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Contract OI history

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Oct 30, 2026 EXPIRATION

ZS $237.50 Call

ZS261030C00237500

Latest saved OI265Oct 23, 2026
Last change+184vs previous saved observation
Saved market days6Oct 12, 2026 onwards
Daily open interest Hover a point for its date and OI
ZS $237.50 call open interest history 6 saved observations from 2026-10-12 to 2026-10-23. Exact values and changes are listed in the table below. 2651320 2026-10-12: 0 OI2026-10-14: 80 OI2026-10-15: 80 OI2026-10-16: 81 OI2026-10-21: 81 OI2026-10-23: 265 OI Oct 12, 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, 2026265+184
Oct 21, 2026Viewing810
Oct 16, 202681+1
Oct 15, 2026800
Oct 14, 202680+80
Oct 12, 20260No prior observation