OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

HE $10.00 Put

HE280121P00010000

Latest saved OI370Oct 21, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HE $10.00 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. 3711850 2026-10-02: 352 OI2026-10-05: 352 OI2026-10-06: 352 OI2026-10-07: 352 OI2026-10-08: 352 OI2026-10-09: 356 OI2026-10-13: 356 OI2026-10-14: 371 OI2026-10-16: 370 OI2026-10-21: 370 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, 2026Viewing3700
Oct 16, 2026370-1
Oct 14, 2026371+15
Oct 13, 20263560
Oct 09, 2026356+4
Oct 08, 20263520
Oct 07, 20263520
Oct 06, 20263520
Oct 05, 20263520
Oct 02, 2026352No prior observation