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Contract OI history

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Nov 20, 2026 EXPIRATION

BZH $20.00 Put

BZH261120P00020000

Latest saved OI50Oct 23, 2026
Last change-1,099vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
BZH $20.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,1495740 2026-10-02: 50 OI2026-10-05: 50 OI2026-10-06: 50 OI2026-10-07: 50 OI2026-10-08: 50 OI2026-10-09: 50 OI2026-10-13: 50 OI2026-10-14: 50 OI2026-10-16: 50 OI2026-10-19: 1,149 OI2026-10-23: 50 OI Oct 02, 2026Oct 23, 2026

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

BZH contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing50-1,099
Oct 19, 20261,149+1,099
Oct 16, 2026500
Oct 14, 2026500
Oct 13, 2026500
Oct 09, 2026500
Oct 08, 2026500
Oct 07, 2026500
Oct 06, 2026500
Oct 05, 2026500
Oct 02, 202650No prior observation