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Contract OI history

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Jun 17, 2027 EXPIRATION

KLAC $170.00 Put

KLAC270617P00170000

Latest saved OI708Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $170.00 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. 7083540 2026-10-09: 657 OI2026-10-13: 695 OI2026-10-14: 695 OI2026-10-15: 703 OI2026-10-16: 707 OI2026-10-21: 707 OI2026-10-23: 708 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, 2026Viewing708+1
Oct 21, 20267070
Oct 16, 2026707+4
Oct 15, 2026703+8
Oct 14, 20266950
Oct 13, 2026695+38
Oct 09, 2026657No prior observation