OITracker Cboe delayed data

Contract OI history

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Nov 13, 2026 EXPIRATION

B $38.00 Put

B261113P00038000

Latest saved OI245Oct 23, 2026
Last change+153vs 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. 2451220 2026-10-02: 5 OI2026-10-05: 55 OI2026-10-06: 55 OI2026-10-07: 55 OI2026-10-08: 60 OI2026-10-09: 60 OI2026-10-13: 61 OI2026-10-14: 63 OI2026-10-15: 67 OI2026-10-16: 67 OI2026-10-21: 92 OI2026-10-23: 245 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, 2026Viewing245+153
Oct 21, 202692+25
Oct 16, 2026670
Oct 15, 202667+4
Oct 14, 202663+2
Oct 13, 202661+1
Oct 09, 2026600
Oct 08, 202660+5
Oct 07, 2026550
Oct 06, 2026550
Oct 05, 202655+50
Oct 02, 20265No prior observation