OITracker Cboe delayed data

Contract OI history

Back to B

Jan 15, 2027 EXPIRATION

B $44.00 Put

B270115P00044000

Latest saved OI230Oct 23, 2026
Last change+27vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $44.00 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. 2301150 2026-10-02: 201 OI2026-10-05: 201 OI2026-10-06: 201 OI2026-10-07: 202 OI2026-10-08: 201 OI2026-10-09: 201 OI2026-10-13: 201 OI2026-10-14: 201 OI2026-10-15: 201 OI2026-10-16: 203 OI2026-10-21: 203 OI2026-10-23: 230 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, 2026Viewing230+27
Oct 21, 20262030
Oct 16, 2026203+2
Oct 15, 20262010
Oct 14, 20262010
Oct 13, 20262010
Oct 09, 20262010
Oct 08, 2026201-1
Oct 07, 2026202+1
Oct 06, 20262010
Oct 05, 20262010
Oct 02, 2026201No prior observation