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Contract OI history

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Mar 19, 2027 EXPIRATION

ONON $27.50 Call

ONON270319C00027500

Latest saved OI1,649Oct 23, 2026
Last change-1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ONON $27.50 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. 2,8371,4180 2026-10-02: 2,837 OI2026-10-05: 2,761 OI2026-10-06: 1,650 OI2026-10-07: 1,650 OI2026-10-08: 1,650 OI2026-10-09: 1,648 OI2026-10-13: 1,651 OI2026-10-14: 1,651 OI2026-10-15: 1,649 OI2026-10-16: 1,649 OI2026-10-21: 1,650 OI2026-10-23: 1,649 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, 2026Viewing1,649-1
Oct 21, 20261,650+1
Oct 16, 20261,6490
Oct 15, 20261,649-2
Oct 14, 20261,6510
Oct 13, 20261,651+3
Oct 09, 20261,648-2
Oct 08, 20261,6500
Oct 07, 20261,6500
Oct 06, 20261,650-1,111
Oct 05, 20262,761-76
Oct 02, 20262,837No prior observation