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Contract OI history

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Dec 18, 2026 EXPIRATION

KLAC $156.00 Put

KLAC261218P00156000

Latest saved OI215Oct 23, 2026
Last change-9vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $156.00 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. 2241120 2026-10-09: 192 OI2026-10-13: 192 OI2026-10-14: 192 OI2026-10-15: 192 OI2026-10-16: 193 OI2026-10-21: 224 OI2026-10-23: 215 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, 2026Viewing215-9
Oct 21, 2026224+31
Oct 16, 2026193+1
Oct 15, 20261920
Oct 14, 20261920
Oct 13, 20261920
Oct 09, 2026192No prior observation