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Contract OI history

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Nov 20, 2026 EXPIRATION

KLAC $140.00 Put

KLAC261120P00140000

Latest saved OI716Oct 23, 2026
Last change+48vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $140.00 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. 7163580 2026-10-09: 584 OI2026-10-13: 593 OI2026-10-14: 593 OI2026-10-15: 596 OI2026-10-16: 573 OI2026-10-21: 668 OI2026-10-23: 716 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, 2026Viewing716+48
Oct 21, 2026668+95
Oct 16, 2026573-23
Oct 15, 2026596+3
Oct 14, 20265930
Oct 13, 2026593+9
Oct 09, 2026584No prior observation