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Contract OI history

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Dec 18, 2026 EXPIRATION

IONS $55.00 Call

IONS261218C00055000

Latest saved OI79Oct 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 $55.00 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. 79390 2026-10-09: 79 OI2026-10-13: 79 OI2026-10-14: 79 OI2026-10-16: 79 OI2026-10-19: 79 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, 2026Viewing790
Oct 16, 2026790
Oct 14, 2026790
Oct 13, 2026790
Oct 09, 202679No prior observation