OITracker Cboe delayed data

Contract OI history

Back to HBM

Apr 16, 2027 EXPIRATION

HBM $40.00 Call

HBM270416C00040000

Latest saved OI402Oct 20, 2026
Last change-17vs 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. 4192090 2026-10-02: 333 OI2026-10-05: 334 OI2026-10-06: 334 OI2026-10-07: 339 OI2026-10-08: 339 OI2026-10-09: 414 OI2026-10-13: 419 OI2026-10-14: 419 OI2026-10-16: 419 OI2026-10-20: 402 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, 2026Viewing402-17
Oct 16, 20264190
Oct 14, 20264190
Oct 13, 2026419+5
Oct 09, 2026414+75
Oct 08, 20263390
Oct 07, 2026339+5
Oct 06, 20263340
Oct 05, 2026334+1
Oct 02, 2026333No prior observation