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Contract OI history

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Nov 20, 2026 EXPIRATION

NIO $3.50 Put

NIO261120P00003500

Latest saved OI349Oct 23, 2026
Last change+101vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
NIO $3.50 put open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 3491740 2026-10-21: 248 OI2026-10-23: 349 OI Oct 21, 2026Oct 23, 2026

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

NIO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing349+101
Oct 21, 2026248No prior observation