OITracker Cboe delayed data

Contract OI history

Back to B

Nov 20, 2026 EXPIRATION

B $49.00 Call

B261120C00049000

Latest saved OI81Oct 23, 2026
Last change+11vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $49.00 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. 81400 2026-10-02: 20 OI2026-10-05: 20 OI2026-10-06: 20 OI2026-10-07: 20 OI2026-10-08: 20 OI2026-10-09: 20 OI2026-10-13: 25 OI2026-10-14: 25 OI2026-10-15: 25 OI2026-10-16: 55 OI2026-10-21: 70 OI2026-10-23: 81 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, 2026Viewing81+11
Oct 21, 202670+15
Oct 16, 202655+30
Oct 15, 2026250
Oct 14, 2026250
Oct 13, 202625+5
Oct 09, 2026200
Oct 08, 2026200
Oct 07, 2026200
Oct 06, 2026200
Oct 05, 2026200
Oct 02, 202620No prior observation