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Contract OI history

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Dec 17, 2027 EXPIRATION

WFC $40.00 Put

WFC271217P00040000

Latest saved OI331Oct 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. 3311650 2026-10-02: 328 OI2026-10-05: 328 OI2026-10-06: 328 OI2026-10-07: 328 OI2026-10-08: 328 OI2026-10-09: 328 OI2026-10-14: 328 OI2026-10-15: 331 OI2026-10-16: 331 OI2026-10-21: 331 OI2026-10-23: 331 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, 2026Viewing3310
Oct 21, 20263310
Oct 16, 20263310
Oct 15, 2026331+3
Oct 14, 20263280
Oct 09, 20263280
Oct 08, 20263280
Oct 07, 20263280
Oct 06, 20263280
Oct 05, 20263280
Oct 02, 2026328No prior observation