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Why is $KLAC stock down today?

KLA Corporation Common Stock · OPTICAL INSTRUMENTS & LENSES

Why is $KLAC down today?

The likely driver

KLA CORP: FY2026 results, year to Jun 30, 2026
KLA CORP: FY2026 results, year to Jun 30, 2026
SEC filing · Aug 6
Price
$163.44
Move today
-2.0%
Volume vs avg
0.0x
Scanner alerts today
6
Flagged in 30 days
180
Market cap
$211.3B
Prev close
$166.79
Avg volume
10.2M

Today’s scanner timeline

  • 4:06 PMBig % mover alert
  • 3:14 PMUnusual volume (RVOL) alert
  • 9:08 AMUnusual volume (RVOL) alert
  • 7:18 AMUnusual volume (RVOL) alert
  • 4:38 AMBig % mover alert
  • 4:37 AMUnusual volume (RVOL) alert

Unusual-volume alerts often fire before the news is widely reported. This is when our scanner first flagged KLAC today.

Earlier scanner activity on KLAC

  • Oct 20Unusual volume (RVOL) alert
  • Oct 20Unusual volume (RVOL) alert
  • Oct 20Big % mover alert
  • Oct 20Unusual volume (RVOL) alert
  • Oct 20Unusual volume (RVOL) alert
  • Oct 20Unusual volume (RVOL) alert
  • Oct 20Unusual volume (RVOL) alert
  • Oct 20Unusual volume (RVOL) alert
  • Oct 20Unusual volume (RVOL) alert
  • Oct 20Big % mover alert
  • Oct 20Big % mover alert
  • Oct 20Big % mover alert

Prior sessions in the last 30 days. A name our scanner keeps flagging is behaving differently from the rest of the market, even on a quiet day.

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Other stocks moving today

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Move and volume are based on the latest market data and refresh live on this page. Scanner alerts are our own real-time unusual-volume signals. This is research, not investment advice.