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Contract OI history

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Dec 18, 2026 EXPIRATION

KLAC $136.00 Put

KLAC261218P00136000

Latest saved OI497Oct 23, 2026
Last change-66vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $136.00 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. 5642820 2026-10-09: 564 OI2026-10-13: 563 OI2026-10-14: 563 OI2026-10-15: 563 OI2026-10-16: 563 OI2026-10-21: 563 OI2026-10-23: 497 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, 2026Viewing497-66
Oct 21, 20265630
Oct 16, 20265630
Oct 15, 20265630
Oct 14, 20265630
Oct 13, 2026563-1
Oct 09, 2026564No prior observation