OITracker Cboe delayed data

Contract OI history

Back to ZS

Nov 20, 2026 EXPIRATION

ZS $170.00 Put

ZS261120P00170000

Latest saved OI733Oct 23, 2026
Last change-45vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZS $170.00 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. 7783890 2026-10-09: 592 OI2026-10-12: 597 OI2026-10-14: 535 OI2026-10-15: 535 OI2026-10-16: 745 OI2026-10-21: 778 OI2026-10-23: 733 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, 2026733-45
Oct 21, 2026Viewing778+33
Oct 16, 2026745+210
Oct 15, 20265350
Oct 14, 2026535-62
Oct 12, 2026597+5
Oct 09, 2026592No prior observation