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Contract OI history

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Nov 20, 2026 EXPIRATION

KLAC $180.00 Put

KLAC261120P00180000

Latest saved OI446Oct 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. 4712350 2026-10-09: 447 OI2026-10-13: 429 OI2026-10-14: 429 OI2026-10-15: 468 OI2026-10-16: 471 OI2026-10-21: 446 OI2026-10-23: 446 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, 2026Viewing4460
Oct 21, 2026446-25
Oct 16, 2026471+3
Oct 15, 2026468+39
Oct 14, 20264290
Oct 13, 2026429-18
Oct 09, 2026447No prior observation