OITracker Cboe delayed data

Contract OI history

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Jan 19, 2029 EXPIRATION

BX $70.00 Put

BX290119P00070000

Latest saved OI2,514Oct 23, 2026
Last change+2,500vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BX $70.00 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. 2,5141,2570 2026-10-02: 6 OI2026-10-05: 6 OI2026-10-06: 6 OI2026-10-07: 6 OI2026-10-08: 8 OI2026-10-09: 11 OI2026-10-13: 14 OI2026-10-14: 14 OI2026-10-15: 14 OI2026-10-16: 14 OI2026-10-21: 14 OI2026-10-23: 2,514 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, 2026Viewing2,514+2,500
Oct 21, 2026140
Oct 16, 2026140
Oct 15, 2026140
Oct 14, 2026140
Oct 13, 202614+3
Oct 09, 202611+3
Oct 08, 20268+2
Oct 07, 202660
Oct 06, 202660
Oct 05, 202660
Oct 02, 20266No prior observation