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Contract OI history

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Jan 15, 2027 EXPIRATION

KLAC $78.00 Put

KLAC270115P00078000

Latest saved OI381Oct 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 $78.00 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. 4002000 2026-10-09: 400 OI2026-10-13: 400 OI2026-10-14: 400 OI2026-10-15: 400 OI2026-10-16: 381 OI2026-10-21: 381 OI2026-10-23: 381 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, 2026Viewing3810
Oct 21, 20263810
Oct 16, 2026381-19
Oct 15, 20264000
Oct 14, 20264000
Oct 13, 20264000
Oct 09, 2026400No prior observation