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Contract OI history

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Mar 19, 2027 EXPIRATION

WELL $230.00 Put

WELL270319P00230000

Latest saved OI720Oct 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 $230.00 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. 7203600 2026-10-02: 525 OI2026-10-05: 525 OI2026-10-06: 528 OI2026-10-07: 528 OI2026-10-08: 720 OI2026-10-09: 720 OI2026-10-14: 720 OI2026-10-15: 720 OI2026-10-16: 720 OI2026-10-21: 720 OI2026-10-23: 720 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, 2026Viewing7200
Oct 21, 20267200
Oct 16, 20267200
Oct 15, 20267200
Oct 14, 20267200
Oct 09, 20267200
Oct 08, 2026720+192
Oct 07, 20265280
Oct 06, 2026528+3
Oct 05, 20265250
Oct 02, 2026525No prior observation