OITracker Cboe delayed data

Contract OI history

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Mar 19, 2027 EXPIRATION

BX $70.00 Put

BX270319P00070000

Latest saved OI1,043Oct 23, 2026
Last change0vs 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. 1,0435210 2026-10-02: 276 OI2026-10-05: 278 OI2026-10-06: 278 OI2026-10-07: 278 OI2026-10-08: 278 OI2026-10-09: 278 OI2026-10-13: 278 OI2026-10-14: 293 OI2026-10-15: 295 OI2026-10-16: 1,043 OI2026-10-21: 1,043 OI2026-10-23: 1,043 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, 2026Viewing1,0430
Oct 21, 20261,0430
Oct 16, 20261,043+748
Oct 15, 2026295+2
Oct 14, 2026293+15
Oct 13, 20262780
Oct 09, 20262780
Oct 08, 20262780
Oct 07, 20262780
Oct 06, 20262780
Oct 05, 2026278+2
Oct 02, 2026276No prior observation