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Contract OI history

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Nov 20, 2026 EXPIRATION

IONS $52.50 Call

IONS261120C00052500

Latest saved OI90Oct 19, 2026
Last change-28vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
IONS $52.50 call open interest history 5 saved observations from 2026-10-09 to 2026-10-19. Exact values and changes are listed in the table below. 118590 2026-10-09: 52 OI2026-10-13: 118 OI2026-10-14: 118 OI2026-10-16: 118 OI2026-10-19: 90 OI Oct 09, 2026Oct 19, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

IONS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 19, 2026Viewing90-28
Oct 16, 20261180
Oct 14, 20261180
Oct 13, 2026118+66
Oct 09, 202652No prior observation