AMTM Stock — Amentum Holdings, Inc.

Amentum Holdings, Inc. (AMTM)

Updated October 16, 2026.

AMTM is a Stock. Total return is -33.9% over the past 2.1 years, 70.6 points behind SPY at 36.7%.

Amentum Holdings is an engineering and technology company serving U.S. federal government and commercial clients through two business segments: Digital Solutions, which provides intelligence analytics, space system development, cybersecurity, and IT services; and Global Engineering Solutions, which delivers environmental remediation, nuclear power solutions, platform engineering, and supply chain management. The company does not currently have an established distribution schedule. Amentum operates from its headquarters in Chantilly, Virginia, and serves the federal government and allied nations alongside commercial clients.

AMTM performance versus SPY

Price and return data through 2026-10-16.

Total return is -33.9% over the past 2.1 years, 70.6 points behind SPY at 36.7%. Over the past year its total return — price change plus distributions reinvested — is -13.9%. Its deepest 1-year drawdown was 51.7%.

AMTM key facts

Asset type

Stock

Asset class

Equity

Inception date

09/24/2024

Distribution frequency

None

Last close

$19.52 (as of 2026-10-16)

Market cap

$4,772,765,182

Average volume

2088703.0

Beta

0.311

Payout ratio

0.0%

P/E ratio

23.52

Forward P/E

7.4683

EPS

$0.83

How Dividend Vision calculates yield and returns

Distribution rate (the posted rate) uses calculation basis unavailable. Issuer rates can use a different denominator and date, including ex-date NAV. Trailing-12-month yield is the sum of split-adjusted cash distributions with ex-dates in the last 12 months, divided by the published price. It lags a recent raise or cut. Total return uses split-adjusted close with distributions reinvested on the ex-dividend date (a modeling convention, not the cash-settlement date) from the first stored bar on or after inception through the latest bar, compared with the same window on the benchmark. That is the security's total return, not your personal gain/loss.

Yield and safety methodology · Distribution rate methodology · Distribution Safety Score methodology

Sources and review

Primary sources: prices and distributions from Dividend Vision, derived from vendor EOD data.

Reviewed by Bert Sweet, CEO and Co-owner of Dividend Vision. Methodology: Distribution Safety Score.

AMTM risks and drawbacks

Total return has trailed SPY over the available window. The deepest 1-year drawdown on record here is 51.7%.

Who may consider AMTM — and who may not

It is a weaker fit for investors who need monthly cash flow (AMTM does not currently distribute); investors whose main goal is matching SPY total return. This is educational context, not a recommendation to buy or sell.

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