OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

BX $140.00 Put

BX280121P00140000

Latest saved OI2,241Oct 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 $140.00 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. 2,2411,1200 2026-10-02: 2,241 OI2026-10-05: 2,241 OI2026-10-06: 2,241 OI2026-10-07: 2,241 OI2026-10-08: 2,241 OI2026-10-09: 2,241 OI2026-10-13: 2,241 OI2026-10-14: 2,241 OI2026-10-15: 2,241 OI2026-10-16: 2,241 OI2026-10-21: 2,241 OI2026-10-23: 2,241 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, 2026Viewing2,2410
Oct 21, 20262,2410
Oct 16, 20262,2410
Oct 15, 20262,2410
Oct 14, 20262,2410
Oct 13, 20262,2410
Oct 09, 20262,2410
Oct 08, 20262,2410
Oct 07, 20262,2410
Oct 06, 20262,2410
Oct 05, 20262,2410
Oct 02, 20262,241No prior observation