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Contract OI history

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Nov 20, 2026 EXPIRATION

AMPX $12.50 Put

AMPX261120P00012500

Latest saved OI8Oct 23, 2026
Last change+8vs previous saved observation
Saved market days2Oct 21, 2026 onwards
Daily open interest Hover a point for its date and OI
AMPX $12.50 put open interest history 2 saved observations from 2026-10-21 to 2026-10-23. Exact values and changes are listed in the table below. 840 2026-10-21: 0 OI2026-10-23: 8 OI Oct 21, 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, 2026Viewing8+8
Oct 21, 20260No prior observation