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Contract OI history

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Nov 20, 2026 EXPIRATION

HESM $31.00 Put

HESM261120P00031000

Latest saved OI459Oct 20, 2026
Last change+26vs 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. 4592290 2026-10-02: 4 OI2026-10-05: 4 OI2026-10-06: 4 OI2026-10-07: 4 OI2026-10-08: 126 OI2026-10-09: 305 OI2026-10-13: 394 OI2026-10-15: 432 OI2026-10-16: 433 OI2026-10-20: 459 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, 2026Viewing459+26
Oct 16, 2026433+1
Oct 15, 2026432+38
Oct 13, 2026394+89
Oct 09, 2026305+179
Oct 08, 2026126+122
Oct 07, 202640
Oct 06, 202640
Oct 05, 202640
Oct 02, 20264No prior observation