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Contract OI history

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Mar 19, 2027 EXPIRATION

KLAC $90.00 Put

KLAC270319P00090000

Latest saved OI84Oct 23, 2026
Last change+24vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $90.00 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. 84420 2026-10-09: 19 OI2026-10-13: 19 OI2026-10-14: 19 OI2026-10-15: 19 OI2026-10-16: 25 OI2026-10-21: 60 OI2026-10-23: 84 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, 2026Viewing84+24
Oct 21, 202660+35
Oct 16, 202625+6
Oct 15, 2026190
Oct 14, 2026190
Oct 13, 2026190
Oct 09, 202619No prior observation