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Contract OI history

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Jan 21, 2028 EXPIRATION

ARDX $7.00 Call

ARDX280121C00007000

Latest saved OI641Oct 20, 2026
Last change+3vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
ARDX $7.00 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. 6413200 2026-10-08: 639 OI2026-10-09: 639 OI2026-10-13: 639 OI2026-10-14: 639 OI2026-10-16: 638 OI2026-10-20: 641 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, 2026Viewing641+3
Oct 16, 2026638-1
Oct 14, 20266390
Oct 13, 20266390
Oct 09, 20266390
Oct 08, 2026639No prior observation