OITracker Cboe delayed data

Contract OI history

Back to ZS

Dec 18, 2026 EXPIRATION

ZS $170.00 Call

ZS261218C00170000

Latest saved OI628Oct 23, 2026
Last change-15vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZS $170.00 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. 6733360 2026-10-09: 673 OI2026-10-12: 653 OI2026-10-14: 647 OI2026-10-15: 647 OI2026-10-16: 648 OI2026-10-21: 643 OI2026-10-23: 628 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, 2026Viewing628-15
Oct 21, 2026643-5
Oct 16, 2026648+1
Oct 15, 20266470
Oct 14, 2026647-6
Oct 12, 2026653-20
Oct 09, 2026673No prior observation