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Contract OI history

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Dec 18, 2026 EXPIRATION

WELL $250.00 Call

WELL261218C00250000

Latest saved OI1,096Oct 23, 2026
Last change+1vs 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. 1,0965480 2026-10-02: 664 OI2026-10-05: 664 OI2026-10-06: 664 OI2026-10-07: 656 OI2026-10-08: 658 OI2026-10-09: 761 OI2026-10-14: 763 OI2026-10-15: 765 OI2026-10-16: 768 OI2026-10-21: 1,095 OI2026-10-23: 1,096 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, 2026Viewing1,096+1
Oct 21, 20261,095+327
Oct 16, 2026768+3
Oct 15, 2026765+2
Oct 14, 2026763+2
Oct 09, 2026761+103
Oct 08, 2026658+2
Oct 07, 2026656-8
Oct 06, 20266640
Oct 05, 20266640
Oct 02, 2026664No prior observation