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Contract OI history

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Nov 20, 2026 EXPIRATION

HESM $40.00 Call

HESM261120C00040000

Latest saved OI514Oct 20, 2026
Last change-1vs 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. 5402700 2026-10-02: 540 OI2026-10-05: 535 OI2026-10-06: 535 OI2026-10-07: 533 OI2026-10-08: 532 OI2026-10-09: 520 OI2026-10-13: 519 OI2026-10-15: 515 OI2026-10-16: 515 OI2026-10-20: 514 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, 2026Viewing514-1
Oct 16, 20265150
Oct 15, 2026515-4
Oct 13, 2026519-1
Oct 09, 2026520-12
Oct 08, 2026532-1
Oct 07, 2026533-2
Oct 06, 20265350
Oct 05, 2026535-5
Oct 02, 2026540No prior observation