OITracker Cboe delayed data

Contract OI history

Back to NIO

Jan 21, 2028 EXPIRATION

NIO $4.00 Call

NIO280121C00004000

Latest saved OI27,620Oct 23, 2026
Last change+887vs 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. 27,62013,8100 2026-10-02: 20,807 OI2026-10-05: 22,413 OI2026-10-06: 22,619 OI2026-10-07: 22,617 OI2026-10-08: 22,617 OI2026-10-09: 22,675 OI2026-10-13: 22,674 OI2026-10-14: 22,674 OI2026-10-15: 22,477 OI2026-10-16: 22,450 OI2026-10-21: 26,733 OI2026-10-23: 27,620 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, 2026Viewing27,620+887
Oct 21, 202626,733+4,283
Oct 16, 202622,450-27
Oct 15, 202622,477-197
Oct 14, 202622,6740
Oct 13, 202622,674-1
Oct 09, 202622,675+58
Oct 08, 202622,6170
Oct 07, 202622,617-2
Oct 06, 202622,619+206
Oct 05, 202622,413+1,606
Oct 02, 202620,807No prior observation