $26.42 | +0.46% | 9,354,800 |
| May 2011 | $28.43 | $28.49 | $25.15 | $26.30 | -7.33% | 9,228,000 |
| Apr 2011 | $33.68 | $33.85 | $27.92 | $28.38 | -14.77% | 8,483,400 |
| Mar 2011 | $30.30 | $33.68 | $27.15 | $33.30 | +10.93% | 10,371,800 |
| Feb 2011 | $28.91 | $31.42 | $27.37 | $30.02 | +4.56% | 8,435,000 |
| Jan 2011 | $24.75 | $29.23 | $23.09 | $28.71 | +17.18% | 8,603,800 |
| Dec 2010 | $20.84 | $24.87 | $20.60 | $24.50 | +20.27% | 6,604,900 |
| Nov 2010 | $20.80 | $21.79 | $20.04 | $20.37 | -1.36% | 5,564,300 |
| Oct 2010 | $18.15 | $20.99 | $17.31 | $20.65 | +14.85% | 5,862,100 |
| Sep 2010 | $17.59 | $19.36 | $16.50 | $17.98 | +4.23% | 7,239,300 |
| Aug 2010 | $21.97 | $22.05 | $17.21 | $17.25 | -19.62% | 6,576,400 |
| Jul 2010 | $18.85 | $22.26 | $17.74 | $21.46 | +14.64% | 8,187,100 |
| Jun 2010 | $19.70 | $21.82 | $17.45 | $18.72 | -5.74% | 6,680,100 |
| May 2010 | $22.85 | $23.26 | $18.38 | $19.86 | -12.43% | 8,880,300 |
| Apr 2010 | $19.65 | $24.88 | $19.42 | $22.68 | +15.77% | 7,846,800 |
| Mar 2010 | $18.19 | $20.00 | $18.02 | $19.59 | +8.65% | 6,155,500 |
| Feb 2010 | $16.62 | $19.77 | $16.47 | $18.03 | +8.61% | 7,800,200 |
| Jan 2010 | $17.67 | $19.35 | $15.94 | $16.60 | -4.60% | 5,764,200 |
| Dec 2009 | $15.33 | $17.73 | $15.24 | $17.40 | +14.85% | 4,748,400 |
| Nov 2009 | $15.79 | $16.84 | $14.80 | $15.15 | -3.13% | 3,387,900 |
| Oct 2009 | $19.13 | $20.24 | $15.42 | $15.64 | -18.92% | 7,079,900 |
| Sep 2009 | $18.24 | $20.60 | $18.04 | $19.29 | +4.67% | 4,057,800 |
| Aug 2009 | $19.48 | $19.75 | $17.41 | $18.43 | -4.85% | 4,269,500 |
| Jul 2009 | $13.33 | $20.12 | $13.28 | $19.37 | +47.41% | 11,072,400 |
| Jun 2009 | $13.57 | $14.68 | $12.75 | $13.14 | -2.52% | 5,165,600 |
| May 2009 | $15.65 | $15.96 | $12.84 | $13.48 | -13.87% | 6,097,600 |
| Apr 2009 | $14.50 | $17.50 | $13.95 | $15.65 | +6.68% | 7,240,100 |
| Mar 2009 | $12.48 | $16.29 | $11.38 | $14.67 | +16.52% | 6,216,600 |
| Feb 2009 | $13.82 | $16.25 | $12.58 | $12.59 | -10.39% | 7,121,800 |
| Jan 2009 | $14.82 | $15.63 | $12.69 | $14.05 | -5.00% | 6,339,000 |
| Dec 2008 | $13.92 | $16.71 | $12.05 | $14.79 | +3.35% | 9,432,800 |
| Nov 2008 | $18.57 | $19.09 | $11.76 | $14.31 | -22.86% | 8,897,900 |
| Oct 2008 | $19.66 | $19.79 | $14.51 | $18.55 | -6.83% | 12,389,400 |
| Sep 2008 | $22.96 | $23.22 | $19.00 | $19.91 | -11.67% | 12,075,300 |
| Aug 2008 | $20.61 | $23.87 | $20.33 | $22.54 | +9.42% | 8,076,000 |
| Jul 2008 | $22.04 | $25.00 | $19.71 | $20.60 | -5.94% | 13,824,600 |
| Jun 2008 | $23.46 | $25.17 | $21.90 | $21.90 | -7.05% | 9,234,900 |
| May 2008 | $22.79 | $25.88 | $22.79 | $23.56 | +3.11% | 7,904,100 |
