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Contract OI history

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Jun 17, 2027 EXPIRATION

KLAC $190.00 Put

KLAC270617P00190000

Latest saved OI221Oct 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 $190.00 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. 2221110 2026-10-09: 222 OI2026-10-13: 221 OI2026-10-14: 221 OI2026-10-15: 221 OI2026-10-16: 221 OI2026-10-21: 221 OI2026-10-23: 221 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, 2026Viewing2210
Oct 21, 20262210
Oct 16, 20262210
Oct 15, 20262210
Oct 14, 20262210
Oct 13, 2026221-1
Oct 09, 2026222No prior observation