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Contract OI history

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Mar 19, 2027 EXPIRATION

ONON $37.50 Call

ONON270319C00037500

Latest saved OI268Oct 23, 2026
Last change+26vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ONON $37.50 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. 2681340 2026-10-02: 230 OI2026-10-05: 231 OI2026-10-06: 232 OI2026-10-07: 231 OI2026-10-08: 231 OI2026-10-09: 234 OI2026-10-13: 235 OI2026-10-14: 235 OI2026-10-15: 235 OI2026-10-16: 235 OI2026-10-21: 242 OI2026-10-23: 268 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, 2026Viewing268+26
Oct 21, 2026242+7
Oct 16, 20262350
Oct 15, 20262350
Oct 14, 20262350
Oct 13, 2026235+1
Oct 09, 2026234+3
Oct 08, 20262310
Oct 07, 2026231-1
Oct 06, 2026232+1
Oct 05, 2026231+1
Oct 02, 2026230No prior observation