KLA Corp (KLAC) stock
KLACNasdaqOptical Instruments & LensesFiscal year ends June 30
Financials through Q1 FY2027, quarter ended Sep 30, 2026Last filing: 10-Q on Oct 29, 2026Score 16/3021% above fair value
$157.91−9.52 (-5.69%)
Close on Oct 30, 2026Market cap $206.32BP/E 39.5Yield 0.51%
Price history
KLA share prices for every trading day, newest first. Adjusted for stock splits, not for dividends.
Close, Oct 30, 2026
$157.91
-5.69% on the day
52-week range
$107.20 – $307.37
-48.6% from the high
Change over 52 weeks
+30.0%
From $121.44 on Oct 30, 2025
Average volume
11.30M
Shares a day, last 90 sessions
| Date | Open | High | Low | Close | Change | Volume |
|---|---|---|---|---|---|---|
| Oct 30, 2026 | $159.54 | $164.25 | $156.03 | $157.91 | -5.69% | 22,420,310 |
| Oct 29, 2026 | $162.11 | $171.31 | $161.60 | $167.43 | +5.45% | 15,144,790 |
| Oct 28, 2026 | $155.56 | $160.96 | $155.20 | $158.77 | +3.33% | 11,566,750 |
| Oct 27, 2026 | $151.84 | $153.85 | $149.00 | $153.66 | +2.98% | 10,296,130 |
| Oct 26, 2026 | $147.85 | $151.69 | $146.62 | $149.21 | +2.47% | 10,802,340 |
| Oct 23, 2026 | $147.52 | $149.84 | $144.82 | $145.61 | -1.50% | 10,438,790 |
| Oct 22, 2026 | $154.80 | $155.04 | $146.55 | $147.83 | -9.55% | 20,740,660 |
| Oct 21, 2026 | $163.41 | $164.94 | $162.52 | $163.43 | +1.04% | 9,674,523 |
| Oct 20, 2026 | $164.55 | $165.31 | $159.90 | $161.74 | -2.80% | 12,670,130 |
| Oct 19, 2026 | $172.74 | $173.05 | $166.11 | $166.40 | +0.40% | 11,649,620 |
| Oct 16, 2026 | $169.76 | $171.66 | $165.20 | $165.74 | -5.00% | 13,127,050 |
| Oct 15, 2026 | $174.50 | $175.43 | $168.42 | $174.46 | -2.43% | 13,699,930 |
| Oct 14, 2026 | $180.55 | $184.58 | $177.39 | $178.81 | -2.82% | 14,471,390 |
| Oct 13, 2026 | $185.42 | $187.30 | $179.84 | $184.00 | -3.22% | 10,453,540 |
| Oct 12, 2026 | $193.68 | $193.99 | $189.44 | $190.12 | -2.79% | 7,715,102 |
| Oct 9, 2026 | $200.23 | $201.71 | $195.08 | $195.57 | -0.58% | 5,349,797 |
| Oct 8, 2026 | $192.72 | $202.22 | $191.09 | $196.72 | -0.06% | 10,148,400 |
| Oct 7, 2026 | $192.04 | $197.18 | $191.20 | $196.83 | -0.32% | 7,160,382 |
| Oct 6, 2026 | $207.34 | $207.66 | $196.83 | $197.46 | -4.54% | 9,613,238 |
| Oct 5, 2026 | $205.29 | $206.87 | $199.61 | $206.85 | -0.02% | 7,986,579 |
| Oct 2, 2026 | $207.81 | $208.68 | $204.06 | $206.89 | +3.27% | 7,356,292 |
| Oct 1, 2026 | $196.69 | $201.98 | $194.90 | $200.33 | +2.77% | 8,700,871 |
| Sep 30, 2026 | $196.01 | $197.60 | $193.95 | $194.93 | -0.81% | 6,858,967 |
| Sep 29, 2026 | $194.94 | $197.47 | $192.57 | $196.53 | +3.89% | 7,780,395 |
| Sep 28, 2026 | $186.71 | $190.70 | $182.70 | $189.17 | +0.67% | 8,707,232 |
| Sep 25, 2026 | $187.33 | $189.56 | $186.02 | $187.92 | +0.43% | 7,145,550 |
| Sep 24, 2026 | $185.81 | $187.96 | $182.40 | $187.11 | -0.40% | 7,799,572 |
