Contract OI history

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Nov 20, 2026 EXPIRATION

AMPX $18.00 Put

AMPX261120P00018000

Latest saved OI27Oct 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. 137680 2026-10-02: 137 OI2026-10-05: 137 OI2026-10-06: 137 OI2026-10-07: 137 OI2026-10-08: 137 OI2026-10-09: 137 OI2026-10-13: 130 OI2026-10-14: 130 OI2026-10-15: 27 OI2026-10-16: 27 OI2026-10-21: 27 OI2026-10-23: 27 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, 2026Viewing270
Oct 21, 2026270
Oct 16, 2026270
Oct 15, 202627-103
Oct 14, 20261300
Oct 13, 2026130-7
Oct 09, 20261370
Oct 08, 20261370
Oct 07, 20261370
Oct 06, 20261370
Oct 05, 20261370
Oct 02, 2026137No prior observation