AMTM · Stage, GEX levels and seasonality

Amentum Holdings, Inc. (AMTM)

Last close $18.12 (-0.17%) on 2026-09-30

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Weinstein stage

Stage 4A — Declining · 15 weeks in this stage · 30-week average $23.28

Stage 4 (declining): price stays below a falling 30-week average. The stage Weinstein avoids.

What would change it: Stage 1 begins when the 30-week SMA (23.28) stops declining and price starts closing above it.

GEX levels

Call wall, put wall and gamma flip for AMTM are on Signa plans. What GEX levels tell you.

Seasonality

MonthAverage returnMonths upYears
January+5.15%50%2
February-11.43%0%2
March-10.26%0%2
April+9.99%50%2
May-7.46%0%2
June+4.31%50%2
July+2.16%50%2
August-3.18%50%2
September-2.51%50%2
October (this month)+1.34%50%2
November+3.42%50%2
December-0.42%50%2

Based on up to 2 years of weekly closes. Past seasonality does not predict future returns.

On Signa plans

The Signa score and Action Card for AMTM, live options flow, dark pool prints, today's GEX levels with vanna and charm, and what 40+ AI agents say about it.

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Questions about AMTM

What Weinstein stage is AMTM in?

AMTM is in Stage 4A — Declining, for 15 weeks, based on completed weekly bars and its 30-week moving average (23.28).

How has AMTM done in October?

Over the last 2 years, AMTM averaged +1.34% in October and rose in 50% of them. Past seasonality does not predict future returns.

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