| Sep 23, 2026 | $186.25 | $188.00 | $181.73 | $187.86 | -0.24% | 8,856,687 |
| Sep 22, 2026 | $180.71 | $188.60 | $179.70 | $188.32 | +2.36% | 9,312,547 |
| Sep 21, 2026 | $179.30 | $185.94 | $178.31 | $183.97 | +3.94% | 9,649,857 |
| Sep 18, 2026 | $170.50 | $177.14 | $169.72 | $176.99 | +4.74% | 20,072,510 |
| Sep 17, 2026 | $173.00 | $173.79 | $167.26 | $168.98 | +0.97% | 9,897,910 |
| Sep 16, 2026 | $171.52 | $171.72 | $165.89 | $167.36 | -0.39% | 6,711,318 |
| Sep 15, 2026 | $172.00 | $172.07 | $165.93 | $168.02 | -0.63% | 7,913,611 |
| Sep 14, 2026 | $168.08 | $173.03 | $167.57 | $169.09 | -6.39% | 12,055,380 |
| Sep 11, 2026 | $181.71 | $182.41 | $177.01 | $180.64 | +1.95% | 7,491,328 |
| Sep 10, 2026 | $176.67 | $180.64 | $174.18 | $177.18 | -3.13% | 10,643,120 |
| Sep 9, 2026 | $187.56 | $189.91 | $179.55 | $182.91 | -3.21% | 9,106,813 |
| Sep 8, 2026 | $190.15 | $190.87 | $185.84 | $188.98 | +1.82% | 12,404,390 |
| Sep 4, 2026 | $177.90 | $187.36 | $173.46 | $185.60 | +7.32% | 12,725,640 |
| Sep 3, 2026 | $169.47 | $173.09 | $167.05 | $172.94 | +0.39% | 6,863,516 |
| Sep 2, 2026 | $171.76 | $172.95 | $167.56 | $172.26 | +0.80% | 6,469,528 |
| Sep 1, 2026 | $172.74 | $173.20 | $168.07 | $170.89 | -2.60% | 10,479,040 |
| Aug 31, 2026 | $176.86 | $177.61 | $174.17 | $175.45 | -0.05% | 7,605,538 |
| Aug 28, 2026 | $182.04 | $182.60 | $174.70 | $175.54 | -4.48% | 9,970,532 |
| Aug 27, 2026 | $185.01 | $186.78 | $180.85 | $183.77 | -0.03% | 6,558,367 |
| Aug 26, 2026 | $183.41 | $184.26 | $179.70 | $183.83 | +0.27% | 5,962,821 |
| Aug 25, 2026 | $184.58 | $186.13 | $180.71 | $183.34 | +0.97% | 8,899,654 |
| Aug 24, 2026 | $180.02 | $182.84 | $176.45 | $181.57 | -1.32% | 9,874,765 |
| Aug 21, 2026 | $189.44 | $189.77 | $182.11 | $183.99 | -1.01% | 8,913,125 |
| Aug 20, 2026 | $185.56 | $189.36 | $184.55 | $185.86 | -0.75% | 7,330,129 |
| Aug 19, 2026 | $196.44 | $196.98 | $185.38 | $187.27 | -3.86% | 9,701,561 |
| Aug 18, 2026 | $195.47 | $199.52 | $191.78 | $194.79 | -5.33% | 13,529,950 |
| Aug 17, 2026 | $206.89 | $209.10 | $202.48 | $205.76 | +1.00% | 9,478,974 |
| Aug 14, 2026 | $206.80 | $208.87 | $200.86 | $203.72 | -2.70% | 7,357,856 |
| Aug 13, 2026 | $208.52 | $214.80 | $207.00 | $209.37 | +0.54% | 8,543,050 |
| Aug 12, 2026 | $210.10 | $210.27 | $205.22 | $208.25 | +3.88% | 11,951,860 |
| Aug 11, 2026 | $198.67 | $203.15 | $195.00 | $200.47 | +4.01% | 8,098,393 |
| Aug 10, 2026 | $204.78 | $205.06 | $192.47 | $192.74 | -2.71% | 10,318,270 |
| Aug 7, 2026 | $197.98 | $201.83 | $195.05 | $198.11 | +2.53% | 8,974,090 |
| Aug 6, 2026 | $189.59 | $198.32 | $185.77 | $193.22 | +0.22% | 13,257,390 |
| Aug 5, 2026 | $195.47 | $201.16 | $191.22 | $192.80 | -1.36% | 10,017,210 |
| Aug 4, 2026 | $191.98 | $196.73 | $188.13 | $195.45 | +6.95% | 13,251,400 |
