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Contract OI history

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Dec 18, 2026 EXPIRATION

OXY $27.50 Put

OXY261218P00027500

Latest saved OI398Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
OXY $27.50 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 3981990 2026-10-02: 390 OI2026-10-05: 390 OI2026-10-06: 390 OI2026-10-07: 390 OI2026-10-08: 390 OI2026-10-09: 390 OI2026-10-13: 390 OI2026-10-14: 390 OI2026-10-15: 390 OI2026-10-16: 390 OI2026-10-21: 398 OI2026-10-23: 398 OI Oct 02, 2026Oct 23, 2026

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

OXY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing3980
Oct 21, 2026398+8
Oct 16, 20263900
Oct 15, 20263900
Oct 14, 20263900
Oct 13, 20263900
Oct 09, 20263900
Oct 08, 20263900
Oct 07, 20263900
Oct 06, 20263900
Oct 05, 20263900
Oct 02, 2026390No prior observation