OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

HE $15.00 Put

HE280121P00015000

Latest saved OI100Oct 21, 2026
Last change-33vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HE $15.00 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. 179890 2026-10-02: 179 OI2026-10-05: 179 OI2026-10-06: 168 OI2026-10-07: 168 OI2026-10-08: 168 OI2026-10-09: 168 OI2026-10-13: 156 OI2026-10-14: 128 OI2026-10-16: 133 OI2026-10-21: 100 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, 2026Viewing100-33
Oct 16, 2026133+5
Oct 14, 2026128-28
Oct 13, 2026156-12
Oct 09, 20261680
Oct 08, 20261680
Oct 07, 20261680
Oct 06, 2026168-11
Oct 05, 20261790
Oct 02, 2026179No prior observation