| Aug 3, 2026 | $177.97 | $183.19 | $174.60 | $182.75 | -0.04% | 10,262,970 |
| Jul 31, 2026 | $188.00 | $190.00 | $179.65 | $182.82 | +1.38% | 13,512,370 |
| Jul 30, 2026 | $186.86 | $186.86 | $178.86 | $180.33 | +5.96% | 17,485,100 |
| Jul 29, 2026 | $177.63 | $191.37 | $169.81 | $170.19 | -10.80% | 20,427,580 |
| Jul 28, 2026 | $193.27 | $195.99 | $186.75 | $190.80 | -6.18% | 17,199,190 |
| Jul 27, 2026 | $210.82 | $214.01 | $195.56 | $203.36 | -3.40% | 14,202,350 |
| Jul 24, 2026 | $214.51 | $219.99 | $207.44 | $210.52 | -3.75% | 11,304,900 |
| Jul 23, 2026 | $213.39 | $219.03 | $212.86 | $218.73 | +1.88% | 8,774,025 |
| Jul 22, 2026 | $210.66 | $218.37 | $210.27 | $214.69 | -1.32% | 9,051,150 |
| Jul 21, 2026 | $220.25 | $221.00 | $214.23 | $217.56 | +4.80% | 9,947,430 |
| Jul 20, 2026 | $217.45 | $220.80 | $206.92 | $207.60 | -2.42% | 8,396,414 |
| Jul 17, 2026 | $208.45 | $216.79 | $204.58 | $212.75 | -3.02% | 13,061,830 |
| Jul 16, 2026 | $217.76 | $228.79 | $216.72 | $219.37 | -2.29% | 14,957,010 |
| Jul 15, 2026 | $235.96 | $236.55 | $216.47 | $224.50 | -2.55% | 10,625,460 |
| Jul 14, 2026 | $237.40 | $237.72 | $226.29 | $230.37 | +3.65% | 9,033,098 |
| Jul 13, 2026 | $221.55 | $226.86 | $218.89 | $222.25 | -4.00% | 9,947,501 |
| Jul 10, 2026 | $224.83 | $232.10 | $222.13 | $231.52 | +0.87% | 7,447,781 |
| Jul 9, 2026 | $239.02 | $247.49 | $228.00 | $229.52 | +3.77% | 13,066,440 |
| Jul 8, 2026 | $215.78 | $223.40 | $214.30 | $221.18 | +2.18% | 13,082,600 |
| Jul 7, 2026 | $217.12 | $223.79 | $210.86 | $216.47 | -7.22% | 17,710,890 |
| Jul 6, 2026 | $246.32 | $246.32 | $231.16 | $233.31 | -0.95% | 12,130,800 |
| Jul 2, 2026 | $266.00 | $267.33 | $228.01 | $235.55 | -11.51% | 23,648,860 |
| Jul 1, 2026 | $285.52 | $290.84 | $259.80 | $266.19 | -11.77% | 24,163,590 |
| Jun 30, 2026 | $280.28 | $307.37 | $279.03 | $301.71 | +8.38% | 19,909,270 |
| Jun 29, 2026 | $250.03 | $279.34 | $249.32 | $278.39 | +11.97% | 14,628,650 |
| Jun 26, 2026 | $246.77 | $253.00 | $243.09 | $248.64 | -3.93% | 21,394,350 |
| Jun 25, 2026 | $255.15 | $260.84 | $243.51 | $258.80 | +7.62% | 11,975,390 |
| Jun 24, 2026 | $242.11 | $245.30 | $235.00 | $240.48 | -1.64% | 11,543,660 |
| Jun 23, 2026 | $248.06 | $251.22 | $240.56 | $244.49 | -9.17% | 18,703,750 |
| Jun 22, 2026 | $265.61 | $269.90 | $262.38 | $269.16 | +3.70% | 11,719,840 |
| Jun 18, 2026 | $251.77 | $263.95 | $250.50 | $259.56 | +8.73% | 26,167,270 |
| Jun 17, 2026 | $244.95 | $251.16 | $237.66 | $238.73 | +0.59% | 13,213,530 |
| Jun 16, 2026 | $254.43 | $255.85 | $237.12 | $237.33 | -7.44% | 14,048,560 |
| Jun 15, 2026 | $263.57 | $267.17 | $251.11 | $256.42 | +0.74% | 18,368,180 |
| Jun 12, 2026 | $237.60 | $254.93 | $236.00 | $254.54 | +5.55% | 10,069,200 |
