OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

ZS $210.00 Put

ZS270115P00210000

Latest saved OI391Oct 23, 2026
Last change-3vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZS $210.00 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. 5832910 2026-10-09: 579 OI2026-10-12: 583 OI2026-10-14: 382 OI2026-10-15: 391 OI2026-10-16: 391 OI2026-10-21: 394 OI2026-10-23: 391 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, 2026391-3
Oct 21, 2026Viewing394+3
Oct 16, 20263910
Oct 15, 2026391+9
Oct 14, 2026382-201
Oct 12, 2026583+4
Oct 09, 2026579No prior observation