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Contract OI history

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Jan 21, 2028 EXPIRATION

ARDX $15.00 Call

ARDX280121C00015000

Latest saved OI600Oct 20, 2026
Last change+1vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
ARDX $15.00 call open interest history 6 saved observations from 2026-10-08 to 2026-10-20. Exact values and changes are listed in the table below. 6003000 2026-10-08: 598 OI2026-10-09: 598 OI2026-10-13: 598 OI2026-10-14: 598 OI2026-10-16: 599 OI2026-10-20: 600 OI Oct 08, 2026Oct 20, 2026

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

ARDX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing600+1
Oct 16, 2026599+1
Oct 14, 20265980
Oct 13, 20265980
Oct 09, 20265980
Oct 08, 2026598No prior observation