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Contract OI history

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Nov 20, 2026 EXPIRATION

WELL $240.00 Call

WELL261120C00240000

Latest saved OI919Oct 23, 2026
Last change+38vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WELL $240.00 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. 9194590 2026-10-02: 45 OI2026-10-05: 52 OI2026-10-06: 55 OI2026-10-07: 58 OI2026-10-08: 61 OI2026-10-09: 74 OI2026-10-14: 161 OI2026-10-15: 292 OI2026-10-16: 293 OI2026-10-21: 881 OI2026-10-23: 919 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, 2026Viewing919+38
Oct 21, 2026881+588
Oct 16, 2026293+1
Oct 15, 2026292+131
Oct 14, 2026161+87
Oct 09, 202674+13
Oct 08, 202661+3
Oct 07, 202658+3
Oct 06, 202655+3
Oct 05, 202652+7
Oct 02, 202645No prior observation