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Contract OI history

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Jan 15, 2027 EXPIRATION

ONON $27.50 Call

ONON270115C00027500

Latest saved OI4,236Oct 23, 2026
Last change-2vs 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. 4,2412,1200 2026-10-02: 4,241 OI2026-10-05: 4,238 OI2026-10-06: 4,238 OI2026-10-07: 4,238 OI2026-10-08: 4,238 OI2026-10-09: 4,240 OI2026-10-13: 4,240 OI2026-10-14: 4,240 OI2026-10-15: 4,240 OI2026-10-16: 4,239 OI2026-10-21: 4,238 OI2026-10-23: 4,236 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, 2026Viewing4,236-2
Oct 21, 20264,238-1
Oct 16, 20264,239-1
Oct 15, 20264,2400
Oct 14, 20264,2400
Oct 13, 20264,2400
Oct 09, 20264,240+2
Oct 08, 20264,2380
Oct 07, 20264,2380
Oct 06, 20264,2380
Oct 05, 20264,238-3
Oct 02, 20264,241No prior observation