OITracker Cboe delayed data

Contract OI history

Back to B

Nov 20, 2026 EXPIRATION

B $30.00 Put

B261120P00030000

Latest saved OI128Oct 23, 2026
Last change+9vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $30.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 128640 2026-10-02: 96 OI2026-10-05: 96 OI2026-10-06: 96 OI2026-10-07: 96 OI2026-10-08: 98 OI2026-10-09: 98 OI2026-10-13: 119 OI2026-10-14: 119 OI2026-10-15: 119 OI2026-10-16: 119 OI2026-10-21: 119 OI2026-10-23: 128 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, 2026Viewing128+9
Oct 21, 20261190
Oct 16, 20261190
Oct 15, 20261190
Oct 14, 20261190
Oct 13, 2026119+21
Oct 09, 2026980
Oct 08, 202698+2
Oct 07, 2026960
Oct 06, 2026960
Oct 05, 2026960
Oct 02, 202696No prior observation