OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

BX $100.00 Put

BX270319P00100000

Latest saved OI1,619Oct 23, 2026
Last change+13vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BX $100.00 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. 1,6198090 2026-10-02: 852 OI2026-10-05: 852 OI2026-10-06: 853 OI2026-10-07: 859 OI2026-10-08: 859 OI2026-10-09: 859 OI2026-10-13: 923 OI2026-10-14: 929 OI2026-10-15: 941 OI2026-10-16: 952 OI2026-10-21: 1,606 OI2026-10-23: 1,619 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,619+13
Oct 21, 20261,606+654
Oct 16, 2026952+11
Oct 15, 2026941+12
Oct 14, 2026929+6
Oct 13, 2026923+64
Oct 09, 20268590
Oct 08, 20268590
Oct 07, 2026859+6
Oct 06, 2026853+1
Oct 05, 20268520
Oct 02, 2026852No prior observation