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Contract OI history

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Nov 20, 2026 EXPIRATION

WES $44.00 Put

WES261120P00044000

Latest saved OI236Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WES $44.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2361180 2026-10-02: 182 OI2026-10-05: 182 OI2026-10-06: 187 OI2026-10-07: 187 OI2026-10-08: 176 OI2026-10-09: 176 OI2026-10-13: 186 OI2026-10-14: 186 OI2026-10-16: 201 OI2026-10-20: 236 OI2026-10-23: 236 OI Oct 02, 2026Oct 23, 2026

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

WES contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing2360
Oct 20, 2026236+35
Oct 16, 2026201+15
Oct 14, 20261860
Oct 13, 2026186+10
Oct 09, 20261760
Oct 08, 2026176-11
Oct 07, 20261870
Oct 06, 2026187+5
Oct 05, 20261820
Oct 02, 2026182No prior observation