| Apr 2008 | $21.87 | $24.69 | $20.91 | $22.85 | +6.78% | 12,624,700 |
| Mar 2008 | $20.14 | $22.24 | $19.43 | $21.40 | +6.52% | 10,092,300 |
| Feb 2008 | $18.79 | $21.31 | $17.77 | $20.09 | +8.01% | 11,803,100 |
| Jan 2008 | $19.14 | $19.53 | $15.90 | $18.60 | -2.82% | 10,623,900 |
| Dec 2007 | $18.13 | $20.08 | $17.55 | $19.14 | +5.34% | 7,721,700 |
| Nov 2007 | $19.79 | $19.83 | $16.94 | $18.17 | -9.51% | 10,349,000 |
| Oct 2007 | $19.01 | $21.71 | $18.74 | $20.08 | +5.57% | 10,847,700 |
| Sep 2007 | $21.99 | $22.50 | $18.91 | $19.02 | -13.70% | 14,978,900 |
| Aug 2007 | $22.66 | $23.69 | $19.50 | $22.04 | -2.91% | 18,378,700 |
| Jul 2007 | $27.78 | $28.15 | $22.53 | $22.70 | -18.05% | 17,790,800 |
| Jun 2007 | $27.33 | $28.47 | $26.13 | $27.70 | +1.65% | 13,901,300 |
| May 2007 | $26.99 | $27.60 | $25.55 | $27.25 | +1.11% | 12,621,600 |
| Apr 2007 | $25.63 | $28.08 | $25.46 | $26.95 | +5.60% | 8,980,300 |
| Mar 2007 | $23.72 | $26.00 | $22.58 | $25.52 | +5.80% | 12,047,400 |
| Feb 2007 | $22.02 | $25.23 | $21.77 | $24.12 | +10.29% | 15,108,500 |
| Jan 2007 | $22.45 | $23.84 | $21.11 | $21.87 | -3.14% | 9,617,900 |
| Dec 2006 | $20.74 | $23.36 | $20.34 | $22.58 | +8.71% | 15,253,400 |
| Nov 2006 | $21.65 | $21.91 | $19.99 | $20.77 | -4.06% | 9,771,200 |
| Oct 2006 | $20.15 | $23.00 | $19.54 | $21.65 | +6.60% | 7,813,700 |
| Sep 2006 | $21.06 | $21.09 | $19.56 | $20.31 | -2.78% | 5,723,000 |
| Aug 2006 | $20.44 | $21.16 | $18.76 | $20.89 | +1.06% | 7,084,300 |
| Jul 2006 | $20.09 | $23.60 | $17.84 | $20.67 | +2.73% | 8,529,400 |
| Jun 2006 | $21.80 | $22.36 | $18.66 | $20.12 | -7.83% | 8,018,500 |
| May 2006 | $23.67 | $24.90 | $19.77 | $21.83 | -8.24% | 10,246,200 |
| Apr 2006 | $23.37 | $24.97 | $22.10 | $23.79 | +1.54% | 6,908,400 |
| Mar 2006 | $22.30 | $23.72 | $21.54 | $23.43 | +4.79% | 8,269,000 |
| Feb 2006 | $21.52 | $23.75 | $20.94 | $22.36 | +2.80% | 7,916,400 |
| Jan 2006 | $17.85 | $22.05 | $17.05 | $21.75 | +21.58% | 5,133,300 |
| Dec 2005 | $18.78 | $19.72 | $17.44 | $17.89 | -5.19% | 3,632,500 |
| Nov 2005 | $18.85 | $19.37 | $18.17 | $18.87 | 0.00% | 4,025,700 |
| Oct 2005 | $17.17 | $18.96 | $17.02 | $18.87 | +9.52% | 6,099,900 |
| Sep 2005 | $17.76 | $18.06 | $15.29 | $17.23 | -2.98% | 4,014,800 |
| Aug 2005 | $19.07 | $19.33 | $17.14 | $17.76 | -7.06% | 5,391,800 |
| Jul 2005 | $17.00 | $20.69 | $16.61 | $19.11 | +13.14% | 5,616,500 |
| Jun 2005 | $16.62 | $18.10 | $16.45 | $16.89 | +1.20% | 4,832,400 |
| May 2005 | $14.73 | $16.83 | $14.52 | $16.69 | +12.77% | 4,636,000 |
| Apr 2005 | $16.10 | $16.48 | $13.96 | $14.80 | -6.80% | 6,855,200 |
