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Contract OI history

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Oct 23, 2026 EXPIRATION

AMPX $8.50 Put

AMPX261023P00008500

Latest saved OI165Oct 23, 2026
Last change+14vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
AMPX $8.50 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. 165820 2026-10-02: 85 OI2026-10-05: 86 OI2026-10-06: 94 OI2026-10-07: 95 OI2026-10-08: 95 OI2026-10-09: 135 OI2026-10-13: 150 OI2026-10-14: 150 OI2026-10-15: 150 OI2026-10-16: 143 OI2026-10-21: 151 OI2026-10-23: 165 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, 2026Viewing165+14
Oct 21, 2026151+8
Oct 16, 2026143-7
Oct 15, 20261500
Oct 14, 20261500
Oct 13, 2026150+15
Oct 09, 2026135+40
Oct 08, 2026950
Oct 07, 202695+1
Oct 06, 202694+8
Oct 05, 202686+1
Oct 02, 202685No prior observation