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Contract OI history

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Mar 19, 2027 EXPIRATION

KLAC $150.00 Put

KLAC270319P00150000

Latest saved OI1,692Oct 23, 2026
Last change+26vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $150.00 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. 1,6928460 2026-10-09: 1,653 OI2026-10-13: 1,662 OI2026-10-14: 1,662 OI2026-10-15: 1,662 OI2026-10-16: 1,666 OI2026-10-21: 1,666 OI2026-10-23: 1,692 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, 2026Viewing1,692+26
Oct 21, 20261,6660
Oct 16, 20261,666+4
Oct 15, 20261,6620
Oct 14, 20261,6620
Oct 13, 20261,662+9
Oct 09, 20261,653No prior observation