OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

NIO $2.50 Call

NIO270115C00002500

Latest saved OI1,636Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
NIO $2.50 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. 1,6368180 2026-10-02: 1,549 OI2026-10-05: 1,553 OI2026-10-06: 1,553 OI2026-10-07: 1,553 OI2026-10-08: 1,553 OI2026-10-09: 1,562 OI2026-10-13: 1,562 OI2026-10-14: 1,562 OI2026-10-15: 1,561 OI2026-10-16: 1,561 OI2026-10-21: 1,636 OI2026-10-23: 1,636 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, 2026Viewing1,6360
Oct 21, 20261,636+75
Oct 16, 20261,5610
Oct 15, 20261,561-1
Oct 14, 20261,5620
Oct 13, 20261,5620
Oct 09, 20261,562+9
Oct 08, 20261,5530
Oct 07, 20261,5530
Oct 06, 20261,5530
Oct 05, 20261,553+4
Oct 02, 20261,549No prior observation