TOP TIERMARKET NEWSWIRE
Movers explained · 2026-08-12

Archived explainer. For the current picture see today's AMTM page.

Why Is AMENTUM HLDGS INC EQ (AMTM) Stock Down Today?

By the Top Tier Newswire AI Desk · August 12, 2026 at 12:22 AM ET · reviewed against 11 wire stories

AMENTUM HLDGS INC EQ (AMTM) is down -8.22% in the latest session. Our newswire has captured 11 stories on AMTM across 6 sources in the last 36 hours, with AI sentiment reading mixed (avg 57/100).

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Why AMTM stock is down today

Amentum Holdings Inc (AMTM) fell 8.22% to $22.43 in early trading on Monday, marking one of the day's largest declines. The drop followed a mixed earnings report that highlighted both strong profitability and cash generation, alongside a revenue miss and downward revisions to guidance for fiscal 2026. The stock also faced pressure after Morgan Stanley lowered its price target from $30 to $24.

What Happened

Amentum reported third-quarter fiscal 2026 revenue of $3.5 billion, a 1.7% decline from the same period a year ago and below the $3.86 billion estimate. While the company raised its full-year adjusted EBITDA forecast, it also reduced its FY26 revenue outlook to $13.8 billion to $13.95 billion, below the $14.14 billion estimate. The firm also updated its FY26 adjusted EPS guidance to a range of $2.40 to $2.50, slightly below the $2.42 estimate. The company attributed a 3% revenue impact in FY27 to NASA-related factors.

Morgan Stanley cut its price target for AMTM to $24 from $30, signaling a bearish shift in its outlook. The stock's decline also came amid a broader market environment where the S&P 500 approached record levels and investors weighed the likelihood of a Federal Reserve rate hike before the next CPI report.

What The Data Shows

The stock is trading within its 52-week range of $19.80 to $38.11, with a market cap of $5.8 billion. It has a P/E ratio of 41.3 and trailing twelve-month revenue growth of 26.1%. The stock’s net margin remains at 1.0%, and the recent drop brought volume to levels significantly above its 20-day average. No unusual options activity or insider transactions were reported in the last 90 days.

What To Watch

Amentum’s updated guidance and the revised price target from Morgan Stanley will be closely followed by investors. The company’s ability to meet its new revenue and EPS targets in the remainder of the fiscal year will be key to the stock’s near-term direction.

AI-assisted analysis composed exclusively from headlines and data on the Top Tier newswire. Public view is delayed 4 hours from real time. Not financial advice.

AMTM by the numbers

Last: $22.43Session: -8.22%Coverage: 11 stories / 6 sourcesAI sentiment: 57/100 (mixed)Mkt cap: $5.8BP/E: 41.352w: $19.80 to $38.11
AI sentiment, last 36h · averaged over 11 stories · 57/100 bullish
AI sentiment 57/100 (bullish)0 · bearish50bullish · 100

The headlines behind the move

Story flow · 8 stories on the wire, last 36h · hover or tap a dot for the headline
36h ago24h ago12h agopublishSEC 8-K · sentiment 50 · Amentum Holdings, Inc. (AMTM) files 8-KSEC 8-K · 50Amentum Holdings, Inc. (AMTM) files 8-KSeeking Alpha · sentiment 38 · Amentum Holdings misses top-line estimates; updates FY26 outlookSeeking Alpha · 38Amentum Holdings misses top-line estimates; updates FY26 outlookMarketChameleon · sentiment 73 · Margin Expansion, Strong Backlog Drive Amentum’s Third Quarter Gains—Guidance Ticks Higher August 11, 2026MarketChameleon · 73Margin Expansion, Strong Backlog Drive Amentum’s Third Quarter Gains—Guidance Ticks Highe…Seeking Alpha · sentiment 50 · Amentum Holdings, Inc. 2026 Q3 - Results - Earnings Call PresentationSeeking Alpha · 50Amentum Holdings, Inc. 2026 Q3 - Results - Earnings Call PresentationYahoo Top · sentiment 67 · Amentum Q3 Earnings Call HighlightsYahoo Top · 67Amentum Q3 Earnings Call HighlightsSeeking Alpha · sentiment 50 · Amentum Holdings, Inc. (AMTM) Q3 2026 Earnings Call TranscriptSeeking Alpha · 50Amentum Holdings, Inc. (AMTM) Q3 2026 Earnings Call TranscriptSeeking Alpha · sentiment 67 · Amentum anticipates 3% NASA revenue impact in FY27 while lifting FY26 EPS outlook to $2.40-$2.50Seeking Alpha · 67Amentum anticipates 3% NASA revenue impact in FY27 while lifting FY26 EPS outlook to $2.4…The Fly · sentiment 34 · Amentum Price Target Lowered To 24 From 30 At Morgan StanleyThe Fly · 34Amentum Price Target Lowered To 24 From 30 At Morgan Stanley
13h agoThe FlyBEARISH 34Analyst

Amentum Price Target Lowered To 24 From 30 At Morgan Stanley

14h agoSeeking AlphaBULLISH 67Earnings

Amentum anticipates 3% NASA revenue impact in FY27 while lifting FY26 EPS outlook to $2.40-$2.50

Amentum (AMTM) Q3 FY2026 earnings call recap: guidance updates, backlog/bookings, margin & cash strength, NASA revenue impact and nuclear growth.

14h agoSeeking AlphaNEUTRAL 50Earnings

Amentum Holdings, Inc. (AMTM) Q3 2026 Earnings Call Transcript

Amentum Holdings, Inc. (AMTM) Q3 2026 Earnings Call August 11, 2026 8:30 AM EDTCompany ParticipantsJoseph DeNardi - Senior VP & Head of Investor...

15h agoYahoo TopBULLISH 67Earnings

Amentum Q3 Earnings Call Highlights

Amentum (NYSE:AMTM) reported third-quarter fiscal 2026 revenue of $3.5 billion, with normalized growth of about 1%, while higher profitability and cash generation led the company to raise its full-year adjusted EBITDA and adjusted earnings-per-share outlook. Chief Executive Officer John Heller said

19h agoSeeking AlphaNEUTRAL 50Earnings

Amentum Holdings, Inc. 2026 Q3 - Results - Earnings Call Presentation

2026-08-11. The following slide deck was published by Amentum Holdings, Inc.

20h agoMarketChameleonBULLISH 73Earnings

Margin Expansion, Strong Backlog Drive Amentum’s Third Quarter Gains—Guidance Ticks Higher August 11, 2026

1d agoSeeking AlphaBEARISH 38Earnings

Amentum Holdings misses top-line estimates; updates FY26 outlook

Amentum Holdings press release (AMTM): Q3 Non-GAAP EPS of $0.67 in-line. Revenue of $3.5B (-1.7% Y/Y) misses by $360M.

1d agoSEC 8-KNEUTRAL 50General

Amentum Holdings, Inc. (AMTM) files 8-K

Filed: 2026-08-10 AccNo: 0001628280-26-055294 Size: 1 MB Item 2.02: Results of Operations and Financial Condition Item 9.01: Financial Statements and Exhibits

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More on AMTM: full news and sentiment history. Sentiment scores are AI-derived research signals, not financial advice.

Earlier AMTM move explainers: 2026-08-12 · 2026-08-11 · 2026-07-27 · 2026-07-21 · 2026-07-20