OITracker Cboe delayed data

Contract OI history

Back to NOW

Jan 21, 2028 EXPIRATION

NOW $220.00 Call

NOW280121C00220000

Latest saved OI551Oct 23, 2026
Last change+5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
NOW $220.00 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. 5512750 2026-10-02: 467 OI2026-10-05: 468 OI2026-10-06: 470 OI2026-10-07: 470 OI2026-10-08: 470 OI2026-10-09: 470 OI2026-10-13: 466 OI2026-10-14: 466 OI2026-10-15: 481 OI2026-10-16: 479 OI2026-10-21: 546 OI2026-10-23: 551 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, 2026Viewing551+5
Oct 21, 2026546+67
Oct 16, 2026479-2
Oct 15, 2026481+15
Oct 14, 20264660
Oct 13, 2026466-4
Oct 09, 20264700
Oct 08, 20264700
Oct 07, 20264700
Oct 06, 2026470+2
Oct 05, 2026468+1
Oct 02, 2026467No prior observation