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Contract OI history

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Nov 20, 2026 EXPIRATION

ZION $55.00 Put

ZION261120P00055000

Latest saved OI1,001Oct 23, 2026
Last change-1vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZION $55.00 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. 1,0025010 2026-10-09: 911 OI2026-10-14: 915 OI2026-10-15: 917 OI2026-10-16: 922 OI2026-10-21: 1,002 OI2026-10-23: 1,001 OI Oct 09, 2026Oct 23, 2026

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

ZION contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,001-1
Oct 21, 20261,002+80
Oct 16, 2026922+5
Oct 15, 2026917+2
Oct 14, 2026915+4
Oct 09, 2026911No prior observation