KLAC Stock Posts

11/5/2026 11:48:36 AM

Large Increase in Open Interest

KLAC Kla135.34-14.45 (-9.7%)

The open interest (OI) on the 19-Feb-27 200.00 strike increased by 197 call contracts and 26,001 puts. The total OI for the expiration was increased by 27,156. View Open Interest

11/4/2026 11:17:59 AM

Unusual Option Volume

KLAC Kla151.26-4.94 (-3.2%)

Kla trades 51,417 contracts.

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10/30/2026 9:54:16 AM

Unusual Option Volume

KLAC Kla161.26-6.17 (-3.7%)

Kla trades 5,719 contracts.

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10/29/2026 10:50:26 AM

Unusual Option Volume

KLAC Kla171.26+12.49 (+7.9%)

Kla trades 10,844 contracts. News: KLA Corporation Reports Fiscal 2027 First Quarter Results

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10/28/2026 11:39:15 PM

KLAC #Kla stock increases 3.9% after hours.

After Hours Gainer

KLAC Kla158.77+5.11+3.3%

After Hours:165.04+6.27 (+4.0%)

KLA Corporation Reports Fiscal 2027 First Quarter Results

PRNewswireWed, 28-Oct 4:06 PM

10/28/2026 11:17:30 AM

Unusual Option Volume

KLAC Kla157.67+4.01 (+2.6%)

Kla trades 13,946 contracts. KLAC will report earnings today after the market closes.

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