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Contract OI history

Back to WELL

Jan 15, 2027 EXPIRATION

WELL $220.00 Put

WELL270115P00220000

Latest saved OI911Oct 23, 2026
Last change+119vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WELL $220.00 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. 1,0975480 2026-10-02: 1,087 OI2026-10-05: 1,097 OI2026-10-06: 864 OI2026-10-07: 860 OI2026-10-08: 723 OI2026-10-09: 723 OI2026-10-14: 729 OI2026-10-15: 734 OI2026-10-16: 734 OI2026-10-21: 792 OI2026-10-23: 911 OI Oct 02, 2026Oct 23, 2026

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

WELL contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing911+119
Oct 21, 2026792+58
Oct 16, 20267340
Oct 15, 2026734+5
Oct 14, 2026729+6
Oct 09, 20267230
Oct 08, 2026723-137
Oct 07, 2026860-4
Oct 06, 2026864-233
Oct 05, 20261,097+10
Oct 02, 20261,087No prior observation