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Contract OI history

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Nov 20, 2026 EXPIRATION

WES $50.00 Call

WES261120C00050000

Latest saved OI1,738Oct 23, 2026
Last change-25vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WES $50.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,7688840 2026-10-02: 1,706 OI2026-10-05: 1,707 OI2026-10-06: 1,684 OI2026-10-07: 1,698 OI2026-10-08: 1,766 OI2026-10-09: 1,766 OI2026-10-13: 1,768 OI2026-10-14: 1,768 OI2026-10-16: 1,768 OI2026-10-20: 1,763 OI2026-10-23: 1,738 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, 2026Viewing1,738-25
Oct 20, 20261,763-5
Oct 16, 20261,7680
Oct 14, 20261,7680
Oct 13, 20261,768+2
Oct 09, 20261,7660
Oct 08, 20261,766+68
Oct 07, 20261,698+14
Oct 06, 20261,684-23
Oct 05, 20261,707+1
Oct 02, 20261,706No prior observation