OITracker Cboe delayed data

Contract OI history

Back to B

Jan 15, 2027 EXPIRATION

B $33.00 Put

B270115P00033000

Latest saved OI4,540Oct 23, 2026
Last change+100vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $33.00 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. 4,5402,2700 2026-10-02: 4,337 OI2026-10-05: 4,337 OI2026-10-06: 4,337 OI2026-10-07: 4,337 OI2026-10-08: 4,337 OI2026-10-09: 4,337 OI2026-10-13: 4,297 OI2026-10-14: 4,326 OI2026-10-15: 4,443 OI2026-10-16: 4,443 OI2026-10-21: 4,440 OI2026-10-23: 4,540 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, 2026Viewing4,540+100
Oct 21, 20264,440-3
Oct 16, 20264,4430
Oct 15, 20264,443+117
Oct 14, 20264,326+29
Oct 13, 20264,297-40
Oct 09, 20264,3370
Oct 08, 20264,3370
Oct 07, 20264,3370
Oct 06, 20264,3370
Oct 05, 20264,3370
Oct 02, 20264,337No prior observation