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Contract OI history

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Nov 20, 2026 EXPIRATION

APEI $40.00 Put

APEI261120P00040000

Latest saved OI67Oct 21, 2026
Last change+5vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
APEI $40.00 put open interest history 6 saved observations from 2026-10-08 to 2026-10-21. Exact values and changes are listed in the table below. 67330 2026-10-08: 1 OI2026-10-09: 1 OI2026-10-13: 37 OI2026-10-15: 42 OI2026-10-16: 62 OI2026-10-21: 67 OI Oct 08, 2026Oct 21, 2026

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

APEI contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 21, 2026Viewing67+5
Oct 16, 202662+20
Oct 15, 202642+5
Oct 13, 202637+36
Oct 09, 202610
Oct 08, 20261No prior observation