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Contract OI history

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Oct 30, 2026 EXPIRATION

KLAC $155.00 Put

KLAC261030P00155000

Latest saved OI104Oct 23, 2026
Last change+5vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $155.00 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. 104520 2026-10-09: 93 OI2026-10-13: 99 OI2026-10-14: 99 OI2026-10-15: 100 OI2026-10-16: 101 OI2026-10-21: 99 OI2026-10-23: 104 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, 2026Viewing104+5
Oct 21, 202699-2
Oct 16, 2026101+1
Oct 15, 2026100+1
Oct 14, 2026990
Oct 13, 202699+6
Oct 09, 202693No prior observation