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Contract OI history

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Jan 21, 2028 EXPIRATION

NOW $55.00 Put

NOW280121P00055000

Latest saved OI837Oct 23, 2026
Last change-13vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
NOW $55.00 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. 8584290 2026-10-02: 858 OI2026-10-05: 858 OI2026-10-06: 858 OI2026-10-07: 858 OI2026-10-08: 858 OI2026-10-09: 857 OI2026-10-13: 856 OI2026-10-14: 856 OI2026-10-15: 855 OI2026-10-16: 855 OI2026-10-21: 850 OI2026-10-23: 837 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, 2026837-13
Oct 21, 2026Viewing850-5
Oct 16, 20268550
Oct 15, 2026855-1
Oct 14, 20268560
Oct 13, 2026856-1
Oct 09, 2026857-1
Oct 08, 20268580
Oct 07, 20268580
Oct 06, 20268580
Oct 05, 20268580
Oct 02, 2026858No prior observation