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Contract OI history

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Dec 18, 2026 EXPIRATION

ZM $55.00 Put

ZM261218P00055000

Latest saved OI1,961Oct 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 $55.00 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. 1,9629810 2026-10-09: 1,962 OI2026-10-13: 1,961 OI2026-10-14: 1,961 OI2026-10-15: 1,961 OI2026-10-16: 1,961 OI2026-10-21: 1,961 OI2026-10-23: 1,961 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, 2026Viewing1,9610
Oct 21, 20261,9610
Oct 16, 20261,9610
Oct 15, 20261,9610
Oct 14, 20261,9610
Oct 13, 20261,961-1
Oct 09, 20261,962No prior observation