OITracker Cboe delayed data

Contract OI history

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Nov 20, 2026 EXPIRATION

BX $70.00 Put

BX261120P00070000

Latest saved OI798Oct 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. 7983990 2026-10-02: 308 OI2026-10-05: 308 OI2026-10-06: 315 OI2026-10-07: 315 OI2026-10-08: 315 OI2026-10-09: 326 OI2026-10-13: 326 OI2026-10-14: 331 OI2026-10-15: 333 OI2026-10-16: 333 OI2026-10-21: 798 OI2026-10-23: 798 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, 2026Viewing7980
Oct 21, 2026798+465
Oct 16, 20263330
Oct 15, 2026333+2
Oct 14, 2026331+5
Oct 13, 20263260
Oct 09, 2026326+11
Oct 08, 20263150
Oct 07, 20263150
Oct 06, 2026315+7
Oct 05, 20263080
Oct 02, 2026308No prior observation