OITracker Cboe delayed data

Contract OI history

Back to BF.B

Dec 18, 2026 EXPIRATION

BF.B $30.00 Call

BFB261218C00030000

Latest saved OI1,728Oct 23, 2026
Last change+3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BF.B $30.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,7288640 2026-10-02: 548 OI2026-10-05: 548 OI2026-10-06: 541 OI2026-10-07: 544 OI2026-10-08: 544 OI2026-10-09: 543 OI2026-10-13: 561 OI2026-10-14: 561 OI2026-10-15: 562 OI2026-10-16: 1,715 OI2026-10-21: 1,725 OI2026-10-23: 1,728 OI Oct 02, 2026Oct 23, 2026

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

BF.B contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,728+3
Oct 21, 20261,725+10
Oct 16, 20261,715+1,153
Oct 15, 2026562+1
Oct 14, 20265610
Oct 13, 2026561+18
Oct 09, 2026543-1
Oct 08, 20265440
Oct 07, 2026544+3
Oct 06, 2026541-7
Oct 05, 20265480
Oct 02, 2026548No prior observation