OITracker Cboe delayed data

Contract OI history

Back to B

Dec 18, 2026 EXPIRATION

B $25.00 Call

B261218C00025000

Latest saved OI935Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $25.00 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. 9504750 2026-10-02: 950 OI2026-10-05: 935 OI2026-10-06: 935 OI2026-10-07: 935 OI2026-10-08: 936 OI2026-10-09: 935 OI2026-10-13: 935 OI2026-10-14: 935 OI2026-10-15: 935 OI2026-10-16: 935 OI2026-10-21: 935 OI2026-10-23: 935 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, 2026Viewing9350
Oct 21, 20269350
Oct 16, 20269350
Oct 15, 20269350
Oct 14, 20269350
Oct 13, 20269350
Oct 09, 2026935-1
Oct 08, 2026936+1
Oct 07, 20269350
Oct 06, 20269350
Oct 05, 2026935-15
Oct 02, 2026950No prior observation