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Contract OI history

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Mar 19, 2027 EXPIRATION

WMB $75.00 Call

WMB270319C00075000

Latest saved OI766Oct 23, 2026
Last change+13vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WMB $75.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 7663830 2026-10-02: 552 OI2026-10-05: 553 OI2026-10-06: 555 OI2026-10-07: 562 OI2026-10-08: 563 OI2026-10-09: 569 OI2026-10-12: 569 OI2026-10-14: 569 OI2026-10-15: 585 OI2026-10-16: 748 OI2026-10-21: 753 OI2026-10-23: 766 OI Oct 02, 2026Oct 23, 2026

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

WMB contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026766+13
Oct 21, 2026Viewing753+5
Oct 16, 2026748+163
Oct 15, 2026585+16
Oct 14, 20265690
Oct 12, 20265690
Oct 09, 2026569+6
Oct 08, 2026563+1
Oct 07, 2026562+7
Oct 06, 2026555+2
Oct 05, 2026553+1
Oct 02, 2026552No prior observation