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Contract OI history

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Jan 15, 2027 EXPIRATION

ARDX $4.00 Call

ARDX270115C00004000

Latest saved OI2,700Oct 20, 2026
Last change+12vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
ARDX $4.00 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. 2,7001,3500 2026-10-08: 2,546 OI2026-10-09: 2,556 OI2026-10-13: 2,611 OI2026-10-14: 2,658 OI2026-10-16: 2,688 OI2026-10-20: 2,700 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, 2026Viewing2,700+12
Oct 16, 20262,688+30
Oct 14, 20262,658+47
Oct 13, 20262,611+55
Oct 09, 20262,556+10
Oct 08, 20262,546No prior observation