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Contract OI history

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Dec 18, 2026 EXPIRATION

APA $42.50 Put

APA261218P00042500

Latest saved OI272Oct 23, 2026
Last change+21vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
APA $42.50 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. 2731360 2026-10-09: 259 OI2026-10-13: 257 OI2026-10-14: 273 OI2026-10-15: 273 OI2026-10-16: 273 OI2026-10-21: 251 OI2026-10-23: 272 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, 2026Viewing272+21
Oct 21, 2026251-22
Oct 16, 20262730
Oct 15, 20262730
Oct 14, 2026273+16
Oct 13, 2026257-2
Oct 09, 2026259No prior observation