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Contract OI history

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Oct 23, 2026 EXPIRATION

KLAC $170.00 Put

KLAC261023P00170000

Latest saved OI17Oct 23, 2026
Last change-417vs 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. 4342170 2026-10-09: 123 OI2026-10-13: 377 OI2026-10-14: 377 OI2026-10-15: 389 OI2026-10-16: 428 OI2026-10-21: 434 OI2026-10-23: 17 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, 2026Viewing17-417
Oct 21, 2026434+6
Oct 16, 2026428+39
Oct 15, 2026389+12
Oct 14, 20263770
Oct 13, 2026377+254
Oct 09, 2026123No prior observation