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Contract OI history

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Oct 30, 2026 EXPIRATION

ZS $235.00 Put

ZS261030P00235000

Latest saved OI175Oct 23, 2026
Last change+168vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZS $235.00 put open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 175870 2026-10-09: 4 OI2026-10-12: 4 OI2026-10-14: 4 OI2026-10-15: 4 OI2026-10-16: 4 OI2026-10-21: 7 OI2026-10-23: 175 OI Oct 09, 2026Oct 23, 2026

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

ZS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026175+168
Oct 21, 2026Viewing7+3
Oct 16, 202640
Oct 15, 202640
Oct 14, 202640
Oct 12, 202640
Oct 09, 20264No prior observation