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Contract OI history

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Dec 18, 2026 EXPIRATION

ZS $175.00 Put

ZS261218P00175000

Latest saved OI351Oct 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 $175.00 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. 3521760 2026-10-09: 347 OI2026-10-12: 346 OI2026-10-14: 350 OI2026-10-15: 351 OI2026-10-16: 351 OI2026-10-21: 352 OI2026-10-23: 351 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, 2026Viewing351-1
Oct 21, 2026352+1
Oct 16, 20263510
Oct 15, 2026351+1
Oct 14, 2026350+4
Oct 12, 2026346-1
Oct 09, 2026347No prior observation