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Contract OI history

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Jan 21, 2028 EXPIRATION

KLAC $120.00 Put

KLAC280121P00120000

Latest saved OI359Oct 23, 2026
Last change+12vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
KLAC $120.00 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. 3591790 2026-10-09: 350 OI2026-10-13: 350 OI2026-10-14: 350 OI2026-10-15: 345 OI2026-10-16: 346 OI2026-10-21: 347 OI2026-10-23: 359 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, 2026Viewing359+12
Oct 21, 2026347+1
Oct 16, 2026346+1
Oct 15, 2026345-5
Oct 14, 20263500
Oct 13, 20263500
Oct 09, 2026350No prior observation