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Contract OI history

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Sep 17, 2027 EXPIRATION

ONON $27.50 Call

ONON270917C00027500

Latest saved OI122Oct 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 $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. 129640 2026-10-02: 36 OI2026-10-05: 129 OI2026-10-06: 129 OI2026-10-07: 129 OI2026-10-08: 129 OI2026-10-09: 129 OI2026-10-13: 124 OI2026-10-14: 124 OI2026-10-15: 124 OI2026-10-16: 124 OI2026-10-21: 122 OI2026-10-23: 122 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, 2026Viewing1220
Oct 21, 2026122-2
Oct 16, 20261240
Oct 15, 20261240
Oct 14, 20261240
Oct 13, 2026124-5
Oct 09, 20261290
Oct 08, 20261290
Oct 07, 20261290
Oct 06, 20261290
Oct 05, 2026129+93
Oct 02, 202636No prior observation