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Contract OI history

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Nov 20, 2026 EXPIRATION

AMPX $14.00 Put

AMPX261120P00014000

Latest saved OI425Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
AMPX $14.00 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. 4422210 2026-10-02: 421 OI2026-10-05: 437 OI2026-10-06: 437 OI2026-10-07: 437 OI2026-10-08: 437 OI2026-10-09: 437 OI2026-10-13: 436 OI2026-10-14: 436 OI2026-10-15: 437 OI2026-10-16: 442 OI2026-10-21: 424 OI2026-10-23: 425 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, 2026Viewing425+1
Oct 21, 2026424-18
Oct 16, 2026442+5
Oct 15, 2026437+1
Oct 14, 20264360
Oct 13, 2026436-1
Oct 09, 20264370
Oct 08, 20264370
Oct 07, 20264370
Oct 06, 20264370
Oct 05, 2026437+16
Oct 02, 2026421No prior observation