| Jun 11, 2026 | $221.34 | $243.13 | $220.63 | $241.16 | +12.92% | 17,694,020 |
| Jun 10, 2026 | $216.64 | $230.44 | $212.26 | $213.56 | -0.17% | 16,029,570 |
| Jun 9, 2026 | $217.00 | $226.28 | $199.55 | $213.94 | +1.49% | 16,365,980 |
| Jun 8, 2026 | $203.00 | $213.52 | $200.36 | $210.81 | +9.27% | 11,659,010 |
| Jun 5, 2026 | $204.30 | $205.50 | $192.77 | $192.92 | -9.47% | 18,586,290 |
| Jun 4, 2026 | $205.39 | $215.67 | $203.40 | $213.11 | +0.28% | 8,252,890 |
| Jun 3, 2026 | $204.83 | $214.55 | $201.95 | $212.51 | +3.91% | 10,200,240 |
| Jun 2, 2026 | $196.65 | $204.75 | $195.00 | $204.52 | +5.42% | 10,611,260 |
| Jun 1, 2026 | $189.86 | $194.81 | $188.60 | $194.00 | +0.95% | 7,361,010 |
| May 29, 2026 | $192.99 | $197.50 | $191.15 | $192.17 | -0.31% | 11,459,400 |
| May 28, 2026 | $195.63 | $196.05 | $189.14 | $192.76 | -1.51% | 8,858,460 |
| May 27, 2026 | $204.66 | $206.01 | $194.50 | $195.72 | -2.69% | 9,514,270 |
| May 26, 2026 | $193.67 | $202.28 | $191.43 | $201.14 | +6.51% | 11,508,700 |
| May 22, 2026 | $187.50 | $191.01 | $186.17 | $188.84 | +2.51% | 7,237,210 |
| May 21, 2026 | $182.90 | $187.50 | $182.32 | $184.22 | +0.69% | 8,208,980 |
| May 20, 2026 | $177.70 | $183.59 | $177.30 | $182.95 | +5.11% | 9,003,450 |
| May 19, 2026 | $170.87 | $176.50 | $169.03 | $174.06 | -0.90% | 11,172,920 |
| May 18, 2026 | $182.09 | $183.33 | $173.62 | $175.65 | -2.65% | 9,470,870 |
| May 15, 2026 | $183.07 | $184.55 | $180.26 | $180.43 | -4.68% | 9,803,800 |
| May 14, 2026 | $184.51 | $191.11 | $183.06 | $189.29 | +2.34% | 8,102,820 |
| May 13, 2026 | $183.59 | $186.50 | $179.49 | $184.97 | +2.12% | 9,380,840 |
| May 12, 2026 | $180.24 | $181.44 | $174.30 | $181.14 | -1.83% | 10,293,980 |
| May 11, 2026 | $185.28 | $189.75 | $184.36 | $184.52 | -1.28% | 12,129,410 |
| May 8, 2026 | $181.66 | $188.91 | $180.50 | $186.92 | +6.01% | 12,897,360 |
| May 7, 2026 | $181.73 | $182.00 | $174.60 | $176.33 | -2.92% | 12,415,620 |
| May 6, 2026 | $178.47 | $182.48 | $175.93 | $181.63 | +4.81% | 13,409,150 |
| May 5, 2026 | $174.53 | $176.72 | $171.59 | $173.29 | +1.14% | 11,941,460 |
| May 4, 2026 | $172.05 | $175.11 | $167.68 | $171.33 | -0.75% | 7,919,470 |
| May 1, 2026 | $173.30 | $174.50 | $169.50 | $172.63 | -1.38% | 7,893,860 |
| Apr 30, 2026 | $168.80 | $178.87 | $164.60 | $175.04 | -3.63% | 18,910,040 |
| Apr 29, 2026 | $182.96 | $184.00 | $178.64 | $181.62 | +0.40% | 10,921,030 |
| Apr 28, 2026 | $177.90 | $185.56 | $177.27 | $180.90 | -4.79% | 13,400,570 |
| Apr 27, 2026 | $190.97 | $192.68 | $186.78 | $190.00 | -1.81% | 11,195,780 |
| Apr 24, 2026 | $185.28 | $193.94 | $184.47 | $193.50 | +6.59% | 11,432,740 |
| Apr 23, 2026 | $182.44 | $184.46 | $178.85 | $181.54 | +0.19% | 9,285,000 |
| Apr 22, 2026 | $181.30 | $181.43 | $177.66 | $181.21 | +1.49% | 6,839,940 |