| Mar 2005 | $18.41 | $18.86 | $15.02 | $15.88 | -14.12% | 7,000,500 |
| Feb 2005 | $15.56 | $19.00 | $15.56 | $18.49 | +18.15% | 9,531,500 |
| Jan 2005 | $18.45 | $18.65 | $14.46 | $15.65 | -15.63% | 7,696,600 |
| Dec 2004 | $17.03 | $18.84 | $16.81 | $18.55 | +9.18% | 6,332,000 |
| Nov 2004 | $15.71 | $17.41 | $15.35 | $16.99 | +7.40% | 5,730,100 |
| Oct 2004 | $15.59 | $17.29 | $14.36 | $15.82 | +3.26% | 7,514,300 |
| Sep 2004 | $13.44 | $16.58 | $13.00 | $15.32 | +13.99% | 10,184,400 |
| Aug 2004 | $14.77 | $14.87 | $12.65 | $13.44 | -8.70% | 7,822,800 |
| Jul 2004 | $22.65 | $22.79 | $12.44 | $14.72 | -35.50% | 14,335,300 |
| Jun 2004 | $23.21 | $23.59 | $20.33 | $22.82 | -2.31% | 8,874,300 |
| May 2004 | $19.44 | $23.38 | $18.62 | $23.36 | +21.67% | 11,183,200 |
| Apr 2004 | $23.91 | $26.20 | $19.13 | $19.20 | -20.03% | 12,782,700 |
| Mar 2004 | $24.10 | $25.15 | $21.08 | $24.01 | -0.58% | 10,029,100 |
| Feb 2004 | $23.79 | $26.26 | $21.66 | $24.15 | +2.16% | 11,469,000 |
| Jan 2004 | $29.06 | $29.97 | $21.45 | $23.64 | -18.48% | 13,218,700 |
| Dec 2003 | $27.31 | $29.41 | $23.04 | $29.00 | +4.43% | 6,922,900 |
| Nov 2003 | $25.92 | $29.04 | $25.50 | $27.77 | +6.77% | 6,391,500 |
| Oct 2003 | $21.99 | $26.56 | $20.36 | $26.01 | +20.08% | 11,819,100 |
| Sep 2003 | $26.75 | $27.26 | $21.61 | $21.66 | -21.29% | 6,461,800 |
| Aug 2003 | $22.50 | $27.55 | $20.09 | $27.52 | +22.42% | 6,577,600 |
| Jul 2003 | $17.97 | $23.96 | $17.22 | $22.48 | +23.31% | 8,460,200 |
| Jun 2003 | $19.55 | $21.15 | $16.70 | $18.23 | -6.51% | 7,364,800 |
| May 2003 | $13.85 | $19.91 | $13.26 | $19.50 | +40.19% | 5,428,400 |
| Apr 2003 | $12.60 | $14.86 | $11.79 | $13.91 | +11.28% | 4,708,600 |
| Mar 2003 | $13.35 | $13.75 | $10.68 | $12.50 | -5.66% | 6,762,400 |
| Feb 2003 | $13.37 | $14.21 | $11.86 | $13.25 | -2.14% | 8,101,300 |
| Jan 2003 | $16.50 | $20.44 | $12.90 | $13.54 | -17.59% | 10,450,800 |
| Dec 2002 | $19.45 | $20.15 | $13.87 | $16.43 | -13.71% | 8,761,300 |
| Nov 2002 | $13.25 | $19.65 | $12.70 | $19.04 | +45.01% | 8,553,300 |
| Oct 2002 | $11.06 | $13.57 | $8.41 | $13.13 | +20.24% | 12,643,600 |
| Sep 2002 | $13.61 | $13.74 | $9.75 | $10.92 | -19.35% | 6,840,400 |
| Aug 2002 | $16.87 | $16.99 | $13.10 | $13.54 | -20.35% | 9,028,200 |
| Jul 2002 | $20.08 | $20.75 | $14.80 | $17.00 | -15.30% | 12,976,300 |
| Jun 2002 | $31.23 | $31.23 | $16.57 | $20.07 | -34.63% | 11,553,900 |
| May 2002 | $33.90 | $39.46 | $29.85 | $30.70 | -9.41% | 7,462,100 |
| Apr 2002 | $33.76 | $38.94 | $29.54 | $33.89 | -1.02% | 6,566,800 |
| Mar 2002 | $27.10 | $34.29 | $26.80 | $34.24 | +27.48% | 6,199,500 |
