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Contract OI history

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Jan 15, 2027 EXPIRATION

KLAC $142.00 Put

KLAC270115P00142000

Latest saved OI343Oct 23, 2026
Last change+22vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $142.00 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. 3431710 2026-10-09: 308 OI2026-10-13: 312 OI2026-10-14: 312 OI2026-10-15: 312 OI2026-10-16: 319 OI2026-10-21: 321 OI2026-10-23: 343 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, 2026Viewing343+22
Oct 21, 2026321+2
Oct 16, 2026319+7
Oct 15, 20263120
Oct 14, 20263120
Oct 13, 2026312+4
Oct 09, 2026308No prior observation