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Contract OI history

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Jan 21, 2028 EXPIRATION

KLAC $152.00 Put

KLAC280121P00152000

Latest saved OI138Oct 23, 2026
Last change+19vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $152.00 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. 138690 2026-10-09: 115 OI2026-10-13: 115 OI2026-10-14: 115 OI2026-10-15: 115 OI2026-10-16: 115 OI2026-10-21: 119 OI2026-10-23: 138 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, 2026Viewing138+19
Oct 21, 2026119+4
Oct 16, 20261150
Oct 15, 20261150
Oct 14, 20261150
Oct 13, 20261150
Oct 09, 2026115No prior observation