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Contract OI history

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Nov 20, 2026 EXPIRATION

NPO $290.00 Put

NPO261120P00290000

Latest saved OI500Oct 23, 2026
Last change0vs previous saved observation
Saved market days11Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
NPO $290.00 put open interest history 11 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 5012500 2026-10-02: 0 OI2026-10-05: 7 OI2026-10-06: 8 OI2026-10-07: 8 OI2026-10-08: 8 OI2026-10-09: 8 OI2026-10-13: 1 OI2026-10-14: 501 OI2026-10-16: 500 OI2026-10-20: 500 OI2026-10-23: 500 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

NPO contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing5000
Oct 20, 20265000
Oct 16, 2026500-1
Oct 14, 2026501+500
Oct 13, 20261-7
Oct 09, 202680
Oct 08, 202680
Oct 07, 202680
Oct 06, 20268+1
Oct 05, 20267+7
Oct 02, 20260No prior observation