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Contract OI history

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Mar 19, 2027 EXPIRATION

WELL $250.00 Call

WELL270319C00250000

Latest saved OI860Oct 23, 2026
Last change+62vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WELL $250.00 call open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 8604300 2026-10-02: 256 OI2026-10-05: 236 OI2026-10-06: 237 OI2026-10-07: 786 OI2026-10-08: 791 OI2026-10-09: 791 OI2026-10-14: 791 OI2026-10-15: 791 OI2026-10-16: 791 OI2026-10-21: 798 OI2026-10-23: 860 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, 2026Viewing860+62
Oct 21, 2026798+7
Oct 16, 20267910
Oct 15, 20267910
Oct 14, 20267910
Oct 09, 20267910
Oct 08, 2026791+5
Oct 07, 2026786+549
Oct 06, 2026237+1
Oct 05, 2026236-20
Oct 02, 2026256No prior observation