• Oct 26, 2026

  $149.21+2.47%

  The shares rose 2.47% on a day when the broad market, measured by the S&P 500 ETF (SPY), rose 0.71% [1]. The move came alongside a broad-market gain, though the company's rise was larger than the market's.

  • 1Broad market

• Oct 23, 2026

  $145.61-1.50%

• Oct 22, 2026

  $147.83-9.55%

  KLAC closed down 9.55%, while the S&P 500 ETF (SPY) moved -1.18% the same session, so the broad market did not share the size of the drop [1]. Volume was 2.2x the trailing 20-session average, and the session traded between 146.54 and 155.04 [2].

  • 1Broad market
  • 2Market data

• Oct 21, 2026

  $163.43+1.04%

• Oct 20, 2026

  $161.74-2.80%

  KLAC fell 2.80% while the broad market, as measured by the S&P 500 ETF (SPY), rose 0.34% [1]. The decline was therefore not shared by the broad market [1].

  • 1Broad market

• Oct 19, 2026

  $166.40+0.40%

• Oct 16, 2026

  $165.74-5.00%

  The broad market, measured by the S&P 500 ETF (SPY), fell 1.11% on the session, while KLAC fell 5.00% [1]. The decline was therefore much larger than the broad-market move, which means it was only partly shared by the market [1].

  • 1Broad market

Closing prices for KLAC. Summaries describe past sessions only and are not advice, a forecast or a recommendation.

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