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Contract OI history

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Jan 21, 2028 EXPIRATION

AMPY $4.00 Put

AMPY280121P00004000

Latest saved OI650Oct 21, 2026
Last change0vs previous saved observation
Saved market days10Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
AMPY $4.00 put open interest history 10 saved observations from 2026-10-02 to 2026-10-21. Exact values and changes are listed in the table below. 6503250 2026-10-02: 650 OI2026-10-05: 650 OI2026-10-06: 650 OI2026-10-07: 650 OI2026-10-08: 650 OI2026-10-09: 650 OI2026-10-13: 650 OI2026-10-14: 650 OI2026-10-16: 650 OI2026-10-21: 650 OI Oct 02, 2026Oct 21, 2026

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

AMPY contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 21, 2026Viewing6500
Oct 16, 20266500
Oct 14, 20266500
Oct 13, 20266500
Oct 09, 20266500
Oct 08, 20266500
Oct 07, 20266500
Oct 06, 20266500
Oct 05, 20266500
Oct 02, 2026650No prior observation