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Contract OI history

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Jun 17, 2027 EXPIRATION

KLAC $180.00 Put

KLAC270617P00180000

Latest saved OI417Oct 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 $180.00 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. 4172080 2026-10-09: 415 OI2026-10-13: 416 OI2026-10-14: 416 OI2026-10-15: 416 OI2026-10-16: 417 OI2026-10-21: 417 OI2026-10-23: 417 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, 2026Viewing4170
Oct 21, 20264170
Oct 16, 2026417+1
Oct 15, 20264160
Oct 14, 20264160
Oct 13, 2026416+1
Oct 09, 2026415No prior observation