| Apr 21, 2026 | $181.40 | $182.33 | $177.24 | $178.54 | -1.11% | 6,763,640 |
| Apr 20, 2026 | $179.16 | $180.67 | $177.00 | $180.53 | +0.77% | 6,232,300 |
| Apr 17, 2026 | $177.13 | $179.18 | $174.41 | $179.14 | +3.26% | 7,253,600 |
| Apr 16, 2026 | $171.86 | $174.21 | $169.65 | $173.49 | -0.76% | 8,327,190 |
| Apr 15, 2026 | $176.60 | $177.03 | $168.05 | $174.81 | -2.66% | 11,641,620 |
| Apr 14, 2026 | $178.88 | $179.80 | $176.54 | $179.59 | +1.53% | 8,712,700 |
| Apr 13, 2026 | $173.46 | $177.18 | $172.03 | $176.88 | +1.81% | 8,302,860 |
| Apr 10, 2026 | $174.76 | $176.00 | $173.22 | $173.73 | +0.58% | 6,868,060 |
| Apr 9, 2026 | $166.99 | $173.47 | $166.92 | $172.73 | +3.28% | 9,397,560 |
| Apr 8, 2026 | $166.62 | $168.63 | $163.53 | $167.23 | +7.97% | 10,203,890 |
| Apr 7, 2026 | $152.36 | $154.89 | $150.73 | $154.89 | +0.57% | 5,273,280 |
| Apr 6, 2026 | $152.28 | $154.20 | $151.74 | $154.01 | +1.53% | 4,119,540 |
| Apr 2, 2026 | $145.42 | $152.80 | $145.10 | $151.68 | -0.20% | 6,617,390 |
| Apr 1, 2026 | $148.42 | $153.99 | $148.38 | $151.98 | +3.22% | 8,800,780 |
| Mar 31, 2026 | $141.71 | $147.64 | $140.00 | $147.24 | +6.50% | 11,080,520 |
| Mar 30, 2026 | $146.90 | $147.36 | $137.44 | $138.26 | -4.20% | 10,013,960 |
| Mar 27, 2026 | $143.66 | $147.92 | $143.53 | $144.32 | -0.55% | 8,118,360 |
| Mar 26, 2026 | $150.39 | $151.48 | $144.55 | $145.11 | -6.00% | 10,916,920 |
| Mar 25, 2026 | $157.43 | $157.60 | $153.46 | $154.38 | -1.43% | 7,694,280 |
| Mar 24, 2026 | $148.48 | $158.25 | $148.17 | $156.62 | +3.62% | 7,827,230 |
| Mar 23, 2026 | $153.35 | $157.33 | $151.03 | $151.14 | +0.85% | 11,740,810 |
| Mar 20, 2026 | $151.15 | $153.50 | $145.71 | $149.87 | -0.85% | 21,883,510 |
| Mar 19, 2026 | $143.76 | $151.80 | $142.03 | $151.15 | +1.97% | 9,999,630 |
| Mar 18, 2026 | $147.93 | $151.31 | $145.91 | $148.24 | +0.07% | 8,829,630 |
| Mar 17, 2026 | $144.67 | $148.50 | $143.49 | $148.14 | +3.00% | 8,536,280 |
| Mar 16, 2026 | $145.39 | $145.70 | $142.51 | $143.82 | +1.38% | 9,557,730 |
| Mar 13, 2026 | $141.72 | $144.59 | $140.84 | $141.86 | +0.64% | 12,718,410 |
| Mar 12, 2026 | $146.50 | $147.00 | $139.60 | $140.96 | -3.78% | 12,595,790 |
| Mar 11, 2026 | $145.90 | $149.50 | $145.40 | $146.50 | +0.83% | 8,171,700 |
| Mar 10, 2026 | $142.11 | $148.71 | $141.00 | $145.29 | +1.67% | 8,915,330 |
| Mar 9, 2026 | $132.29 | $143.52 | $132.10 | $142.91 | +6.29% | 11,206,980 |
| Mar 6, 2026 | $137.29 | $141.87 | $133.20 | $134.46 | -5.93% | 11,178,530 |
| Mar 5, 2026 | $145.33 | $147.56 | $139.00 | $142.94 | -3.15% | 10,785,050 |
| Mar 4, 2026 | $146.63 | $149.00 | $144.90 | $147.59 | +2.40% | 7,985,460 |
| Mar 3, 2026 | $147.56 | $148.75 | $142.65 | $144.14 | -6.10% | 12,672,450 |
