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Contract OI history

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Nov 20, 2026 EXPIRATION

BXP $57.50 Put

BXP261120P00057500

Latest saved OI576Oct 23, 2026
Last change+5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BXP $57.50 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. 5762880 2026-10-02: 14 OI2026-10-05: 14 OI2026-10-06: 16 OI2026-10-07: 16 OI2026-10-08: 16 OI2026-10-09: 16 OI2026-10-13: 18 OI2026-10-14: 18 OI2026-10-15: 568 OI2026-10-16: 570 OI2026-10-21: 571 OI2026-10-23: 576 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

BXP contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing576+5
Oct 21, 2026571+1
Oct 16, 2026570+2
Oct 15, 2026568+550
Oct 14, 2026180
Oct 13, 202618+2
Oct 09, 2026160
Oct 08, 2026160
Oct 07, 2026160
Oct 06, 202616+2
Oct 05, 2026140
Oct 02, 202614No prior observation