OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

HE $20.00 Call

HE280121C00020000

Latest saved OI634Oct 21, 2026
Last change-10vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HE $20.00 call open interest history 10 saved observations from 2026-10-02 to 2026-10-21. Exact values and changes are listed in the table below. 6443220 2026-10-02: 644 OI2026-10-05: 644 OI2026-10-06: 644 OI2026-10-07: 644 OI2026-10-08: 644 OI2026-10-09: 644 OI2026-10-13: 644 OI2026-10-14: 644 OI2026-10-16: 644 OI2026-10-21: 634 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, 2026Viewing634-10
Oct 16, 20266440
Oct 14, 20266440
Oct 13, 20266440
Oct 09, 20266440
Oct 08, 20266440
Oct 07, 20266440
Oct 06, 20266440
Oct 05, 20266440
Oct 02, 2026644No prior observation