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Contract OI history

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Dec 17, 2027 EXPIRATION

ZBIO $20.00 Put

ZBIO271217P00020000

Latest saved OI4,135Oct 23, 2026
Last change0vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZBIO $20.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 4,1352,0670 2026-10-09: 4,135 OI2026-10-13: 4,135 OI2026-10-14: 4,135 OI2026-10-16: 4,135 OI2026-10-20: 4,135 OI2026-10-23: 4,135 OI Oct 09, 2026Oct 23, 2026

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

ZBIO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20264,1350
Oct 20, 2026Viewing4,1350
Oct 16, 20264,1350
Oct 14, 20264,1350
Oct 13, 20264,1350
Oct 09, 20264,135No prior observation