OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

HE $7.50 Put

HE280121P00007500

Latest saved OI142Oct 21, 2026
Last change+2vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HE $7.50 put open interest history 10 saved observations from 2026-10-02 to 2026-10-21. Exact values and changes are listed in the table below. 142710 2026-10-02: 95 OI2026-10-05: 95 OI2026-10-06: 115 OI2026-10-07: 115 OI2026-10-08: 115 OI2026-10-09: 125 OI2026-10-13: 125 OI2026-10-14: 125 OI2026-10-16: 140 OI2026-10-21: 142 OI Oct 02, 2026Oct 21, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

HE contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 21, 2026Viewing142+2
Oct 16, 2026140+15
Oct 14, 20261250
Oct 13, 20261250
Oct 09, 2026125+10
Oct 08, 20261150
Oct 07, 20261150
Oct 06, 2026115+20
Oct 05, 2026950
Oct 02, 202695No prior observation