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Contract OI history

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Jan 15, 2027 EXPIRATION

AMPX $9.00 Put

AMPX270115P00009000

Latest saved OI1,342Oct 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 $9.00 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. 1,3426710 2026-10-02: 1,225 OI2026-10-05: 1,225 OI2026-10-06: 1,268 OI2026-10-07: 1,268 OI2026-10-08: 1,268 OI2026-10-09: 1,273 OI2026-10-13: 1,329 OI2026-10-14: 1,329 OI2026-10-15: 1,332 OI2026-10-16: 1,332 OI2026-10-21: 1,342 OI2026-10-23: 1,342 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, 2026Viewing1,3420
Oct 21, 20261,342+10
Oct 16, 20261,3320
Oct 15, 20261,332+3
Oct 14, 20261,3290
Oct 13, 20261,329+56
Oct 09, 20261,273+5
Oct 08, 20261,2680
Oct 07, 20261,2680
Oct 06, 20261,268+43
Oct 05, 20261,2250
Oct 02, 20261,225No prior observation