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Contract OI history

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Jan 21, 2028 EXPIRATION

BX $115.00 Put

BX280121P00115000

Latest saved OI2,439Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BX $115.00 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. 2,5781,2890 2026-10-02: 2,577 OI2026-10-05: 2,577 OI2026-10-06: 2,577 OI2026-10-07: 2,577 OI2026-10-08: 2,577 OI2026-10-09: 2,578 OI2026-10-13: 2,578 OI2026-10-14: 2,578 OI2026-10-15: 2,443 OI2026-10-16: 2,438 OI2026-10-21: 2,438 OI2026-10-23: 2,439 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, 2026Viewing2,439+1
Oct 21, 20262,4380
Oct 16, 20262,438-5
Oct 15, 20262,443-135
Oct 14, 20262,5780
Oct 13, 20262,5780
Oct 09, 20262,578+1
Oct 08, 20262,5770
Oct 07, 20262,5770
Oct 06, 20262,5770
Oct 05, 20262,5770
Oct 02, 20262,577No prior observation