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Contract OI history

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Dec 18, 2026 EXPIRATION

KLAC $150.00 Put

KLAC261218P00150000

Latest saved OI515Oct 23, 2026
Last change+101vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $150.00 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. 5152570 2026-10-09: 369 OI2026-10-13: 391 OI2026-10-14: 391 OI2026-10-15: 418 OI2026-10-16: 417 OI2026-10-21: 414 OI2026-10-23: 515 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, 2026Viewing515+101
Oct 21, 2026414-3
Oct 16, 2026417-1
Oct 15, 2026418+27
Oct 14, 20263910
Oct 13, 2026391+22
Oct 09, 2026369No prior observation