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Contract OI history

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Jan 21, 2028 EXPIRATION

BX $75.00 Put

BX280121P00075000

Latest saved OI849Oct 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 $75.00 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. 1,1405700 2026-10-02: 1,140 OI2026-10-05: 842 OI2026-10-06: 843 OI2026-10-07: 843 OI2026-10-08: 843 OI2026-10-09: 844 OI2026-10-13: 846 OI2026-10-14: 848 OI2026-10-15: 848 OI2026-10-16: 848 OI2026-10-21: 849 OI2026-10-23: 849 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, 2026Viewing8490
Oct 21, 2026849+1
Oct 16, 20268480
Oct 15, 20268480
Oct 14, 2026848+2
Oct 13, 2026846+2
Oct 09, 2026844+1
Oct 08, 20268430
Oct 07, 20268430
Oct 06, 2026843+1
Oct 05, 2026842-298
Oct 02, 20261,140No prior observation