Insider buying last 90 days
No open-market insider purchases were filed for AMTM in the last 90 days.
From Form 4 filings, dated to when each was filed.
Every AMTM insider filing, plotted on the chart in Gekko.Open AMTM in Gekko
NYSE: AMTM
Amentum (AMTM) Stock Analysis & Forecast
Sep 28 close
$18.49−0.70 (−3.6%)
Gekko Brief
AI summaryAmentum shares touched a 52-week low of $19.18 this week amid a broader six-month decline, though coverage notes that recent Q3 2026 results exceeded expectations and included a significant NASA contract win. Brokerage sentiment remains mixed: an average rating of "Hold" reflects one sell, seven hold and five buy ratings among thirteen brokerages tracked, alongside separate analyst figures showing 3 buy and 5 hold ratings among 8 firms with a consensus target of $29.58, implying 60% upside.
The stock closed at $18.49, down 3.6% on the day, and sits below both its 50-day average of $21.05 and 200-day average of $25.79, with the 50-day below the 200-day. Returns over the past month, three months, six months and one year are all negative, ranging from -9.5% to -28.4%. The GekkoIndex reads 67.2, placing the stock in the Accumulation zone, while price sits 47.3% below Gekko Fair Value of $35.07.
Looking ahead, the next earnings date falls on 23 November 2026, 55 days out and beyond a typical 20-trading-day window. The prior report on 10 August showed adjusted EPS of $0.64 against a $0.59 estimate, yet the stock reacted with a 9.4% move, in line with its average absolute reaction of 9.4%. No insider, Congress or unusual options activity appears in the current windows, and there are no billionaire holders recorded, against one trailblazer holder. Seasonal history is insufficient for a seasonal read.
Written by AI and checked automatically against the figures on this page. Generated Sep 29, 2026 from the data above.
Amentum price vs fair value
Close $18.49200-day averageGekko Fair Value $35.07
Amentum quick facts
- Market cap
- $4.51B
- P/E ratio
- 23.1
- Forward P/E
- 7.5
- EPS, TTM
- $0.83
- Revenue, TTM
- $14.13B
- Profit margin
- 1.4%
- Dividend yield
- —
- Beta
- —
- Volume
- 1.18M avg 1.67M
- 1-year return
- −17.3%
- Typical daily move
- ±3.2%
- Typical 20-day move
- ±8.8%
- 50-day average
- $21.05
- 200-day average
- $25.79
- Next earnings
- Nov 23 before open
- Shares outstanding
- 244.5M
Amentum swing-trade checklist
Amentum scores 3 supportive, 0 mixed and 1 headwind across the 4 checklist items with data.
Six things swing traders check before a 20-day hold, read from the latest data.
3 supportive0 mixed1 headwind
- Trendheadwind
Below 50 and 200-day
Close $18.49 is below the 50-day ($21.05) and 200-day ($25.79) averages, and the 50-day is below the 200-day.
See the chart - GekkoIndexsupportive
67.2, Accumulation
Reading 67.2 is in the Accumulation zone.
See the GekkoIndex - Fair valuesupportive
47.3% below
Price is 47.3% below Gekko Fair Value (more than 5% below).
See fair value - Smart moneyno data
No data
No insider, Congress or unusual options activity in the window.
See smart money - Earnings risksupportive
Reports in 55 days
Next report Nov 23, 2026, 55 days away — outside a typical 20-trading-day hold.
See earnings - Seasonalityno data
No data
Not enough years of history for a seasonal read.
A description of current data, not a recommendation. How this page works
Amentum stock chart and price history
Amentum closed at $18.49 on Sep 28, 2026, −17.3% over the past year, inside a 52-week range of $18.48 to $38.11.
Close50-day average200-day averageVolume
Use the left and right arrow keys to read daily values.
