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Contract OI history

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Dec 18, 2026 EXPIRATION

WELL $270.00 Call

WELL261218C00270000

Latest saved OI1,395Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
WELL $270.00 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. 1,3956970 2026-10-02: 1,260 OI2026-10-05: 1,260 OI2026-10-06: 1,261 OI2026-10-07: 1,261 OI2026-10-08: 1,061 OI2026-10-09: 1,058 OI2026-10-14: 1,056 OI2026-10-15: 1,222 OI2026-10-16: 1,224 OI2026-10-21: 1,395 OI2026-10-23: 1,395 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, 2026Viewing1,3950
Oct 21, 20261,395+171
Oct 16, 20261,224+2
Oct 15, 20261,222+166
Oct 14, 20261,056-2
Oct 09, 20261,058-3
Oct 08, 20261,061-200
Oct 07, 20261,2610
Oct 06, 20261,261+1
Oct 05, 20261,2600
Oct 02, 20261,260No prior observation