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Contract OI history

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Dec 18, 2026 EXPIRATION

APA $40.00 Put

APA261218P00040000

Latest saved OI594Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
APA $40.00 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. 5992990 2026-10-09: 599 OI2026-10-13: 596 OI2026-10-14: 588 OI2026-10-15: 588 OI2026-10-16: 589 OI2026-10-21: 593 OI2026-10-23: 594 OI Oct 09, 2026Oct 23, 2026

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

APA contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing594+1
Oct 21, 2026593+4
Oct 16, 2026589+1
Oct 15, 20265880
Oct 14, 2026588-8
Oct 13, 2026596-3
Oct 09, 2026599No prior observation