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Contract OI history

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Nov 20, 2026 EXPIRATION

ZM $77.50 Put

ZM261120P00077500

Latest saved OI329Oct 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 $77.50 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. 3291640 2026-10-09: 327 OI2026-10-13: 325 OI2026-10-14: 325 OI2026-10-15: 325 OI2026-10-16: 325 OI2026-10-21: 329 OI2026-10-23: 329 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, 20263290
Oct 21, 2026Viewing329+4
Oct 16, 20263250
Oct 15, 20263250
Oct 14, 20263250
Oct 13, 2026325-2
Oct 09, 2026327No prior observation