OITracker Cboe delayed data

Contract OI history

Back to HESM

May 21, 2027 EXPIRATION

HESM $37.00 Call

HESM270521C00037000

Latest saved OI286Oct 20, 2026
Last change+12vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HESM $37.00 call open interest history 10 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 2861430 2026-10-02: 55 OI2026-10-05: 55 OI2026-10-06: 55 OI2026-10-07: 55 OI2026-10-08: 265 OI2026-10-09: 273 OI2026-10-13: 273 OI2026-10-15: 273 OI2026-10-16: 274 OI2026-10-20: 286 OI Oct 02, 2026Oct 20, 2026

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

HESM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing286+12
Oct 16, 2026274+1
Oct 15, 20262730
Oct 13, 20262730
Oct 09, 2026273+8
Oct 08, 2026265+210
Oct 07, 2026550
Oct 06, 2026550
Oct 05, 2026550
Oct 02, 202655No prior observation