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Contract OI history

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Nov 20, 2026 EXPIRATION

ASPN $2.50 Call

ASPN261120C00002500

Latest saved OI47Oct 20, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ASPN $2.50 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. 47230 2026-10-02: 7 OI2026-10-05: 7 OI2026-10-06: 7 OI2026-10-07: 47 OI2026-10-08: 47 OI2026-10-09: 47 OI2026-10-13: 47 OI2026-10-14: 47 OI2026-10-16: 47 OI2026-10-20: 47 OI Oct 02, 2026Oct 20, 2026

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

ASPN contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing470
Oct 16, 2026470
Oct 14, 2026470
Oct 13, 2026470
Oct 09, 2026470
Oct 08, 2026470
Oct 07, 202647+40
Oct 06, 202670
Oct 05, 202670
Oct 02, 20267No prior observation