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Contract OI history

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Jan 15, 2027 EXPIRATION

WES $55.00 Call

WES270115C00055000

Latest saved OI236Oct 23, 2026
Last change-7vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WES $55.00 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. 2581290 2026-10-02: 258 OI2026-10-05: 258 OI2026-10-06: 258 OI2026-10-07: 258 OI2026-10-08: 258 OI2026-10-09: 258 OI2026-10-13: 258 OI2026-10-14: 258 OI2026-10-16: 243 OI2026-10-20: 243 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, 2026Viewing236-7
Oct 20, 20262430
Oct 16, 2026243-15
Oct 14, 20262580
Oct 13, 20262580
Oct 09, 20262580
Oct 08, 20262580
Oct 07, 20262580
Oct 06, 20262580
Oct 05, 20262580
Oct 02, 2026258No prior observation