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Contract OI history

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May 21, 2027 EXPIRATION

HESM $30.00 Put

HESM270521P00030000

Latest saved OI318Oct 20, 2026
Last change+41vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HESM $30.00 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. 3181590 2026-10-02: 6 OI2026-10-05: 6 OI2026-10-06: 6 OI2026-10-07: 6 OI2026-10-08: 80 OI2026-10-09: 90 OI2026-10-13: 234 OI2026-10-15: 271 OI2026-10-16: 277 OI2026-10-20: 318 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, 2026Viewing318+41
Oct 16, 2026277+6
Oct 15, 2026271+37
Oct 13, 2026234+144
Oct 09, 202690+10
Oct 08, 202680+74
Oct 07, 202660
Oct 06, 202660
Oct 05, 202660
Oct 02, 20266No prior observation