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Contract OI history

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May 21, 2027 EXPIRATION

HESM $27.00 Put

HESM270521P00027000

Latest saved OI25Oct 20, 2026
Last change0vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
HESM $27.00 put open interest history 6 saved observations from 2026-10-08 to 2026-10-20. Exact values and changes are listed in the table below. 25120 2026-10-08: 0 OI2026-10-09: 0 OI2026-10-13: 6 OI2026-10-15: 25 OI2026-10-16: 25 OI2026-10-20: 25 OI Oct 08, 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, 2026Viewing250
Oct 16, 2026250
Oct 15, 202625+19
Oct 13, 20266+6
Oct 09, 202600
Oct 08, 20260No prior observation