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Contract OI history

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Nov 20, 2026 EXPIRATION

ASC $17.50 Call

ASC261120C00017500

Latest saved OI66Oct 21, 2026
Last change+26vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ASC $17.50 call open interest history 10 saved observations from 2026-10-02 to 2026-10-21. Exact values and changes are listed in the table below. 66330 2026-10-02: 23 OI2026-10-05: 23 OI2026-10-06: 23 OI2026-10-07: 23 OI2026-10-08: 23 OI2026-10-09: 39 OI2026-10-13: 39 OI2026-10-14: 39 OI2026-10-16: 40 OI2026-10-21: 66 OI Oct 02, 2026Oct 21, 2026

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

ASC contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 21, 2026Viewing66+26
Oct 16, 202640+1
Oct 14, 2026390
Oct 13, 2026390
Oct 09, 202639+16
Oct 08, 2026230
Oct 07, 2026230
Oct 06, 2026230
Oct 05, 2026230
Oct 02, 202623No prior observation