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Contract OI history

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Nov 20, 2026 EXPIRATION

IONS $40.00 Call

IONS261120C00040000

Latest saved OI115Oct 19, 2026
Last change0vs previous saved observation
Saved market days5Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
IONS $40.00 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. 115570 2026-10-09: 109 OI2026-10-13: 109 OI2026-10-14: 115 OI2026-10-16: 115 OI2026-10-19: 115 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, 2026Viewing1150
Oct 16, 20261150
Oct 14, 2026115+6
Oct 13, 20261090
Oct 09, 2026109No prior observation