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Contract OI history

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Jan 21, 2028 EXPIRATION

KLAC $390.00 Call

KLAC280121C00390000

Latest saved OI316Oct 23, 2026
Last change+5vs 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. 3161580 2026-10-09: 308 OI2026-10-13: 308 OI2026-10-14: 308 OI2026-10-15: 308 OI2026-10-16: 308 OI2026-10-21: 311 OI2026-10-23: 316 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, 2026Viewing316+5
Oct 21, 2026311+3
Oct 16, 20263080
Oct 15, 20263080
Oct 14, 20263080
Oct 13, 20263080
Oct 09, 2026308No prior observation