Stocks · Healthcare · Drug Manufacturers - Specialty & Generic
Amphastar Pharmaceuticals, Inc. AMPH
$25.43 +0.32% Close, Oct 2, 2026 · NASDAQ · Market cap $1.12B
Inexpensive vs sector
Next earnings report: Nov 5, 2026
Scroll or pinch to zoom, drag to move. Daily prices adjusted for splits. Markers: E = earnings (green beat, red miss), S = split, D = dividend.
Three things to know
- Operating margin narrowed to 15.7% from 25.2% a year earlier.
- The diluted share count fell 8.1% in a year, mainly through buybacks.
- Diluted EPS over the last four quarters was $1.69, down 36.7% year over year.
PromtFinance scores
Each score is a percentile within the Healthcare sector (0–100). Under each score: how the stock ranks in its sector on every component. As of Oct 5, 2026.
How fast revenue, earnings and cash flow are growing.
- Revenue growth (TTM, YoY)Bottom 32%
- EPS growth (TTM, YoY)Bottom 31%
- FCF growth (TTM, YoY)Top 37%
- Revenue growth, 3-year CAGRTop 43%
- Revenue growth accelerationTop 25%
Returns on capital, margins, earnings quality and balance-sheet strength.
- Return on invested capitalTop 22%
- Gross marginBottom 31%
- Operating marginTop 17%
- Cash conversion (OCF / net income)Top 26%
- Accruals (lower is better)Bottom 47%
- Net debt / EBITDA (lower is better)Bottom 33%
- Interest coverTop 28%
How cheap the shares are relative to earnings, cash flow and their own history.
- Earnings yieldTop 6%
- Free-cash-flow yieldTop 4%
- EBITDA / enterprise valueTop 7%
- Sales / enterprise valueTop 27%
- P/E vs own 5-year history (lower is better)Top 48%
Strength and persistence of the price trend, including versus the S&P 500.
- 12-month return excluding last monthBottom 28%
- 6-month returnTop 35%
- 1-year return vs S&P 500Bottom 39%
- Distance from 52-week highTop 22%
- Trend checklist (0–4)Top 7%
Earnings surprises and analyst sentiment (estimate-revision history is being collected).
- Average EPS surprise, last 4 quartersBottom 47%
- Consecutive EPS beatsBottom 49%
- Share of analysts rating BuyBottom 2%
- Upside to consensus price targetBottom 4%
Low volatility, shallow drawdowns, low market sensitivity and modest leverage.
- Volatility, 60 days (lower is better)Top 14%
- Maximum drawdown, 3 yearsBottom 45%
- Beta vs S&P 500 (lower is better)Top 25%
- Net debt / EBITDA (lower is better)Bottom 33%
What changed
Latest four quarters versus the same period a year earlier (growth: versus one quarter earlier).
| Measure | Before | Now | |
|---|---|---|---|
| Revenue growth (YoY) | -1.1% | 1.4% | ↑ |
| EPS growth (YoY) | -39.9% | -36.7% | ↑ |
| Gross margin | 50.0% | 47.7% | ↓ |
| Operating margin | 25.2% | 15.7% | ↓ |
| FCF margin | 15.6% | 20.9% | ↑ |
Fundamental momentum
| Measure | Now (TTM) | Year / quarter before | Sector rank | |
|---|---|---|---|---|
| Revenue growth (TTM, YoY) | 1.4% | -1.1% | ↑ | Bottom 32% |
| EPS growth (TTM, YoY) | -36.7% | -39.9% | ↑ | Bottom 31% |
| Gross margin | 47.7% | 50.0% | ↓ | Bottom 31% |
| Operating margin | 15.7% | 25.2% | ↓ | Top 17% |
| Net margin | 10.8% | 18.7% | ↓ | — |
| Free-cash-flow margin | 20.9% | 15.6% | ↑ | — |
| Return on invested capital | 5.9% | — | Top 22% | |
| Revenue growth, 3-year CAGR | 13.0% | — | Top 43% |
Quality of earnings and balance sheet
- Cash conversion (OCF / net income)Above 1× means profits are backed by cash.
- 2.35×
- Accruals (net income − OCF) / assetsLower is better; high accruals can signal weaker earnings quality.
- -6.1%
- Stock-based compensation / revenueA cost to shareholders through dilution.