| Mar 2, 2026 | $147.50 | $154.08 | $147.50 | $153.50 | +0.68% | 7,591,310 |
| Feb 27, 2026 | $149.70 | $153.74 | $149.05 | $152.46 | +0.02% | 11,070,610 |
| Feb 26, 2026 | $154.51 | $155.50 | $146.88 | $152.43 | -1.45% | 11,842,690 |
| Feb 25, 2026 | $154.48 | $157.73 | $154.11 | $154.67 | +2.66% | 8,761,730 |
| Feb 24, 2026 | $150.78 | $153.00 | $147.55 | $150.67 | +1.28% | 6,671,270 |
| Feb 23, 2026 | $148.99 | $151.70 | $145.60 | $148.77 | -0.56% | 8,500,730 |
| Feb 20, 2026 | $145.51 | $149.76 | $145.51 | $149.60 | +1.78% | 6,842,970 |
| Feb 19, 2026 | $145.01 | $147.47 | $144.21 | $146.99 | -0.70% | 6,260,770 |
| Feb 18, 2026 | $147.81 | $150.28 | $146.76 | $148.03 | +0.69% | 6,510,530 |
| Feb 17, 2026 | $144.55 | $148.70 | $142.77 | $147.02 | +0.41% | 6,234,320 |
| Feb 13, 2026 | $145.10 | $149.45 | $143.50 | $146.41 | +0.92% | 10,123,770 |
| Feb 12, 2026 | $147.80 | $149.51 | $143.45 | $145.09 | -1.94% | 10,513,930 |
| Feb 11, 2026 | $146.89 | $150.21 | $144.60 | $147.95 | +3.40% | 10,929,920 |
| Feb 10, 2026 | $142.41 | $144.40 | $141.20 | $143.08 | -0.65% | 8,435,590 |
| Feb 9, 2026 | $144.00 | $145.70 | $142.45 | $144.02 | -0.19% | 16,395,620 |
| Feb 6, 2026 | $137.72 | $144.93 | $137.12 | $144.30 | +8.41% | 15,714,670 |
| Feb 5, 2026 | $129.29 | $134.99 | $128.50 | $133.10 | +1.82% | 13,017,190 |
| Feb 4, 2026 | $136.52 | $137.73 | $128.50 | $130.72 | -3.56% | 15,838,060 |
| Feb 3, 2026 | $144.60 | $144.93 | $132.44 | $135.55 | -3.89% | 20,561,530 |
| Feb 2, 2026 | $140.00 | $144.03 | $140.00 | $141.05 | -1.22% | 16,038,480 |
| Jan 30, 2026 | $154.00 | $158.50 | $141.68 | $142.79 | -15.24% | 27,881,410 |
| Jan 29, 2026 | $164.29 | $169.34 | $160.82 | $168.47 | +3.53% | 15,063,940 |
| Jan 28, 2026 | $163.45 | $165.00 | $160.10 | $162.72 | +0.67% | 10,915,270 |
| Jan 27, 2026 | $156.15 | $161.82 | $155.50 | $161.63 | +4.75% | 11,742,180 |
| Jan 26, 2026 | $151.24 | $155.67 | $149.06 | $154.30 | +2.00% | 12,601,500 |
| Jan 23, 2026 | $148.42 | $151.30 | $145.18 | $151.28 | +0.85% | 10,104,840 |
| Jan 22, 2026 | $154.91 | $155.66 | $149.79 | $150.00 | -1.32% | 10,260,180 |
| Jan 21, 2026 | $150.73 | $154.13 | $148.04 | $152.00 | +2.28% | 14,999,350 |
| Jan 20, 2026 | $152.54 | $155.53 | $148.43 | $148.62 | -5.21% | 17,340,100 |
| Jan 16, 2026 | $157.47 | $158.13 | $153.51 | $156.78 | +1.48% | 15,320,270 |
| Jan 15, 2026 | $153.80 | $157.15 | $152.50 | $154.50 | +7.70% | 16,576,140 |
| Jan 14, 2026 | $143.09 | $143.48 | $139.61 | $143.45 | -0.51% | 8,965,470 |
| Jan 13, 2026 | $146.10 | $146.99 | $143.32 | $144.18 | +0.96% | 9,968,490 |
| Jan 12, 2026 | $138.66 | $143.23 | $138.66 | $142.82 | +2.01% | 8,558,310 |
| Jan 9, 2026 | $135.74 | $140.45 | $133.60 | $140.00 | +5.69% | 11,024,280 |
| Jan 8, 2026 | $135.13 | $135.38 | $130.92 | $132.46 | -2.58% | 9,488,390 |
