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Contract OI history

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Dec 18, 2026 EXPIRATION

ONON $20.00 Put

ONON261218P00020000

Latest saved OI1,570Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ONON $20.00 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. 1,5967980 2026-10-02: 1,596 OI2026-10-05: 1,596 OI2026-10-06: 1,581 OI2026-10-07: 1,581 OI2026-10-08: 1,581 OI2026-10-09: 1,571 OI2026-10-13: 1,571 OI2026-10-14: 1,571 OI2026-10-15: 1,571 OI2026-10-16: 1,571 OI2026-10-21: 1,570 OI2026-10-23: 1,570 OI Oct 02, 2026Oct 23, 2026

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

ONON contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,5700
Oct 21, 20261,570-1
Oct 16, 20261,5710
Oct 15, 20261,5710
Oct 14, 20261,5710
Oct 13, 20261,5710
Oct 09, 20261,571-10
Oct 08, 20261,5810
Oct 07, 20261,5810
Oct 06, 20261,581-15
Oct 05, 20261,5960
Oct 02, 20261,596No prior observation