OITracker Cboe delayed data

Contract OI history

Back to WELL

Mar 19, 2027 EXPIRATION

WELL $190.00 Put

WELL270319P00190000

Latest saved OI1,984Oct 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 $190.00 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. 1,9849920 2026-10-02: 1,420 OI2026-10-05: 1,420 OI2026-10-06: 1,420 OI2026-10-07: 1,693 OI2026-10-08: 1,983 OI2026-10-09: 1,983 OI2026-10-14: 1,983 OI2026-10-15: 1,983 OI2026-10-16: 1,983 OI2026-10-21: 1,984 OI2026-10-23: 1,984 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, 2026Viewing1,9840
Oct 21, 20261,984+1
Oct 16, 20261,9830
Oct 15, 20261,9830
Oct 14, 20261,9830
Oct 09, 20261,9830
Oct 08, 20261,983+290
Oct 07, 20261,693+273
Oct 06, 20261,4200
Oct 05, 20261,4200
Oct 02, 20261,420No prior observation