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Contract OI history

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Dec 18, 2026 EXPIRATION

ARIS $22.50 Call

ARIS261218C00022500

Latest saved OI284Oct 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 $22.50 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. 2841420 2026-10-02: 154 OI2026-10-05: 154 OI2026-10-06: 154 OI2026-10-07: 154 OI2026-10-08: 152 OI2026-10-09: 152 OI2026-10-13: 152 OI2026-10-14: 209 OI2026-10-16: 284 OI2026-10-20: 284 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, 2026Viewing2840
Oct 16, 2026284+75
Oct 14, 2026209+57
Oct 13, 20261520
Oct 09, 20261520
Oct 08, 2026152-2
Oct 07, 20261540
Oct 06, 20261540
Oct 05, 20261540
Oct 02, 2026154No prior observation