Amentum Holdings (AMTM) Historical Monthly & Quarterly Returns
Dividend-adjusted returns by month and quarter. Compare performance across years.
Calculated from 3 years of price history (2024–2026), as of .
AMTM
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | +23.4% | 16.5% | 12.7% | +0.6% | 11.7% | — | — | — | — | — | — | — |
| 2025 | 0.3% | 6.3% | 7.3% | +19.9% | 5.3% | +14.3% | +5.8% | 0.1% | 4.0% | 6.4% | +27.8% | +1.3% |
| 2024 | — | — | — | — | — | — | — | — | +9.3% | 7.8% | 18.1% | 13.6% |
| Avg | +11.5% | 11.4% | 10.0% | +10.2% | 8.5% | +14.3% | +5.8% | 0.1% | +2.6% | 7.1% | +4.8% | 6.2% |
| Median | +11.5% | 11.4% | 10.0% | +10.2% | 8.5% | +14.3% | +5.8% | 0.1% | +2.6% | 7.1% | +4.8% | 6.2% |
| Win % | 50% | 0% | 0% | 100% | 0% | 100% | 100% | 0% | 50% | 0% | 50% | 50% |
2026
2025
2024
Avg
Median
Win %
Frequently asked questions
What is the best performing month for Amentum Holdings (AMTM) stock?
Historically, June is the best performing month for Amentum Holdings (AMTM) stock with an average return of +14.28%.
What is the worst performing month for Amentum Holdings (AMTM) stock?
Historically, February is the worst performing month for Amentum Holdings (AMTM) stock with an average return of 11.43%.
What is the best performing quarter for Amentum Holdings (AMTM) stock?
Historically, Q2 is the best performing quarter for Amentum Holdings (AMTM) stock with an average return of +9.26%.
What is the worst performing quarter for Amentum Holdings (AMTM) stock?
Historically, Q1 is the worst performing quarter for Amentum Holdings (AMTM) stock with an average return of 11.76%.
What is the best performing year for Amentum Holdings (AMTM) stock?
Historically, 2025 is the best performing year for Amentum Holdings (AMTM) stock with a return of +37.90%.
What is the worst performing year for Amentum Holdings (AMTM) stock?
Historically, 2024 is the worst performing year for Amentum Holdings (AMTM) stock with a return of 28.74%.
Which month has the highest win rate for Amentum Holdings (AMTM) stock?
Historically, April has the highest win rate for Amentum Holdings (AMTM) stock — positive in 100% of years.
Which month has the lowest win rate for Amentum Holdings (AMTM) stock?
Historically, February has the lowest win rate for Amentum Holdings (AMTM) stock — positive in 0% of years.
Which quarter has the highest win rate for Amentum Holdings (AMTM) stock?
Historically, Q3 has the highest win rate for Amentum Holdings (AMTM) stock — positive in 100% of years.
Which quarter has the lowest win rate for Amentum Holdings (AMTM) stock?
Historically, Q1 has the lowest win rate for Amentum Holdings (AMTM) stock — positive in 0% of years.
Data & methodology
How are returns calculated?
We compare the closing price at the end of each period (month or quarter) with the closing price at the end of the previous period. The return is the percentage change. All prices are adjusted for dividends and stock splits. Based on historical prices from our data provider.
What is average vs median?
Average is the arithmetic mean of returns for each period across years. Median is the middle value. Both exclude empty cells. Use median to reduce impact of outliers.
What does the heatmap show?
Green cells indicate positive returns, red cells indicate negative returns. The darker the color, the stronger the move. Average and Median rows summarize each column across years.
What is Win %?
Percentage of years when the period had a positive return. For example, 80% for January means January was positive in 80% of the years in the selected range.
Explore more
AMTM Overview
Company profile, financial tools, and key metrics
AMTM What If Invested
What if you had invested $1,000? See historical returns from any date.
AMTM How It Makes Money
Discover visual breakdown — where revenue comes from and where it goes.
AMTM Price Target Scenarios
Model bear, base, and bull cases with EPS growth and exit P/E — pre-filled from analysts and history.
AMTM Daily Price Character
Explosive · 46.8% historical win rate (green days). Streaks & record days.
AMTM Buybacks
See repurchase history & metrics. Shareholder yield & SBC comparison.
AMTM Financials
Revenue, EPS, EBITDA, market cap, debt and balance sheet history with annual and quarterly data.