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Contract OI history

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Dec 18, 2026 EXPIRATION

WLK $75.00 Call

WLK261218C00075000

Latest saved OI11Oct 23, 2026
Last change+7vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WLK $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. 1150 2026-10-02: 3 OI2026-10-05: 3 OI2026-10-06: 3 OI2026-10-07: 3 OI2026-10-08: 3 OI2026-10-09: 4 OI2026-10-12: 4 OI2026-10-14: 4 OI2026-10-15: 4 OI2026-10-16: 4 OI2026-10-21: 4 OI2026-10-23: 11 OI Oct 02, 2026Oct 23, 2026

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

WLK contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 202611+7
Oct 21, 2026Viewing40
Oct 16, 202640
Oct 15, 202640
Oct 14, 202640
Oct 12, 202640
Oct 09, 20264+1
Oct 08, 202630
Oct 07, 202630
Oct 06, 202630
Oct 05, 202630
Oct 02, 20263No prior observation