OITracker Cboe delayed data

Contract OI history

Back to NOW

Dec 18, 2026 EXPIRATION

NOW $300.00 Call

NOW261218C00300000

Latest saved OI2,626Oct 23, 2026
Last change-2vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
NOW $300.00 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. 2,6281,3140 2026-10-02: 2,586 OI2026-10-05: 2,586 OI2026-10-06: 2,588 OI2026-10-07: 2,590 OI2026-10-08: 2,590 OI2026-10-09: 2,588 OI2026-10-13: 2,588 OI2026-10-14: 2,588 OI2026-10-15: 2,588 OI2026-10-16: 2,588 OI2026-10-21: 2,628 OI2026-10-23: 2,626 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, 20262,626-2
Oct 21, 2026Viewing2,628+40
Oct 16, 20262,5880
Oct 15, 20262,5880
Oct 14, 20262,5880
Oct 13, 20262,5880
Oct 09, 20262,588-2
Oct 08, 20262,5900
Oct 07, 20262,590+2
Oct 06, 20262,588+2
Oct 05, 20262,5860
Oct 02, 20262,586No prior observation