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Contract OI history

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Jun 17, 2027 EXPIRATION

KLAC $175.00 Put

KLAC270617P00175000

Latest saved OI714Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $175.00 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. 7143570 2026-10-09: 709 OI2026-10-13: 709 OI2026-10-14: 709 OI2026-10-15: 710 OI2026-10-16: 710 OI2026-10-21: 714 OI2026-10-23: 714 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, 2026Viewing7140
Oct 21, 2026714+4
Oct 16, 20267100
Oct 15, 2026710+1
Oct 14, 20267090
Oct 13, 20267090
Oct 09, 2026709No prior observation