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Contract OI history

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Jan 15, 2027 EXPIRATION

ASPN $2.50 Put

ASPN270115P00002500

Latest saved OI192Oct 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 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. 192960 2026-10-02: 192 OI2026-10-05: 192 OI2026-10-06: 192 OI2026-10-07: 192 OI2026-10-08: 192 OI2026-10-09: 192 OI2026-10-13: 192 OI2026-10-14: 192 OI2026-10-16: 192 OI2026-10-20: 192 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, 2026Viewing1920
Oct 16, 20261920
Oct 14, 20261920
Oct 13, 20261920
Oct 09, 20261920
Oct 08, 20261920
Oct 07, 20261920
Oct 06, 20261920
Oct 05, 20261920
Oct 02, 2026192No prior observation