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Contract OI history

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Jan 21, 2028 EXPIRATION

ASPI $5.00 Put

ASPI280121P00005000

Latest saved OI1,351Oct 23, 2026
Last change-2vs previous saved observation
Saved market days6Oct 09, 2026 onwards
Daily open interest Hover a point for its date and OI
ASPI $5.00 put open interest history 6 saved observations from 2026-10-09 to 2026-10-23. Exact values and changes are listed in the table below. 1,3536760 2026-10-09: 1,346 OI2026-10-13: 1,352 OI2026-10-14: 1,352 OI2026-10-16: 1,345 OI2026-10-20: 1,353 OI2026-10-23: 1,351 OI Oct 09, 2026Oct 23, 2026

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

ASPI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,351-2
Oct 20, 20261,353+8
Oct 16, 20261,345-7
Oct 14, 20261,3520
Oct 13, 20261,352+6
Oct 09, 20261,346No prior observation