- 4.0%
- Receivables growth vs revenue growthReceivables growing much faster than sales can be a warning.
- +6.3 pp
- Net debt / EBITDABelow 1× is conservative; above 3× is high leverage.
- 2.66×
- Interest cover (operating income / interest)How many times operating profit covers interest.
- 4.4×
Shareholder returns
- Dividend yield (dividends paid, TTM)
- 0.00%
- Net buyback yield (TTM)
- 3.88%
- Shareholder yield
- 3.88%
- Share count change, 1 year
- -8.1%
- Share count change, 3-year CAGR
- -5.9%
Shareholder yield = dividends + net buybacks over the last four quarters, divided by market cap.
Based on the four quarters through Jun 30, 2026 (filed Aug 6, 2026).
Earnings and expectations
Earnings momentum
- Consecutive EPS beats
- 1
- Beats in the last 8 reports
- 4 of 8
- Average EPS surprise, last 4
- +2.1%
- Average 2-day reaction, last 8
- -0.1%
- Positive 20 days after report
- 4 of 8
Analysts
- Consensus price target
- $21.25
- Target vs current price
- -16.4%
- Analysts with a rating
- 12
- Share rating Buy or Strong Buy
- 25%
- Consensus rating
- Hold
How the stock reacted to recent reports
| Report date | EPS surprise | 2 days | 5 days | 20 days | 60 days |
|---|---|---|---|---|---|
| Aug 6, 2026 | +46.8% | -2.1% | -1.3% | +17.3% | — |
| May 7, 2026 | -40.0% | +0.5% | -23.3% | -21.8% | -15.4% |
| Feb 26, 2026 | -19.2% | -5.3% | -28.6% | -30.0% | -35.1% |
| Nov 6, 2025 | +20.8% | -4.3% | +10.0% | +7.3% | +11.6% |
| Aug 7, 2025 | +19.7% | +3.8% | +46.4% | +40.2% | +18.4% |
| May 7, 2025 | +12.1% | +2.3% | +0.0% | +8.3% | -11.1% |
| Feb 27, 2025 | -8.9% | +0.9% | -10.1% | -9.1% | -22.5% |
| Nov 6, 2024 | -3.0% | +3.6% | -7.5% | -14.1% | -35.6% |
Returns from the close before each report. Past reactions do not determine future ones.
Earnings history
| Report date | EPS | Estimate | Surprise | Revenue |
|---|---|---|---|---|
| Aug 6, 2026 | $0.91 | $0.62 | +46.8% | $183.9M |
| May 7, 2026 | $0.42 | $0.70 | -40.0% | $171.2M |
| Feb 26, 2026 | $0.73 | $0.90 | -19.2% | $183.1M |
| Nov 6, 2025 | $0.93 | $0.77 | +20.8% | $191.8M |
| Aug 7, 2025 | $0.85 | $0.71 | +19.7% | $174.4M |
| May 7, 2025 | $0.74 | $0.66 | +12.1% | $170.5M |
| Feb 27, 2025 | $0.92 | $1.01 | -8.9% | $186.5M |
| Nov 6, 2024 | $0.96 | $0.99 | -3.0% | $188.8M |
Valuation in context
| Multiple | Now | 5-year median | 5-year percentile | Sector rank (cheapness) |
|---|---|---|---|---|
| P/E (trailing) | 15.0× | 17.7× | 43th | Top 6% |
| P/E (forward) | 8.6× | — | — | — |
| EV / EBITDA | 9.1× | — | — | Top 7% |
| EV / Sales | 2.17× | — | — | Top 27% |
| Free-cash-flow yield | 13.64% | — | — | Top 4% |
| Earnings yield | 6.65% | — | — | Top 6% |
P/E over the past five years
Range 8.1× – 95.6× since Jun 30, 2021. Each point: price on the filing date divided by trailing-twelve-month EPS known then.
What moved the stock over the past year
- Price return, 1 year
- -5.8%
- Earnings per share growth (TTM)
- -36.7%
- Change in P/E multiple
- +44.7%
Most of the move came from earnings growth.
