OITracker Cboe delayed data

Contract OI history

Back to NOW

Dec 18, 2026 EXPIRATION

NOW $175.00 Call

NOW261218C00175000

Latest saved OI1,723Oct 23, 2026
Last change+285vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
NOW $175.00 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. 1,7238610 2026-10-02: 1,462 OI2026-10-05: 1,462 OI2026-10-06: 1,322 OI2026-10-07: 1,322 OI2026-10-08: 1,322 OI2026-10-09: 1,326 OI2026-10-13: 1,308 OI2026-10-14: 1,308 OI2026-10-15: 1,307 OI2026-10-16: 1,351 OI2026-10-21: 1,438 OI2026-10-23: 1,723 OI Oct 02, 2026Oct 23, 2026

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

NOW contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,723+285
Oct 21, 20261,438+87
Oct 16, 20261,351+44
Oct 15, 20261,307-1
Oct 14, 20261,3080
Oct 13, 20261,308-18
Oct 09, 20261,326+4
Oct 08, 20261,3220
Oct 07, 20261,3220
Oct 06, 20261,322-140
Oct 05, 20261,4620
Oct 02, 20261,462No prior observation