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Contract OI history

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Mar 19, 2027 EXPIRATION

KLAC $390.00 Call

KLAC270319C00390000

Latest saved OI252Oct 23, 2026
Last change-20vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $390.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 2811400 2026-10-09: 281 OI2026-10-13: 281 OI2026-10-14: 281 OI2026-10-15: 280 OI2026-10-16: 280 OI2026-10-21: 272 OI2026-10-23: 252 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, 2026Viewing252-20
Oct 21, 2026272-8
Oct 16, 20262800
Oct 15, 2026280-1
Oct 14, 20262810
Oct 13, 20262810
Oct 09, 2026281No prior observation