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Contract OI history

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Nov 20, 2026 EXPIRATION

AMPG $2.50 Put

AMPG261120P00002500

Latest saved OI209Oct 20, 2026
Last change+51vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
AMPG $2.50 put open interest history 6 saved observations from 2026-10-08 to 2026-10-20. Exact values and changes are listed in the table below. 2091040 2026-10-08: 44 OI2026-10-09: 44 OI2026-10-13: 44 OI2026-10-14: 44 OI2026-10-16: 158 OI2026-10-20: 209 OI Oct 08, 2026Oct 20, 2026

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

AMPG contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 20, 2026Viewing209+51
Oct 16, 2026158+114
Oct 14, 2026440
Oct 13, 2026440
Oct 09, 2026440
Oct 08, 202644No prior observation