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Contract OI history

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Jan 19, 2029 EXPIRATION

KLAC $100.00 Put

KLAC290119P00100000

Latest saved OI12Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $100.00 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. 1260 2026-10-09: 8 OI2026-10-13: 8 OI2026-10-14: 8 OI2026-10-15: 8 OI2026-10-16: 8 OI2026-10-21: 11 OI2026-10-23: 12 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, 2026Viewing12+1
Oct 21, 202611+3
Oct 16, 202680
Oct 15, 202680
Oct 14, 202680
Oct 13, 202680
Oct 09, 20268No prior observation