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Contract OI history

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Jan 21, 2028 EXPIRATION

WES $55.00 Call

WES280121C00055000

Latest saved OI435Oct 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 $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. 4352170 2026-10-02: 411 OI2026-10-05: 411 OI2026-10-06: 431 OI2026-10-07: 431 OI2026-10-08: 431 OI2026-10-09: 431 OI2026-10-13: 431 OI2026-10-14: 431 OI2026-10-16: 435 OI2026-10-20: 435 OI2026-10-23: 435 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, 2026Viewing4350
Oct 20, 20264350
Oct 16, 2026435+4
Oct 14, 20264310
Oct 13, 20264310
Oct 09, 20264310
Oct 08, 20264310
Oct 07, 20264310
Oct 06, 2026431+20
Oct 05, 20264110
Oct 02, 2026411No prior observation