OITracker Cboe delayed data

Contract OI history

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Jan 15, 2027 EXPIRATION

NOW $220.00 Call

NOW270115C00220000

Latest saved OI1,575Oct 23, 2026
Last change+94vs 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. 1,5757870 2026-10-02: 1,370 OI2026-10-05: 1,370 OI2026-10-06: 1,401 OI2026-10-07: 1,401 OI2026-10-08: 1,401 OI2026-10-09: 1,401 OI2026-10-13: 1,391 OI2026-10-14: 1,391 OI2026-10-15: 1,392 OI2026-10-16: 1,410 OI2026-10-21: 1,481 OI2026-10-23: 1,575 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, 2026Viewing1,575+94
Oct 21, 20261,481+71
Oct 16, 20261,410+18
Oct 15, 20261,392+1
Oct 14, 20261,3910
Oct 13, 20261,391-10
Oct 09, 20261,4010
Oct 08, 20261,4010
Oct 07, 20261,4010
Oct 06, 20261,401+31
Oct 05, 20261,3700
Oct 02, 20261,370No prior observation