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Contract OI history

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Mar 19, 2027 EXPIRATION

WMB $70.00 Put

WMB270319P00070000

Latest saved OI419Oct 23, 2026
Last change+23vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WMB $70.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4192090 2026-10-02: 240 OI2026-10-05: 243 OI2026-10-06: 360 OI2026-10-07: 379 OI2026-10-08: 371 OI2026-10-09: 375 OI2026-10-12: 375 OI2026-10-14: 375 OI2026-10-15: 371 OI2026-10-16: 396 OI2026-10-21: 396 OI2026-10-23: 419 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, 2026419+23
Oct 21, 2026Viewing3960
Oct 16, 2026396+25
Oct 15, 2026371-4
Oct 14, 20263750
Oct 12, 20263750
Oct 09, 2026375+4
Oct 08, 2026371-8
Oct 07, 2026379+19
Oct 06, 2026360+117
Oct 05, 2026243+3
Oct 02, 2026240No prior observation