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Contract OI history

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Nov 20, 2026 EXPIRATION

ZM $97.50 Put

ZM261120P00097500

Latest saved OI238Oct 21, 2026
Last change+12vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ZM $97.50 put open interest history 6 saved observations from 2026-10-09 to 2026-10-21. Exact values and changes are listed in the table below. 2381190 2026-10-09: 225 OI2026-10-13: 226 OI2026-10-14: 226 OI2026-10-15: 226 OI2026-10-16: 226 OI2026-10-21: 238 OI Oct 09, 2026Oct 21, 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 21, 2026Viewing238+12
Oct 16, 20262260
Oct 15, 20262260
Oct 14, 20262260
Oct 13, 2026226+1
Oct 09, 2026225No prior observation