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Contract OI history

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Dec 18, 2026 EXPIRATION

ARIS $17.50 Call

ARIS261218C00017500

Latest saved OI907Oct 20, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ARIS $17.50 call open interest history 10 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 9184590 2026-10-02: 918 OI2026-10-05: 917 OI2026-10-06: 917 OI2026-10-07: 917 OI2026-10-08: 917 OI2026-10-09: 917 OI2026-10-13: 908 OI2026-10-14: 908 OI2026-10-16: 907 OI2026-10-20: 907 OI Oct 02, 2026Oct 20, 2026

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

ARIS contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing9070
Oct 16, 2026907-1
Oct 14, 20269080
Oct 13, 2026908-9
Oct 09, 20269170
Oct 08, 20269170
Oct 07, 20269170
Oct 06, 20269170
Oct 05, 2026917-1
Oct 02, 2026918No prior observation