| Jan 7, 2026 | $136.91 | $138.00 | $135.25 | $135.97 | -2.53% | 9,044,940 |
| Jan 6, 2026 | $136.93 | $140.70 | $136.53 | $139.50 | +3.15% | 11,416,030 |
| Jan 5, 2026 | $131.00 | $137.19 | $130.40 | $135.25 | +6.12% | 13,198,620 |
| Jan 2, 2026 | $125.97 | $128.40 | $125.06 | $127.45 | +4.89% | 8,321,900 |
| Dec 31, 2025 | $124.37 | $125.09 | $121.41 | $121.51 | -2.30% | 6,080,430 |
| Dec 30, 2025 | $126.68 | $126.76 | $124.12 | $124.37 | -1.33% | 3,842,580 |
| Dec 29, 2025 | $127.31 | $128.61 | $125.67 | $126.04 | -1.50% | 6,417,710 |
| Dec 26, 2025 | $128.30 | $128.68 | $127.53 | $127.96 | +0.20% | 3,375,060 |
| Dec 24, 2025 | $126.94 | $127.92 | $126.50 | $127.70 | +0.65% | 2,102,920 |
| Dec 23, 2025 | $125.90 | $127.21 | $125.75 | $126.88 | +0.24% | 6,007,930 |
| Dec 22, 2025 | $127.64 | $127.80 | $124.99 | $126.57 | +1.60% | 6,044,950 |
| Dec 19, 2025 | $124.00 | $126.36 | $123.96 | $124.57 | +1.90% | 21,564,630 |
| Dec 18, 2025 | $122.30 | $123.30 | $121.10 | $122.24 | +4.30% | 10,564,690 |
| Dec 17, 2025 | $122.30 | $123.36 | $116.94 | $117.20 | -4.20% | 9,138,310 |
| Dec 16, 2025 | $123.70 | $124.00 | $120.74 | $122.34 | -0.14% | 7,356,700 |
| Dec 15, 2025 | $122.90 | $125.50 | $121.53 | $122.51 | +2.61% | 12,586,010 |
| Dec 12, 2025 | $123.01 | $123.97 | $118.52 | $119.39 | -4.19% | 11,439,310 |
| Dec 11, 2025 | $122.93 | $125.07 | $119.10 | $124.62 | +0.59% | 9,223,260 |
| Dec 10, 2025 | $123.09 | $125.37 | $122.08 | $123.89 | +1.09% | 7,120,060 |
| Dec 9, 2025 | $121.57 | $123.36 | $121.16 | $122.56 | +0.08% | 7,827,410 |
| Dec 8, 2025 | $123.26 | $124.24 | $121.92 | $122.46 | +0.83% | 8,198,960 |
| Dec 5, 2025 | $122.40 | $124.00 | $121.23 | $121.45 | +0.53% | 6,819,280 |
| Dec 4, 2025 | $120.26 | $121.71 | $119.78 | $120.81 | -0.30% | 7,033,090 |
| Dec 3, 2025 | $118.60 | $121.60 | $116.62 | $121.18 | +1.84% | 8,103,900 |
| Dec 2, 2025 | $117.05 | $119.79 | $116.37 | $118.99 | +2.82% | 9,535,470 |
| Dec 1, 2025 | $116.50 | $117.57 | $115.12 | $115.72 | -1.56% | 6,092,760 |
| Nov 28, 2025 | $116.89 | $117.60 | $115.10 | $117.55 | +1.41% | 3,892,650 |
| Nov 26, 2025 | $115.78 | $116.73 | $114.49 | $115.91 | +1.15% | 11,258,770 |
| Nov 25, 2025 | $113.02 | $114.85 | $110.74 | $114.59 | +0.81% | 9,442,530 |
| Nov 24, 2025 | $110.49 | $114.80 | $110.30 | $113.67 | +3.61% | 15,795,840 |
| Nov 21, 2025 | $109.70 | $111.08 | $107.20 | $109.71 | -0.48% | 14,386,560 |
| Nov 20, 2025 | $118.80 | $120.15 | $109.76 | $110.25 | -5.57% | 11,719,220 |
| Nov 19, 2025 | $113.19 | $117.74 | $112.95 | $116.75 | +3.95% | 9,600,470 |
| Nov 18, 2025 | $111.44 | $114.04 | $109.79 | $112.31 | -0.94% | 11,522,320 |
| Nov 17, 2025 | $113.99 | $115.58 | $111.81 | $113.37 | -0.05% | 13,267,130 |
| Nov 14, 2025 | $113.55 | $117.52 | $112.71 | $113.43 | -2.36% | 14,445,740 |
