OITracker Cboe delayed data

Contract OI history

Back to B

Mar 19, 2027 EXPIRATION

B $29.00 Put

B270319P00029000

Latest saved OI168Oct 23, 2026
Last change+2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $29.00 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. 168840 2026-10-02: 85 OI2026-10-05: 85 OI2026-10-06: 85 OI2026-10-07: 162 OI2026-10-08: 165 OI2026-10-09: 165 OI2026-10-13: 165 OI2026-10-14: 166 OI2026-10-15: 166 OI2026-10-16: 165 OI2026-10-21: 166 OI2026-10-23: 168 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, 2026Viewing168+2
Oct 21, 2026166+1
Oct 16, 2026165-1
Oct 15, 20261660
Oct 14, 2026166+1
Oct 13, 20261650
Oct 09, 20261650
Oct 08, 2026165+3
Oct 07, 2026162+77
Oct 06, 2026850
Oct 05, 2026850
Oct 02, 202685No prior observation