OITracker Cboe delayed data

Contract OI history

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Jun 17, 2027 EXPIRATION

B $50.00 Call

B270617C00050000

Latest saved OI4,648Oct 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 $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. 4,6482,3240 2026-10-02: 4,570 OI2026-10-05: 4,570 OI2026-10-06: 4,570 OI2026-10-07: 4,593 OI2026-10-08: 4,593 OI2026-10-09: 4,597 OI2026-10-13: 4,596 OI2026-10-14: 4,595 OI2026-10-15: 4,608 OI2026-10-16: 4,615 OI2026-10-21: 4,646 OI2026-10-23: 4,648 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, 2026Viewing4,648+2
Oct 21, 20264,646+31
Oct 16, 20264,615+7
Oct 15, 20264,608+13
Oct 14, 20264,595-1
Oct 13, 20264,596-1
Oct 09, 20264,597+4
Oct 08, 20264,5930
Oct 07, 20264,593+23
Oct 06, 20264,5700
Oct 05, 20264,5700
Oct 02, 20264,570No prior observation