OITracker Cboe delayed data

Contract OI history

Back to NOW

Dec 18, 2026 EXPIRATION

NOW $50.00 Put

NOW261218P00050000

Latest saved OI426Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
NOW $50.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 4422210 2026-10-02: 441 OI2026-10-05: 441 OI2026-10-06: 440 OI2026-10-07: 442 OI2026-10-08: 442 OI2026-10-09: 442 OI2026-10-13: 432 OI2026-10-14: 432 OI2026-10-15: 432 OI2026-10-16: 433 OI2026-10-21: 426 OI2026-10-23: 426 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, 20264260
Oct 21, 2026Viewing426-7
Oct 16, 2026433+1
Oct 15, 20264320
Oct 14, 20264320
Oct 13, 2026432-10
Oct 09, 20264420
Oct 08, 20264420
Oct 07, 2026442+2
Oct 06, 2026440-1
Oct 05, 20264410
Oct 02, 2026441No prior observation