Performance Breakdown
- 1 month
- −9.5%
- 3 months
- −8.6%
- 6 months
- −28.4%
- 1 year
- −17.3%
The full AMTM chart adds GekkoIndex, insider, options, Congress and hedge fund markers, plus TrendCandles™.Open AMTM in Gekko
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About Amentum
Amentum supplies technology-based services to government bodies and commercial clients, with particular recognition for its work supporting defense, intelligence, and energy programs. Its offerings span testing and oversight of missile defense systems, IT and engineering support for defense and space customers, and technical work for energy clients that includes installation, decommissioning, and environmental cleanup.
The company runs through two segments. Critical Mission Solutions covers the missile defense, space, defense engineering, and energy-related work described above, along with technical consulting. Cyber & Intelligence handles cyber training and data analytics for government personnel, plus communication systems and aerial mapping used in national security work, along with other technical support for U.S. defense and intelligence agencies.
Amentum was established on November 26, 2019, and its headquarters are in Chantilly, Virginia. Its shares are listed on the NYSE under the ticker AMTM.
- Listed
- NYSE
- Sector
- Electronic technology
- Industry
- Aerospace & defense
- Website
- amentum.com
Amentum GekkoIndex: the smart money zone
Amentum’s GekkoIndex — Gekko’s 0 to 100 smart money score — reads 67.2, in the Accumulation zone, up 3.9 points over five sessions.
67.2Accumulation
Up 3.9 points over five sessions.
Reading for Sep 28, 2026
What followed past readings in each zone
| Zone | Readings | 5 days | 20 days | ||
|---|---|---|---|---|---|
| Buying | 36 | +1.9% | +3.8% | ||
| Accumulation (current zone) | 224 | −0.3% | −0.7% | ||
| Neutral | 231 | −0.1% | −0.9% | ||
| Distribution | 6 | Too few readings yet | |||
| Selling | 1 | Too few readings yet | |||
Average AMTM share-price change over the trading days after each daily reading in its GekkoIndex history. Across every stock Gekko tracks, Accumulation readings averaged +2.3% over 20 days. Past behaviour doesn’t guarantee future results.
Accumulation zone: Institutional interest building. About the five zones →
See every daily GekkoIndex reading plotted over the AMTM price, zone by zone.Track AMTM in Gekko
Is Amentum stock overvalued? Gekko Fair Value
Amentum trades 47.3% below Gekko Fair Value of $35.07, so the shares are undervalued on Gekko’s estimate.
Gekko’s own estimate of what Amentum shares are worth, recalculated every trading day.
$35.07
Gekko Fair Value, Sep 29, 2026
47.3% Undervalued
Gekko Fair Value on every chart, with the gap to price updating daily.Open AMTM in Gekko
Amentum insider and Congress trading
No open-market insider purchases were filed for Amentum, and no Congress trades were disclosed, in the last 90 days.
Plus buybacks, unusual options and fund positions, each dated to when it became public.
Congress trades last 90 days
No trades in AMTM were disclosed by members of Congress in the last 90 days.
From congressional disclosures, which report amounts as ranges.
Congress disclosures for AMTM, plotted on the chart in Gekko.Open AMTM in Gekko
Hedge funds and billionaires quarter ended Jun 30
1of the funds Gekko tracks holds AMTM.
1added0opened0trimmed1sold out
Which funds are on each side, name by name.Unlock in Gekko
Amentum earnings: next date and track record
Amentum reports on Nov 23, 2026, before the open (55 days away), and beat the EPS estimate in 6 of its last 8 reports.
