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Contract OI history

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Nov 20, 2026 EXPIRATION

HESM $37.00 Put

HESM261120P00037000

Latest saved OI136Oct 20, 2026
Last change-6vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HESM $37.00 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. 150750 2026-10-02: 144 OI2026-10-05: 149 OI2026-10-06: 150 OI2026-10-07: 150 OI2026-10-08: 146 OI2026-10-09: 146 OI2026-10-13: 142 OI2026-10-15: 142 OI2026-10-16: 142 OI2026-10-20: 136 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, 2026Viewing136-6
Oct 16, 20261420
Oct 15, 20261420
Oct 13, 2026142-4
Oct 09, 20261460
Oct 08, 2026146-4
Oct 07, 20261500
Oct 06, 2026150+1
Oct 05, 2026149+5
Oct 02, 2026144No prior observation