OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

B $75.00 Call

B280121C00075000

Latest saved OI3,254Oct 23, 2026
Last change-6vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $75.00 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. 3,2601,6300 2026-10-02: 3,191 OI2026-10-05: 3,195 OI2026-10-06: 3,195 OI2026-10-07: 3,215 OI2026-10-08: 3,260 OI2026-10-09: 3,260 OI2026-10-13: 3,260 OI2026-10-14: 3,260 OI2026-10-15: 3,260 OI2026-10-16: 3,260 OI2026-10-21: 3,260 OI2026-10-23: 3,254 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, 2026Viewing3,254-6
Oct 21, 20263,2600
Oct 16, 20263,2600
Oct 15, 20263,2600
Oct 14, 20263,2600
Oct 13, 20263,2600
Oct 09, 20263,2600
Oct 08, 20263,260+45
Oct 07, 20263,215+20
Oct 06, 20263,1950
Oct 05, 20263,195+4
Oct 02, 20263,191No prior observation