Next earnings report
Nov 23, 2026
Expected before the open, 55 days away
- EPS estimate
- $0.66
- Revenue estimate
- $3.70B
6 of 8reports beat the EPS estimate
±9.4%average move across the report
3 of 8reports followed by a gain
Share-price move across each report
Last earnings call, Aug 10, 2026 AI summary
- What they said
- Amentum's Q3 FY2026 earnings call conveyed a mixed but overall constructive picture: revenue of $3.5 billion came in slightly below expectations due to protest delays, NASA in-sourcing and lower-margin material volume, but operational execution drove stronger-than-expected profitability, margin expansion and free cash flow. Adjusted EBITDA was $290 million (8.3% margin), adjusted diluted EPS was $0.67 (up 20% YoY) and free cash flow was $135 million. Management reported strong business development momentum: net bookings of $3.9 billion, book-to-bill of 1.1x for the quarter and trailing 12-month 1.3x, ending backlog of $48 billion and funded backlog up 10% YoY to $6.2 billion, with $32 billion pending awards. Management emphasized progress on deleveraging (net leverage ~3x), capital allocation discipline (M&A, buybacks, debt paydown), and strategic shifts toward higher-margin, technology-enabled and fixed-price work—particularly highlighting nuclear energy and critical digital infrastructure as growth engines. Management provided preliminary FY2027 outlook with ~92% revenue visibility from existing/follow-on work and mid-single-digit portfolio growth excluding NASA impacts, while acknowledging a ~3% revenue impact from NASA in-sourcing. Answers in Q&A were candid and confident, noting near-term headwinds (protests, procurement delays, materials timing, NASA) but expressing conviction in margin and cash generation and long-term opportunity (nuclear, digital, national security transformations).
- Guidance
- Revised FY'26 guidance (directional, not full numeric detail on this call): revenue updated to reflect near-term delays (Q3 revenue slightly below prior expectations), but raised expectations for adjusted EBITDA and adjusted diluted EPS based on YTD outperformance. Preliminary FY'27 expectations: portfolio growing at a mid-single-digit rate excluding NASA; management expects ~92% of FY'27 revenue to come from existing or follow-on work; NASA in-sourcing is modeled as a ~3% headwind to revenue (with a smaller EBITDA impact). Q4 FY'26 expected to be consistent with year-to-date trends (~2% growth at midpoint for Q4) and remains the seasonally highest revenue quarter.
- Risks flagged
- Near-term risks noted: award and procurement delays and protests (~$175 million of near-term new business delays), NASA in-sourcing (~3% revenue headwind), materials and non-labor volume timing impacting revenue and margins, corrective actions/protests on new awards, uncertainty from government procurement changes (executive order favoring fixed-price work causing slower award cadence), potential budget uncertainty/continuing resolution early in FY'27. Additionally, legacy low- to no-margin base operations (about 1% of revenue) are being exited, and the company faces typical program execution and conversion risks.
| Reported | EPS | Revenue | Move |
|---|---|---|---|
| Aug 10, 2026 | $0.64 est $0.59 | $3.49B est $3.57B | −9.4% |
| May 11, 2026 | $0.61 est $0.57 | $3.48B est $3.47B | −0.9% |
| Feb 9, 2026 | $0.54 est $0.53 | $3.24B est $3.32B | −14.6% |
| Nov 24, 2025 | $0.63 est $0.59 | $3.93B est $3.61B | +23.7% |
| Aug 5, 2025 | $0.04 est $0.31 | $3.56B est $3.62B | +5.1% |
| May 6, 2025 | $0.02 est $0.26 | $3.49B est $3.51B | −3.3% |
| Feb 4, 2025 | $0.51 est $0.45 | $3.42B est $3.44B | +11.2% |
| Dec 16, 2024 | $0.47 est $0.25 | $2.21B est $3.41B | −6.7% |
“Move” is the close of the first session after the report compared with the close of the last session before it, so it reads the same whether the company reported before the open or after the close.
Amentum stock forecast and analyst price targets
Analysts’ average 12-month price target for Amentum is $29.58, +60.0% from the last close, from 8 firms rating the stock in the last 90 days.
$29.58consensus 12-month target, +60.0% from the last close
Now $18.49Avg $29.58
Low $26High $40
Each firm’s latest rating in the last 90 days: 8 firms.
Latest analyst actions
| Date | Firm | Target | vs price |
|---|---|---|---|
| Aug 20 | Goldman Sachs | — | — |
| Aug 20 | Goldman Sachs | $24 | +29.8% |
| Aug 17 | J.P. Morgan | $26 | +40.6% |
| Aug 12 | BTIG | $30 | +62.2% |
| Aug 12 | Morgan Stanley | $30 | +62.2% |
−0.7%average 20-day move after past Accumulation readings
±3.2%typical daily move, from the 14-day average range
Gekko doesn’t publish price predictions. These are analyst targets and historical base rates, which don’t guarantee future results.
