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Contract OI history

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May 21, 2027 EXPIRATION

HESM $35.00 Call

HESM270521C00035000

Latest saved OI98Oct 20, 2026
Last change+8vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HESM $35.00 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. 104520 2026-10-02: 50 OI2026-10-05: 50 OI2026-10-06: 50 OI2026-10-07: 50 OI2026-10-08: 67 OI2026-10-09: 99 OI2026-10-13: 104 OI2026-10-15: 90 OI2026-10-16: 90 OI2026-10-20: 98 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, 2026Viewing98+8
Oct 16, 2026900
Oct 15, 202690-14
Oct 13, 2026104+5
Oct 09, 202699+32
Oct 08, 202667+17
Oct 07, 2026500
Oct 06, 2026500
Oct 05, 2026500
Oct 02, 202650No prior observation