OITracker Cboe delayed data

Contract OI history

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Jan 21, 2028 EXPIRATION

NOW $50.00 Put

NOW280121P00050000

Latest saved OI2,255Oct 23, 2026
Last change-3vs 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. 2,2621,1310 2026-10-02: 2,259 OI2026-10-05: 2,260 OI2026-10-06: 2,260 OI2026-10-07: 2,259 OI2026-10-08: 2,259 OI2026-10-09: 2,257 OI2026-10-13: 2,262 OI2026-10-14: 2,262 OI2026-10-15: 2,260 OI2026-10-16: 2,260 OI2026-10-21: 2,258 OI2026-10-23: 2,255 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, 2026Viewing2,255-3
Oct 21, 20262,258-2
Oct 16, 20262,2600
Oct 15, 20262,260-2
Oct 14, 20262,2620
Oct 13, 20262,262+5
Oct 09, 20262,257-2
Oct 08, 20262,2590
Oct 07, 20262,259-1
Oct 06, 20262,2600
Oct 05, 20262,260+1
Oct 02, 20262,259No prior observation