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Contract OI history

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May 21, 2027 EXPIRATION

HESM $31.00 Put

HESM270521P00031000

Latest saved OI38Oct 20, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HESM $31.00 put open interest history 10 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 38190 2026-10-02: 0 OI2026-10-05: 0 OI2026-10-06: 0 OI2026-10-07: 0 OI2026-10-08: 4 OI2026-10-09: 14 OI2026-10-13: 25 OI2026-10-15: 38 OI2026-10-16: 38 OI2026-10-20: 38 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, 2026Viewing380
Oct 16, 2026380
Oct 15, 202638+13
Oct 13, 202625+11
Oct 09, 202614+10
Oct 08, 20264+4
Oct 07, 202600
Oct 06, 202600
Oct 05, 202600
Oct 02, 20260No prior observation