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Contract OI history

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Nov 20, 2026 EXPIRATION

BX $100.00 Put

BX261120P00100000

Latest saved OI19,077Oct 23, 2026
Last change+17vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BX $100.00 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. 19,0779,5380 2026-10-02: 2,152 OI2026-10-05: 2,224 OI2026-10-06: 2,632 OI2026-10-07: 2,590 OI2026-10-08: 2,565 OI2026-10-09: 2,622 OI2026-10-13: 2,571 OI2026-10-14: 2,812 OI2026-10-15: 8,226 OI2026-10-16: 8,238 OI2026-10-21: 19,060 OI2026-10-23: 19,077 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, 2026Viewing19,077+17
Oct 21, 202619,060+10,822
Oct 16, 20268,238+12
Oct 15, 20268,226+5,414
Oct 14, 20262,812+241
Oct 13, 20262,571-51
Oct 09, 20262,622+57
Oct 08, 20262,565-25
Oct 07, 20262,590-42
Oct 06, 20262,632+408
Oct 05, 20262,224+72
Oct 02, 20262,152No prior observation