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Contract OI history

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Dec 18, 2026 EXPIRATION

WFC $40.00 Put

WFC261218P00040000

Latest saved OI809Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WFC $40.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 8164080 2026-10-02: 816 OI2026-10-05: 816 OI2026-10-06: 809 OI2026-10-07: 809 OI2026-10-08: 809 OI2026-10-09: 809 OI2026-10-14: 809 OI2026-10-15: 809 OI2026-10-16: 809 OI2026-10-21: 809 OI2026-10-23: 809 OI Oct 02, 2026Oct 23, 2026

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

WFC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing8090
Oct 21, 20268090
Oct 16, 20268090
Oct 15, 20268090
Oct 14, 20268090
Oct 09, 20268090
Oct 08, 20268090
Oct 07, 20268090
Oct 06, 2026809-7
Oct 05, 20268160
Oct 02, 2026816No prior observation