OITracker Cboe delayed data

Contract OI history

Back to B

Jan 19, 2029 EXPIRATION

B $35.00 Put

B290119P00035000

Latest saved OI48Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $35.00 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. 48240 2026-10-02: 28 OI2026-10-05: 31 OI2026-10-06: 31 OI2026-10-07: 32 OI2026-10-08: 34 OI2026-10-09: 34 OI2026-10-13: 44 OI2026-10-14: 45 OI2026-10-15: 47 OI2026-10-16: 47 OI2026-10-21: 47 OI2026-10-23: 48 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, 2026Viewing48+1
Oct 21, 2026470
Oct 16, 2026470
Oct 15, 202647+2
Oct 14, 202645+1
Oct 13, 202644+10
Oct 09, 2026340
Oct 08, 202634+2
Oct 07, 202632+1
Oct 06, 2026310
Oct 05, 202631+3
Oct 02, 202628No prior observation