OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

HE $10.00 Put

HE270319P00010000

Latest saved OI193Oct 21, 2026
Last change+20vs 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. 193960 2026-10-02: 157 OI2026-10-05: 157 OI2026-10-06: 159 OI2026-10-07: 162 OI2026-10-08: 170 OI2026-10-09: 171 OI2026-10-13: 172 OI2026-10-14: 172 OI2026-10-16: 173 OI2026-10-21: 193 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, 2026Viewing193+20
Oct 16, 2026173+1
Oct 14, 20261720
Oct 13, 2026172+1
Oct 09, 2026171+1
Oct 08, 2026170+8
Oct 07, 2026162+3
Oct 06, 2026159+2
Oct 05, 20261570
Oct 02, 2026157No prior observation