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Contract OI history

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Jan 15, 2027 EXPIRATION

ASPN $5.00 Put

ASPN270115P00005000

Latest saved OI807Oct 20, 2026
Last change+25vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
ASPN $5.00 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. 8074030 2026-10-02: 781 OI2026-10-05: 781 OI2026-10-06: 781 OI2026-10-07: 781 OI2026-10-08: 781 OI2026-10-09: 781 OI2026-10-13: 782 OI2026-10-14: 782 OI2026-10-16: 782 OI2026-10-20: 807 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, 2026Viewing807+25
Oct 16, 20267820
Oct 14, 20267820
Oct 13, 2026782+1
Oct 09, 20267810
Oct 08, 20267810
Oct 07, 20267810
Oct 06, 20267810
Oct 05, 20267810
Oct 02, 2026781No prior observation