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KLA market cap KLAC

Share price times shares outstanding: what the whole company sells for, since 2010.

Today, Oct 23, 2026
$190.2B
Highest close in our data
$339.1B
Jun 2026

KLA is worth $190.2B at the close on Oct 23, 2026, at $145.61 a share.

That is up 22% over the last year and up 237% over five years.

Its highest close in our data was $339.1B in Jun 2026.

Market cap over time

Open the interactive chart, with overlays and comparisons

Year by year

YearEnd of yearLowHighChange
2026 so far$190.2B$167.5B$339.1B+13%
2025$168.1B$76.6B$168.1B+95%
2024$86.2B$74B$115.5B+9%
2023$79B$50.9B$79.5B+48%
2022$53.4B$37.4B$67.5B−18%
2021$65.2B$43.3B$65.2B+63%
2020$40B$17.9B$40.7B+42%
2019$28.2B$14B$28.2B+108%
2018$13.6B$13.1B$19B−18%
2017$16.5B$12.4B$17.1B+34%
2016$12.3B$9.9B$12.9B+14%
2015$10.8B$7.5B$11.6B−8%
2014$11.8B$10.2B$13.4B+11%
2013$10.7B$8.2B$10.8B+36%
2012$7.8B$7.4B$9.1B−3%
2011$8B$5.6B$8.6B+25%
2010$6.4B$6.2B$6.7Bn/a

Against its peers

Companies in Semiconductors nearest KLA's size, closest first, today.

What the market cap tells you

Share price times shares outstanding: what the whole company sells for today.

Size, not quality. Large caps move slower and are covered more. That is all it tells you.

More on KLA

Valuation data, not investment advice. Prices as of . Reported figures come from the company's filings with the SEC.