OITracker Cboe delayed data

Contract OI history

Back to B

Jan 15, 2027 EXPIRATION

B $36.00 Put

B270115P00036000

Latest saved OI1,947Oct 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 $36.00 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. 1,9479730 2026-10-02: 1,916 OI2026-10-05: 1,927 OI2026-10-06: 1,927 OI2026-10-07: 1,928 OI2026-10-08: 1,938 OI2026-10-09: 1,940 OI2026-10-13: 1,939 OI2026-10-14: 1,939 OI2026-10-15: 1,944 OI2026-10-16: 1,945 OI2026-10-21: 1,945 OI2026-10-23: 1,947 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, 2026Viewing1,947+2
Oct 21, 20261,9450
Oct 16, 20261,945+1
Oct 15, 20261,944+5
Oct 14, 20261,9390
Oct 13, 20261,939-1
Oct 09, 20261,940+2
Oct 08, 20261,938+10
Oct 07, 20261,928+1
Oct 06, 20261,9270
Oct 05, 20261,927+11
Oct 02, 20261,916No prior observation