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Contract OI history

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Mar 19, 2027 EXPIRATION

ARIS $22.50 Put

ARIS270319P00022500

Latest saved OI19Oct 20, 2026
Last change-3vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ARIS $22.50 put open interest history 10 saved observations from 2026-10-02 to 2026-10-20. Exact values and changes are listed in the table below. 22110 2026-10-02: 22 OI2026-10-05: 22 OI2026-10-06: 22 OI2026-10-07: 22 OI2026-10-08: 22 OI2026-10-09: 22 OI2026-10-13: 22 OI2026-10-14: 22 OI2026-10-16: 22 OI2026-10-20: 19 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, 2026Viewing19-3
Oct 16, 2026220
Oct 14, 2026220
Oct 13, 2026220
Oct 09, 2026220
Oct 08, 2026220
Oct 07, 2026220
Oct 06, 2026220
Oct 05, 2026220
Oct 02, 202622No prior observation