OITracker Cboe delayed data

Contract OI history

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Nov 06, 2026 EXPIRATION

B $38.00 Put

B261106P00038000

Latest saved OI51Oct 23, 2026
Last change+3vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
B $38.00 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. 51250 2026-10-02: 13 OI2026-10-05: 16 OI2026-10-06: 16 OI2026-10-07: 16 OI2026-10-08: 18 OI2026-10-09: 17 OI2026-10-13: 28 OI2026-10-14: 28 OI2026-10-15: 39 OI2026-10-16: 38 OI2026-10-21: 48 OI2026-10-23: 51 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, 2026Viewing51+3
Oct 21, 202648+10
Oct 16, 202638-1
Oct 15, 202639+11
Oct 14, 2026280
Oct 13, 202628+11
Oct 09, 202617-1
Oct 08, 202618+2
Oct 07, 2026160
Oct 06, 2026160
Oct 05, 202616+3
Oct 02, 202613No prior observation