Amentum market cap and key statistics
Amentum’s market cap is $4.51B, with a P/E ratio of 23.1 and revenue of $14.13B over the last twelve months.
Valuation
- Market cap
- $4.51B
- P/E ratio
- 23.1
- Forward P/E
- 7.5
- EPS, TTM
- $0.83
- Gekko Fair Value
- $35.07
Trading
- Volume
- 1.18M
- Avg volume, 20 days
- 1.67M
- 52-week high
- $38.11
- 52-week low
- $18.48
- Shares outstanding
- 244.5M
Financials
- Revenue, TTM
- $14.13B
- Profit margin
- 1.4%
- Return on equity
- 4.3%
- Quarterly earnings growth, YoY
- +575.0%
Risk and income
- Typical daily move
- ±3.2%
- Typical 20-day move
- ±8.8%
Amentum stock news this week
3 headlines about Amentum from the past week, newest first, each linking to the publisher.
- Amentum Holdings LLC stock hits 52-week low at 19.2 USDInvesting.com, Sep 25
- Amentum Holdings, Inc. (AMTM) Stock Price, News, Quote & HistoryYahoo! Finance Canada, Sep 23
- Amentum Holdings, Inc. (NYSE:AMTM) Receives Average Rating of “Hold” from BrokeragesDefense World, Sep 22
Amentum peers
Amentum’s 6 largest industry peers by market value, with today’s move, GekkoIndex zone and gap to Gekko Fair Value.
| Stock | GekkoIndex zone | vs Fair Value |
|---|---|---|
| GEGE Aerospace | Accumulation | 0.8% below |
| RTXRTX | Accumulation | 12.0% below |
| BABoeing | Buying | 22.4% below |
| LMTLockheed Martin | Accumulation | 19.7% below |
| HWMHowmet Aerospace | Accumulation | 3.2% below |
| GDGeneral Dynamics | Accumulation | 9.8% below |
A peer links to its own page where one exists.
Amentum stock FAQ
What is Amentum’s market cap?
Amentum’s market cap is $4.51B at the Sep 28, 2026 close of $18.49, with 244.5M shares outstanding. The shares trade on a P/E ratio of 23.1.
What is the Amentum stock forecast?
The consensus analyst 12-month price target for Amentum is $29.58, +60.0% from the last close. Of the 8 firms that rated the stock in the last 90 days, 3 rate it a buy, 5 a hold and 0 a sell. Gekko doesn’t publish price predictions of its own.
Is Amentum stock overvalued or undervalued?
On Gekko’s estimate Amentum is undervalued: the Sep 28, 2026 close of $18.49 is 47.3% below Gekko Fair Value of $35.07. Gekko Fair Value is recalculated every trading day, and a gap inside 5% either way counts as about fair value.
When does Amentum report earnings next?
Amentum is expected to report on Nov 23, 2026, before the market opens (55 days away). Analysts expect earnings of $0.66 per share on revenue of $3.70B. Amentum beat the earnings estimate in 6 of its last 8 reports, moving 9.4% on average across the report.
What is Amentum’s 52-week high and low?
Amentum’s 52-week high is $38.11 and its 52-week low is $18.48; it closed at $18.49 on Sep 28, 2026, −17.3% over the past year.
Is Amentum stock a buy right now?
Gekko describes the data; it does not make buy or sell recommendations. On the swing-trade checklist, 3 of the 4 items with data read as supportive (gekkoindex, fair value and earnings risk) and 1 as a headwind (trend). The checklist is a description of current data, not a recommendation.
How this page works
During US trading hours the price at the top of the page is a delayed quote, refreshed every 15 minutes; everything else is rebuilt after each US market close. The GekkoIndex, Gekko Fair Value and the checklist are Gekko’s own, and the Gekko Brief is written by AI from this page’s data and checked against it before it is published. How Gekko’s data works →
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