Massivemarkets

AMTM

Amentum Holdings, Inc.

NYSE · usd

$22.73-0.40 (-1.73%)
At close · 15-minute delayed
$22.71-0.02 (-0.09%)
As of 7:52:55 PM EST on Nov 11, 2026 · After hours

Amentum Holdings, Inc. (AMTM) trades at $22.73 (-1.73%) as of 7:52:55 PM EST on Nov 11, 2026, +22.73% over the past month. Market cap is $5.66B, with 7.2 days to cover in short interest.

Stock performance

How Amentum Holdings, Inc. (AMTM) stock has performed from one day to one year, with its 52-week range.

-1.24%
-$0.28 over 1D
$22.35$22.64$22.94$23.234:00 AM11:00 AM12:50 PM2:35 PM8:00 PM$22.61
1D
-1.73%
1W
+2.25%
1M
+22.73%
YTD
-21.62%
1Y
-1.00%
52-wk range
$17.72 – $38.11

Key statistics

Today's trading snapshot for AMTM: day range, open, previous close, volume and market cap.

Day range
$22.42 – $23.16
Open
$23.16
Prev close
$23.13
Volume
1.38M
Market cap
$5.66B
Shares out
244.51M

Valuation and profitability ratios: P/E, P/S, ROE

Valuation and profitability ratios for Amentum Holdings, Inc.: P/E, P/S, P/B, ROE and more.

P/E
27.72
P/S
0.40
P/B
1.20
P/FCF
11.93
ROE
4.3%
ROA
1.8%
Debt/Equity
0.81
Div yield
0.00%

As of Nov 10, 2026

8-K filings

Material corporate events Amentum Holdings, Inc. has disclosed to the SEC on Form 8-K.

  • Executive compensation changeOct 2, 2026

    The Board of Directors of Amentum Holdings, Inc. approved an amendment and restatement of Steven J. Demetriou's, the Executive Chair of the Amentum Holdings Board of Directors, employment agreement with the Company. Under the Employment Agreement, effective September 28, 2026, Mr. Demetriou's base salary is $625,000 while his bonus/short-term incentive is 100% of his base salary. In addition, his long-term incentive (LTI) opportunity is a total intended target value at grant of $1,250,000; the agreement was amended to remove severance obligations, except for a pro-rata bonus and full accelerated vesting of outstanding LTI awards.

  • Debt retirementApr 28, 2026

    Amentum, Amentum Services and Amentum Technology used the proceeds of the term facilities, together with other cash on hand of Amentum and its subsidiaries, to repay in full all outstanding borrowings and other amounts under the Existing Credit Agreement and to pay fees and expenses related to the financing.

  • Annual meeting resultsFeb 10, 2026

    The Annual Meeting of Stockholders of Amentum Holdings, Inc. was held on February 6, 2026. At the annual meeting, Amentum's stockholders voted on the following three proposals and cast their votes as described below. The individuals listed below were elected at the Annual Meeting to serve as directors of the Company until the next annual meeting of shareholders.

  • Strategic initiativeMar 7, 2025

    effective during the three months ended December 27, 2024, the Company announced the realignment of our reporting structure, which resulted in the identification of two reportable segments: Digital Solutions and Global Engineering Solutions.

  • Annual meeting resultsMar 7, 2025

    The Annual Meeting of Stockholders of Amentum Holdings, Inc. was held on March 5, 2025. At the annual meeting, Amentum's stockholders voted on the following four proposals... The individuals listed below were elected at the Annual Meeting to serve as directors of the Company until the next annual meeting of shareholders.

AMTM short interest

How heavily AMTM is shorted: shares short, days to cover and average daily volume.

Days to cover
7.2
Short interest
14.05M
Avg volume
1.95M

As of · reported to FINRA twice monthly.

AMTM news

The latest news and headlines about Amentum Holdings, Inc. (AMTM).

Frequently asked questions

What is the Amentum Holdings, Inc. (AMTM) stock price today?

Amentum Holdings, Inc. (AMTM) is trading at $22.73 (-1.73% on the day) as of 7:52:55 PM EST on Nov 11, 2026. Prices are delayed at least 15 minutes; real-time quotes are available from the Massive API.

What is Amentum Holdings, Inc.?

Amentum Holdings Inc is an engineering and technology solutions provider serving U.S. and allied government agencies, as well as international and commercial customers across energy and environmental, intelligence, space, defense, civilian and commercial markets.

What is the short interest in AMTM?

As of Oct 30, 2026, AMTM has 14.05M shares short and 7.2 days to cover.

What exchange is AMTM listed on?

Amentum Holdings, Inc. (AMTM) trades on NYSE in USD, in the SERVICES-BUSINESS SERVICES, NEC industry.

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