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Contract OI history

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Jan 21, 2028 EXPIRATION

OXY $37.50 Put

OXY280121P00037500

Latest saved OI160Oct 23, 2026
Last change+4vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
OXY $37.50 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. 160800 2026-10-02: 155 OI2026-10-05: 155 OI2026-10-06: 155 OI2026-10-07: 155 OI2026-10-08: 155 OI2026-10-09: 155 OI2026-10-13: 155 OI2026-10-14: 155 OI2026-10-15: 155 OI2026-10-16: 156 OI2026-10-21: 156 OI2026-10-23: 160 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, 2026Viewing160+4
Oct 21, 20261560
Oct 16, 2026156+1
Oct 15, 20261550
Oct 14, 20261550
Oct 13, 20261550
Oct 09, 20261550
Oct 08, 20261550
Oct 07, 20261550
Oct 06, 20261550
Oct 05, 20261550
Oct 02, 2026155No prior observation