OITracker Cboe delayed data

Contract OI history

Back to ZM

Dec 18, 2026 EXPIRATION

ZM $100.00 Put

ZM261218P00100000

Latest saved OI512Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZM $100.00 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. 5232610 2026-10-09: 519 OI2026-10-13: 522 OI2026-10-14: 522 OI2026-10-15: 523 OI2026-10-16: 523 OI2026-10-21: 512 OI2026-10-23: 512 OI Oct 09, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

ZM contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 20265120
Oct 21, 2026Viewing512-11
Oct 16, 20265230
Oct 15, 2026523+1
Oct 14, 20265220
Oct 13, 2026522+3
Oct 09, 2026519No prior observation