AMTM
Amentum Holdings, Inc.
NYSE · Industrials · Aerospace & Defense · US
$22.30
−0.38%Price chart
Oct 6Oct 9Oct 14Oct 19Oct 22Oct 27Oct 30Nov 4
Key dataNov 4, 2026
Open$22.32
From 52W high−40.59%
Volume164631.00
Market cap$5.45B
P/E (TTM)26.9x
P/S (TTM)0.4x
Div yield—
Key dataNov 4, 2026
Open
$22.32
From 52W high
−40.59%
Volume
164631.00
Market cap
$5.45B
ValuationView details →
P/E (Fwd)
8.6x
EV/EBITDA
9.6x
P/E (TTM)
26.9x
RSI (14)
71.3
MomentumView details →
1D Return
−0.38%
YTD Return
−21.69%
SummaryUpdated Jul 1, 2026
Amentum Holdings, Inc. (NYSE:AMTM) is a mission-critical technology services company that went public in September 2024. Founded in 2019 and headquartered in Chantilly, Virginia, Amentum emerged as a major government contractor following its 2024 merger with Jacobs Engineering Group's Critical Mission Solutions and Cyber & Intelligence divisions. The company now operates as one of the largest providers of advanced engineering and technology solutions to U.S. government agencies and commercial clients, with approximately 53,000 employees across 80 countries and a massive $45 billion contract backlog.
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Amentum Holdings, Inc. expanded its presence to a new facility at Catalyst Campus for Technology and Innovation in Colorado Springs to support defense and space operations.5d agoAmentum Holdings, Inc. opened its global nuclear headquarters in Oak Ridge, Tennessee, which will employ more than 150 subject-matter experts.24d agoAmentum Holdings, Inc. launched its Nuclear Scholars Program with Roane State Community College and the University of Tennessee at Knoxville, committing $500,000 over five years for curriculum and scholarships.24d ago