OITracker Cboe delayed data

Contract OI history

Back to ZS

Oct 30, 2026 EXPIRATION

ZS $255.00 Call

ZS261030C00255000

Latest saved OI130Oct 23, 2026
Last change+60vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZS $255.00 call open interest history 7 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 130650 2026-10-09: 56 OI2026-10-12: 56 OI2026-10-14: 71 OI2026-10-15: 70 OI2026-10-16: 72 OI2026-10-21: 70 OI2026-10-23: 130 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, 2026130+60
Oct 21, 2026Viewing70-2
Oct 16, 202672+2
Oct 15, 202670-1
Oct 14, 202671+15
Oct 12, 2026560
Oct 09, 202656No prior observation