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Contract OI history

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Mar 19, 2027 EXPIRATION

AMPX $18.00 Put

AMPX270319P00018000

Latest saved OI1,078Oct 23, 2026
Last change0vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
AMPX $18.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 1,0785390 2026-10-02: 1,078 OI2026-10-05: 1,078 OI2026-10-06: 1,078 OI2026-10-07: 1,078 OI2026-10-08: 1,078 OI2026-10-09: 1,078 OI2026-10-13: 1,078 OI2026-10-14: 1,078 OI2026-10-15: 1,078 OI2026-10-16: 1,078 OI2026-10-21: 1,078 OI2026-10-23: 1,078 OI Oct 02, 2026Oct 23, 2026

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

AMPX contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing1,0780
Oct 21, 20261,0780
Oct 16, 20261,0780
Oct 15, 20261,0780
Oct 14, 20261,0780
Oct 13, 20261,0780
Oct 09, 20261,0780
Oct 08, 20261,0780
Oct 07, 20261,0780
Oct 06, 20261,0780
Oct 05, 20261,0780
Oct 02, 20261,078No prior observation