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Contract OI history

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Jan 15, 2027 EXPIRATION

ASPN $12.50 Call

ASPN270115C00012500

Latest saved OI523Oct 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 $12.50 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. 5232610 2026-10-02: 523 OI2026-10-05: 523 OI2026-10-06: 523 OI2026-10-07: 523 OI2026-10-08: 523 OI2026-10-09: 523 OI2026-10-13: 523 OI2026-10-14: 523 OI2026-10-16: 523 OI2026-10-20: 523 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, 2026Viewing5230
Oct 16, 20265230
Oct 14, 20265230
Oct 13, 20265230
Oct 09, 20265230
Oct 08, 20265230
Oct 07, 20265230
Oct 06, 20265230
Oct 05, 20265230
Oct 02, 2026523No prior observation