| Nov 13, 2025 | $118.72 | $119.28 | $114.87 | $116.17 | -3.11% | 12,034,590 |
| Nov 12, 2025 | $120.81 | $120.99 | $119.28 | $119.90 | +0.68% | 8,246,130 |
| Nov 11, 2025 | $120.31 | $121.07 | $118.50 | $119.09 | -2.22% | 9,119,650 |
| Nov 10, 2025 | $122.09 | $122.68 | $120.17 | $121.80 | +2.06% | 9,484,270 |
| Nov 7, 2025 | $119.99 | $120.83 | $116.01 | $119.34 | -1.08% | 11,423,700 |
| Nov 6, 2025 | $122.31 | $122.31 | $119.18 | $120.64 | -1.69% | 11,791,210 |
| Nov 5, 2025 | $120.36 | $124.31 | $120.15 | $122.71 | +2.82% | 9,013,800 |
| Nov 4, 2025 | $119.82 | $122.95 | $119.14 | $119.35 | -2.10% | 12,014,200 |
| Nov 3, 2025 | $121.61 | $123.11 | $120.75 | $121.91 | +0.86% | 9,057,420 |
| Oct 31, 2025 | $122.38 | $124.04 | $120.09 | $120.87 | -0.47% | 8,852,120 |
| Oct 30, 2025 | $123.42 | $128.45 | $117.28 | $121.44 | -1.69% | 20,376,550 |
| Oct 29, 2025 | $122.60 | $125.96 | $122.45 | $123.53 | +2.42% | 14,634,630 |
| Oct 28, 2025 | $120.67 | $120.97 | $119.58 | $120.60 | -0.75% | 6,656,750 |
| Oct 27, 2025 | $120.00 | $122.12 | $120.00 | $121.51 | +2.73% | 9,712,740 |
| Oct 24, 2025 | $116.60 | $119.13 | $116.06 | $118.28 | +2.06% | 8,254,880 |
| Oct 23, 2025 | $110.67 | $116.31 | $110.67 | $115.90 | +4.01% | 9,467,950 |
| Oct 22, 2025 | $114.74 | $114.74 | $109.03 | $111.43 | -2.89% | 13,617,650 |
| Oct 21, 2025 | $114.08 | $115.63 | $113.86 | $114.74 | -0.47% | 7,448,290 |
| Oct 20, 2025 | $113.01 | $116.12 | $112.65 | $115.29 | – | 10,786,520 |
Seasonality
KLAC 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 | 6.4% | 2.9% | 1.0% | 1.8% | 6.6% | 8.7% | 2.6% | -0.5% | 1.0% | -0.2% | 8.2% | 1.5% |
| Months up | 8 of 10 | 6 of 10 | 6 of 10 | 5 of 10 | 9 of 10 | 7 of 10 | 7 of 10 | 3 of 10 | 4 of 10 | 7 of 10 | 5 of 9 | 6 of 9 |
| 2026 | 17.5% | 6.9% | -3.4% | 18.9% | 9.9% | 57.0% | -39.4% | -3.9% | 11.1% | -19.0% | ||
| 2025 | 17.2% | -3.8% | -4.1% | 3.4% | 8.0% | 18.3% | -1.9% | -0.6% | 23.7% | 12.1% | -2.6% | 3.4% |
| 2024 | 2.2% | 15.1% | 2.4% | -1.3% | 10.4% | 8.6% | -0.2% | -0.3% | -5.5% | -14.0% | -2.6% | -2.6% |
| 2023 | 4.1% | -3.0% | 5.2% | -3.2% | 15.0% | 9.5% | 6.0% | -2.1% | -8.6% | 2.4% | 16.3% | 6.7% |
| 2022 | -9.5% | -10.2% | 5.0% | -12.8% | 14.7% | -12.5% | 20.2% | -10.0% | -12.1% | 4.6% | 24.7% | -4.1% |
| 2021 | 8.2% | 11.4% | 6.2% | -4.6% | 0.8% | 2.3% | 7.4% | -2.0% | -1.6% | 11.4% | 9.8% | 5.4% |
| 2020 | -7.0% | -6.8% | -6.5% | 14.2% | 7.8% | 10.5% | 2.8% | 3.1% | -5.6% | 1.8% | 28.3% | 2.8% |
| 2019 | 19.1% | 9.1% | 3.4% | 6.8% | -18.6% | 14.7% | 15.3% | 9.1% | 7.8% | 6.0% | -2.6% | 8.7% |
| 2018 | 4.5% | 3.8% | -3.8% | -6.7% | 12.1% | -9.4% | 14.5% | -0.4% | -12.5% | -10.0% | 8.6% | -9.2% |
| 2017 | 8.2% | 6.6% | 5.5% | 3.3% | 6.5% | -12.0% | 1.2% | 1.8% | 13.1% | 2.7% | -5.6% | 2.8% |