OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

B $50.00 Call

B270115C00050000

Latest saved OI13,203Oct 23, 2026
Last change-22vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $50.00 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. 13,2256,6120 2026-10-02: 10,189 OI2026-10-05: 10,245 OI2026-10-06: 10,245 OI2026-10-07: 13,141 OI2026-10-08: 13,128 OI2026-10-09: 13,106 OI2026-10-13: 13,128 OI2026-10-14: 13,158 OI2026-10-15: 13,153 OI2026-10-16: 13,155 OI2026-10-21: 13,225 OI2026-10-23: 13,203 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, 2026Viewing13,203-22
Oct 21, 202613,225+70
Oct 16, 202613,155+2
Oct 15, 202613,153-5
Oct 14, 202613,158+30
Oct 13, 202613,128+22
Oct 09, 202613,106-22
Oct 08, 202613,128-13
Oct 07, 202613,141+2,896
Oct 06, 202610,2450
Oct 05, 202610,245+56
Oct 02, 202610,189No prior observation