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Contract OI history

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Dec 18, 2026 EXPIRATION

KLAC $148.00 Put

KLAC261218P00148000

Latest saved OI187Oct 23, 2026
Last change+7vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $148.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 187930 2026-10-09: 165 OI2026-10-13: 166 OI2026-10-14: 166 OI2026-10-15: 167 OI2026-10-16: 167 OI2026-10-21: 180 OI2026-10-23: 187 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

KLAC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing187+7
Oct 21, 2026180+13
Oct 16, 20261670
Oct 15, 2026167+1
Oct 14, 20261660
Oct 13, 2026166+1
Oct 09, 2026165No prior observation