OITracker Cboe delayed data

Contract OI history

Back to B

Jan 15, 2027 EXPIRATION

B $39.00 Put

B270115P00039000

Latest saved OI73Oct 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 $39.00 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. 94470 2026-10-02: 94 OI2026-10-05: 67 OI2026-10-06: 67 OI2026-10-07: 67 OI2026-10-08: 68 OI2026-10-09: 68 OI2026-10-13: 69 OI2026-10-14: 69 OI2026-10-15: 73 OI2026-10-16: 73 OI2026-10-21: 71 OI2026-10-23: 73 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, 2026Viewing73+2
Oct 21, 202671-2
Oct 16, 2026730
Oct 15, 202673+4
Oct 14, 2026690
Oct 13, 202669+1
Oct 09, 2026680
Oct 08, 202668+1
Oct 07, 2026670
Oct 06, 2026670
Oct 05, 202667-27
Oct 02, 202694No prior observation