OITracker Cboe delayed data

Contract OI history

Back to B

Dec 18, 2026 EXPIRATION

B $20.00 Call

B261218C00020000

Latest saved OI1,249Oct 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 $20.00 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. 1,2506250 2026-10-02: 1,250 OI2026-10-05: 1,250 OI2026-10-06: 1,250 OI2026-10-07: 1,250 OI2026-10-08: 1,250 OI2026-10-09: 1,250 OI2026-10-13: 1,249 OI2026-10-14: 1,249 OI2026-10-15: 1,249 OI2026-10-16: 1,249 OI2026-10-21: 1,249 OI2026-10-23: 1,249 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, 2026Viewing1,2490
Oct 21, 20261,2490
Oct 16, 20261,2490
Oct 15, 20261,2490
Oct 14, 20261,2490
Oct 13, 20261,249-1
Oct 09, 20261,2500
Oct 08, 20261,2500
Oct 07, 20261,2500
Oct 06, 20261,2500
Oct 05, 20261,2500
Oct 02, 20261,250No prior observation