OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

B $45.00 Call

B280121C00045000

Latest saved OI1,001Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $45.00 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. 1,0015000 2026-10-02: 985 OI2026-10-05: 988 OI2026-10-06: 988 OI2026-10-07: 991 OI2026-10-08: 989 OI2026-10-09: 985 OI2026-10-13: 998 OI2026-10-14: 999 OI2026-10-15: 995 OI2026-10-16: 997 OI2026-10-21: 999 OI2026-10-23: 1,001 OI Oct 02, 2026Oct 23, 2026

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

B contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,001+2
Oct 21, 2026999+2
Oct 16, 2026997+2
Oct 15, 2026995-4
Oct 14, 2026999+1
Oct 13, 2026998+13
Oct 09, 2026985-4
Oct 08, 2026989-2
Oct 07, 2026991+3
Oct 06, 20269880
Oct 05, 2026988+3
Oct 02, 2026985No prior observation