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Contract OI history

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Nov 20, 2026 EXPIRATION

KLAC $150.00 Put

KLAC261120P00150000

Latest saved OI715Oct 23, 2026
Last change+89vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $150.00 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. 7153570 2026-10-09: 454 OI2026-10-13: 482 OI2026-10-14: 482 OI2026-10-15: 517 OI2026-10-16: 587 OI2026-10-21: 626 OI2026-10-23: 715 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, 2026Viewing715+89
Oct 21, 2026626+39
Oct 16, 2026587+70
Oct 15, 2026517+35
Oct 14, 20264820
Oct 13, 2026482+28
Oct 09, 2026454No prior observation