Technical state
Trend checklist
- ✓ Price above 20-day average
- ✓ Price above 50-day average
- ✓ Price above 200-day average
- ✓ 50-day average above 200-day
- ✗ MACD histogram positive
Trend quality
- Days above the 50-day average
- 48
- Days above the 200-day average
- 23
- 50-day average slope (20 days)
- +9.6%
- 200-day average slope (20 days)
- -0.8%
- Distance from 50-day average
- +13.2%
- Distance from 200-day average
- +13.8%
- RSI (14)
- 59.6
- Relative volume
- 0.67×
Risk and drawdowns
- Volatility, 60 days (annualized)
- 34.0%
- Volatility vs own 5-year history
- 17th percentile · Low for this stock
- Beta vs S&P 500 (2 years, weekly)
- 0.66
- Correlation with S&P 500
- 0.20
- Current drawdown from 1-year high
- -13.5%
- Maximum drawdown, 3 years
- -73.4%
Largest declines in the past six years
| From peak | To low | Decline | Length | Recovery |
|---|---|---|---|---|
| Aug 8, 2023 | May 15, 2026 | -74.1% | 695 days | Not yet recovered |
| Apr 13, 2022 | Nov 8, 2022 | -35.5% | 144 days | 109 days (Apr 18, 2023) |
| Oct 9, 2020 | Apr 12, 2021 | -19.4% | 125 days | 78 days (Aug 2, 2021) |
| Apr 21, 2023 | Apr 28, 2023 | -18.4% | 5 days | 14 days (May 18, 2023) |
| Aug 3, 2021 | Sep 10, 2021 | -17.0% | 27 days | 64 days (Dec 10, 2021) |
Declines of 10% or more from a closing high, measured on daily closes.
Financial statements
- Market cap
- $1.12B
- P/E (TTM)
- 15.0
- EPS, diluted (TTM)
- $1.69
- Revenue (TTM)
- $730.0M
- 52-week range
- $16.65 – $29.52
| FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 | |
|---|---|---|---|---|---|
| Revenue | $437.8M | $499.0M | $644.4M | $732.0M | $719.9M |
| Gross profit | $199.7M | $248.9M | $351.1M | $373.9M | $356.1M |
| Operating income | $69.9M | $107.5M | $197.0M | $205.4M | $140.4M |
| Net income | $62.1M | $91.4M | $137.5M | $159.5M | $98.1M |
| EPS (diluted) | $1.25 | $1.74 | $2.60 | $3.06 | $2.03 |
| Q3 2024 | Q4 2024 | Q1 2025 | Q2 2025 | Q3 2025 | Q4 2025 | Q1 2026 | Q2 2026 | |
|---|---|---|---|---|---|---|---|---|
| Revenue | $188.8M | $186.5M | $170.5M | $174.4M | $191.8M | $183.1M | $171.2M | $183.9M |
| Net income | $40.4M | $38.0M | $25.3M | $31.0M | $17.4M | $24.4M | $6.4M | $30.3M |
| EPS (diluted) | $0.78 | $0.74 | $0.51 | $0.64 | $0.37 | $0.51 | $0.14 | $0.67 |
| FY 2021 | FY 2022 | FY 2023 | FY 2024 | FY 2025 | |
|---|---|---|---|---|---|
| Operating cash flow | $98.0M | $89.2M | $183.5M | $213.4M | $156.1M |
| Capital expenditure | -$27.5M | -$24.0M | -$38.2M | -$41.0M | -$34.9M |
| Free cash flow | $70.5M | $65.1M | $145.3M | $172.3M | $121.2M |
| Dividends paid | $0 | $0 | $0 | $0 | $0 |
| Net share buybacks | -$28.9M | -$39.9M | -$58.1M | -$85.5M | -$72.7M |
Cash outflows are shown as negative numbers.
- Cash and short-term investments
- $290.1M
- Total assets
- $1.74B
- Total liabilities
- $975.6M
- Total debt
- $688.3M
- Net debt
- $464.7M
- Shareholders’ equity
- $768.2M
As of Jun 30, 2026 (filed Aug 6, 2026).
Dividends
| Ex-date | Amount | Paid |
|---|---|---|
| Jun 11, 2010 | $0.30 | Jun 30, 2010 |
| Jun 11, 2009 | $0.30 | Jun 30, 2009 |
Short interest
- Shares sold short
- 4,994,808
- Days to cover
- 10.75
- Change vs previous report
- -2.7%
FINRA short interest, settlement date Sep 15, 2026.