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Contract OI history

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Nov 20, 2026 EXPIRATION

HBM $22.50 Put

HBM261120P00022500

Latest saved OI681Oct 20, 2026
Last change+35vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HBM $22.50 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. 6813400 2026-10-02: 632 OI2026-10-05: 632 OI2026-10-06: 632 OI2026-10-07: 632 OI2026-10-08: 632 OI2026-10-09: 631 OI2026-10-13: 631 OI2026-10-14: 632 OI2026-10-16: 646 OI2026-10-20: 681 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, 2026Viewing681+35
Oct 16, 2026646+14
Oct 14, 2026632+1
Oct 13, 20266310
Oct 09, 2026631-1
Oct 08, 20266320
Oct 07, 20266320
Oct 06, 20266320
Oct 05, 20266320
Oct 02, 2026632No prior observation