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Contract OI history

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Mar 19, 2027 EXPIRATION

ARCT $22.50 Call

ARCT270319C00022500

Latest saved OI18Oct 23, 2026
Last change0vs previous saved observation
Saved market days7Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
ARCT $22.50 call open interest history 7 saved observations from 2026-10-08 to 2026-10-23. Exact values and changes are listed in the table below. 1890 2026-10-08: 9 OI2026-10-09: 9 OI2026-10-13: 9 OI2026-10-14: 9 OI2026-10-16: 18 OI2026-10-20: 18 OI2026-10-23: 18 OI Oct 08, 2026Oct 23, 2026

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

ARCT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing180
Oct 20, 2026180
Oct 16, 202618+9
Oct 14, 202690
Oct 13, 202690
Oct 09, 202690
Oct 08, 20269No prior observation