OITracker Cboe delayed data

Contract OI history

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Sep 17, 2027 EXPIRATION

BX $120.00 Put

BX270917P00120000

Latest saved OI1,329Oct 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
BX $120.00 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. 1,3296640 2026-10-02: 1,322 OI2026-10-05: 1,322 OI2026-10-06: 1,322 OI2026-10-07: 1,322 OI2026-10-08: 1,322 OI2026-10-09: 1,325 OI2026-10-13: 1,325 OI2026-10-14: 1,326 OI2026-10-15: 1,326 OI2026-10-16: 1,326 OI2026-10-21: 1,326 OI2026-10-23: 1,329 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, 2026Viewing1,329+3
Oct 21, 20261,3260
Oct 16, 20261,3260
Oct 15, 20261,3260
Oct 14, 20261,326+1
Oct 13, 20261,3250
Oct 09, 20261,325+3
Oct 08, 20261,3220
Oct 07, 20261,3220
Oct 06, 20261,3220
Oct 05, 20261,3220
Oct 02, 20261,322No prior observation