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Contract OI history

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Nov 20, 2026 EXPIRATION

HBM $17.50 Put

HBM261120P00017500

Latest saved OI702Oct 20, 2026
Last change-1vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HBM $17.50 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. 7033510 2026-10-02: 703 OI2026-10-05: 703 OI2026-10-06: 703 OI2026-10-07: 703 OI2026-10-08: 703 OI2026-10-09: 703 OI2026-10-13: 703 OI2026-10-14: 703 OI2026-10-16: 703 OI2026-10-20: 702 OI Oct 02, 2026Oct 20, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

HBM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing702-1
Oct 16, 20267030
Oct 14, 20267030
Oct 13, 20267030
Oct 09, 20267030
Oct 08, 20267030
Oct 07, 20267030
Oct 06, 20267030
Oct 05, 20267030
Oct 02, 2026703No prior observation