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Contract OI history

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Jan 21, 2028 EXPIRATION

ONON $17.50 Call

ONON280121C00017500

Latest saved OI188Oct 23, 2026
Last change-5vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ONON $17.50 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. 2621310 2026-10-02: 262 OI2026-10-05: 261 OI2026-10-06: 258 OI2026-10-07: 258 OI2026-10-08: 258 OI2026-10-09: 200 OI2026-10-13: 195 OI2026-10-14: 195 OI2026-10-15: 195 OI2026-10-16: 195 OI2026-10-21: 193 OI2026-10-23: 188 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, 2026Viewing188-5
Oct 21, 2026193-2
Oct 16, 20261950
Oct 15, 20261950
Oct 14, 20261950
Oct 13, 2026195-5
Oct 09, 2026200-58
Oct 08, 20262580
Oct 07, 20262580
Oct 06, 2026258-3
Oct 05, 2026261-1
Oct 02, 2026262No prior observation