OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

ZS $250.00 Put

ZS270115P00250000

Latest saved OI215Oct 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 $250.00 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. 2181090 2026-10-09: 218 OI2026-10-12: 217 OI2026-10-14: 216 OI2026-10-15: 214 OI2026-10-16: 214 OI2026-10-21: 214 OI2026-10-23: 215 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, 2026215+1
Oct 21, 2026Viewing2140
Oct 16, 20262140
Oct 15, 2026214-2
Oct 14, 2026216-1
Oct 12, 2026217-1
Oct 09, 2026218No prior observation