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Contract OI history

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May 21, 2027 EXPIRATION

NIO $4.00 Call

NIO270521C00004000

Latest saved OI2,255Oct 23, 2026
Last change+223vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
NIO $4.00 call open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 2,2551,1270 2026-10-02: 175 OI2026-10-05: 208 OI2026-10-06: 354 OI2026-10-07: 1,695 OI2026-10-08: 1,695 OI2026-10-09: 1,704 OI2026-10-13: 1,704 OI2026-10-14: 1,704 OI2026-10-15: 1,726 OI2026-10-16: 1,732 OI2026-10-21: 2,032 OI2026-10-23: 2,255 OI Oct 02, 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, 2026Viewing2,255+223
Oct 21, 20262,032+300
Oct 16, 20261,732+6
Oct 15, 20261,726+22
Oct 14, 20261,7040
Oct 13, 20261,7040
Oct 09, 20261,704+9
Oct 08, 20261,6950
Oct 07, 20261,695+1,341
Oct 06, 2026354+146
Oct 05, 2026208+33
Oct 02, 2026175No prior observation