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Contract OI history

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Dec 18, 2026 EXPIRATION

PLAB $40.00 Put

PLAB261218P00040000

Latest saved OI545Oct 23, 2026
Last change-10vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
PLAB $40.00 put open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 5592790 2026-10-08: 549 OI2026-10-09: 549 OI2026-10-13: 549 OI2026-10-14: 559 OI2026-10-16: 559 OI2026-10-20: 555 OI2026-10-23: 545 OI Oct 08, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

PLAB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing545-10
Oct 20, 2026555-4
Oct 16, 20265590
Oct 14, 2026559+10
Oct 13, 20265490
Oct 09, 20265490
Oct 08, 2026549No prior observation