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Contract OI history

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Feb 19, 2027 EXPIRATION

HESM $40.00 Call

HESM270219C00040000

Latest saved OI378Oct 20, 2026
Last change-3vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HESM $40.00 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. 3981990 2026-10-02: 398 OI2026-10-05: 398 OI2026-10-06: 398 OI2026-10-07: 398 OI2026-10-08: 384 OI2026-10-09: 382 OI2026-10-13: 382 OI2026-10-15: 380 OI2026-10-16: 381 OI2026-10-20: 378 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, 2026Viewing378-3
Oct 16, 2026381+1
Oct 15, 2026380-2
Oct 13, 20263820
Oct 09, 2026382-2
Oct 08, 2026384-14
Oct 07, 20263980
Oct 06, 20263980
Oct 05, 20263980
Oct 02, 2026398No prior observation