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Contract OI history

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Oct 23, 2026 EXPIRATION

AMPG $3.50 Put

AMPG261023P00003500

Latest saved OI47Oct 20, 2026
Last change-6vs previous saved observation
Saved market days6Oct 08, 2026 onwards
Daily open interest Hover a point for its date and OI
AMPG $3.50 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. 54270 2026-10-08: 54 OI2026-10-09: 54 OI2026-10-13: 54 OI2026-10-14: 54 OI2026-10-16: 53 OI2026-10-20: 47 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, 2026Viewing47-6
Oct 16, 202653-1
Oct 14, 2026540
Oct 13, 2026540
Oct 09, 2026540
Oct 08, 202654No prior observation