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Contract OI history

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Dec 18, 2026 EXPIRATION

ZS $135.00 Put

ZS261218P00135000

Latest saved OI262Oct 23, 2026
Last change+1vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZS $135.00 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. 2641320 2026-10-09: 263 OI2026-10-12: 264 OI2026-10-14: 263 OI2026-10-15: 263 OI2026-10-16: 263 OI2026-10-21: 261 OI2026-10-23: 262 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, 2026262+1
Oct 21, 2026Viewing261-2
Oct 16, 20262630
Oct 15, 20262630
Oct 14, 2026263-1
Oct 12, 2026264+1
Oct 09, 2026263No prior observation