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Contract OI history

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Nov 20, 2026 EXPIRATION

HBM $40.00 Call

HBM261120C00040000

Latest saved OI1,427Oct 20, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
HBM $40.00 call open interest history 10 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 1,4277130 2026-10-02: 1,427 OI2026-10-05: 1,426 OI2026-10-06: 1,427 OI2026-10-07: 1,427 OI2026-10-08: 1,427 OI2026-10-09: 1,427 OI2026-10-13: 1,427 OI2026-10-14: 1,427 OI2026-10-16: 1,427 OI2026-10-20: 1,427 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, 2026Viewing1,4270
Oct 16, 20261,4270
Oct 14, 20261,4270
Oct 13, 20261,4270
Oct 09, 20261,4270
Oct 08, 20261,4270
Oct 07, 20261,4270
Oct 06, 20261,427+1
Oct 05, 20261,426-1
Oct 02, 20261,427No prior observation