| Feb 2002 | $24.31 | $27.38 | $22.05 | $26.86 | +11.78% | 5,576,500 |
| Jan 2002 | $27.05 | $28.95 | $22.73 | $24.03 | -11.10% | 3,175,400 |
| Dec 2001 | $22.31 | $27.67 | $21.30 | $27.03 | +20.56% | 3,675,200 |
| Nov 2001 | $21.58 | $25.50 | $21.21 | $22.42 | +3.89% | 3,019,700 |
| Oct 2001 | $17.75 | $22.23 | $16.16 | $21.58 | +21.58% | 3,398,100 |
| Sep 2001 | $22.25 | $23.10 | $15.17 | $17.75 | -20.58% | 2,951,600 |
| Aug 2001 | $27.00 | $29.94 | $21.02 | $22.35 | -12.66% | 5,025,600 |
| Jul 2001 | $28.30 | $29.06 | $22.51 | $25.59 | -11.15% | 3,249,100 |
| Jun 2001 | $26.61 | $31.92 | $22.86 | $28.80 | +7.87% | 4,254,300 |
| May 2001 | $25.00 | $31.97 | $24.23 | $26.70 | +5.91% | 7,622,400 |
| Apr 2001 | $18.32 | $26.73 | $17.13 | $25.21 | +34.74% | 7,457,500 |
| Mar 2001 | $17.38 | $22.13 | $16.75 | $18.71 | +6.91% | 5,217,200 |
| Feb 2001 | $23.50 | $23.88 | $16.75 | $17.50 | -25.53% | 5,773,900 |
| Jan 2001 | $15.41 | $24.63 | $15.41 | $23.50 | +51.61% | 5,957,000 |
| Dec 2000 | $15.20 | $19.19 | $14.25 | $15.50 | +2.48% | 3,832,900 |
| Nov 2000 | $18.44 | $18.94 | $14.38 | $15.13 | -17.69% | 4,853,300 |
| Oct 2000 | $25.81 | $25.81 | $16.69 | $18.38 | -32.88% | 7,793,000 |
| Sep 2000 | $35.13 | $35.38 | $26.56 | $27.38 | -22.06% | 3,125,500 |
| Aug 2000 | $25.38 | $36.00 | $16.81 | $35.13 | +39.45% | 7,789,300 |
| Jul 2000 | $38.84 | $40.75 | $22.63 | $25.19 | -35.62% | 4,966,500 |
| Jun 2000 | $39.00 | $44.13 | $32.00 | $39.13 | -0.63% | 2,452,600 |
| May 2000 | $45.88 | $52.19 | $31.88 | $39.38 | -16.22% | 1,767,800 |
| Apr 2000 | $49.63 | $57.00 | $35.63 | $47.00 | -6.93% | 1,764,800 |
| Mar 2000 | $45.75 | $62.25 | $42.50 | $50.50 | +10.99% | 3,329,100 |
| Feb 2000 | $32.81 | $46.75 | $32.75 | $45.50 | +39.73% | 4,364,500 |
| Jan 2000 | $34.75 | $46.19 | $30.50 | $32.56 | -9.86% | 2,219,700 |
| Dec 1999 | $25.00 | $36.50 | $23.75 | $36.13 | +45.23% | 897,000 |
| Nov 1999 | $21.88 | $29.94 | $21.38 | $24.88 | +18.45% | 1,113,900 |
| Oct 1999 | $22.22 | $22.25 | $19.25 | $21.00 | -5.62% | 2,525,200 |
| Sep 1999 | $18.38 | $22.50 | $18.25 | $22.25 | +21.09% | 1,114,400 |
| Aug 1999 | $21.31 | $22.00 | $18.38 | $18.38 | -13.78% | 1,251,200 |
| Jul 1999 | $18.88 | $21.75 | $17.75 | $21.31 | +14.43% | 1,053,900 |
| Jun 1999 | $15.38 | $19.75 | $14.75 | $18.63 | +22.13% | 1,828,100 |
| May 1999 | $14.00 | $15.63 | $12.00 | $15.25 | +11.93% | 2,207,000 |
| Apr 1999 | $13.38 | $17.00 | $11.88 | $13.63 | +1.87% | 3,808,400 |
| Mar 1999 | $14.06 | $14.50 | $13.38 | $13.38 | – | 5,515,800 |
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% |