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Contract OI history

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Jun 17, 2027 EXPIRATION

KLAC $135.00 Put

KLAC270617P00135000

Latest saved OI305Oct 23, 2026
Last change+229vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $135.00 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. 3051520 2026-10-09: 68 OI2026-10-13: 68 OI2026-10-14: 68 OI2026-10-15: 68 OI2026-10-16: 73 OI2026-10-21: 76 OI2026-10-23: 305 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, 2026Viewing305+229
Oct 21, 202676+3
Oct 16, 202673+5
Oct 15, 2026680
Oct 14, 2026680
Oct 13, 2026680
Oct 09, 202668No prior observation