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Contract OI history

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Nov 20, 2026 EXPIRATION

BXP $55.00 Put

BXP261120P00055000

Latest saved OI403Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BXP $55.00 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. 4032010 2026-10-02: 19 OI2026-10-05: 19 OI2026-10-06: 34 OI2026-10-07: 259 OI2026-10-08: 259 OI2026-10-09: 259 OI2026-10-13: 402 OI2026-10-14: 402 OI2026-10-15: 402 OI2026-10-16: 402 OI2026-10-21: 403 OI2026-10-23: 403 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, 2026Viewing4030
Oct 21, 2026403+1
Oct 16, 20264020
Oct 15, 20264020
Oct 14, 20264020
Oct 13, 2026402+143
Oct 09, 20262590
Oct 08, 20262590
Oct 07, 2026259+225
Oct 06, 202634+15
Oct 05, 2026190
Oct 02, 202619No prior observation