Amphastar Pharmaceuticals, Inc. (AMPH) stock
AMPHNasdaqPharmaceutical PreparationsFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Nov 5, 2026Score 13/3033% below fair value
$28.60−0.46 (-1.58%)
Close on Nov 11, 2026Market cap $1.22BP/E 13.0Yield –
Amphastar Pharmaceuticals statistics
108 measures from SEC filings and the closing price. Hover a name for the formula; the last column is the median of companies in the same industry group.
Important dates
- Next earnings
- Feb 25, 2027 (estimated, during market hours)
- Last ex-dividend date
- No dividends
- Fundamentals through
- Sep 30, 2026
- Share price as of
- Nov 11, 2026
Valuation ratiosIndustry
- P/TBV Ratio
- 5.98
- 2.39
- P/OCF Ratio
- 6.94
- 13.11
Enterprise valuationIndustry
- EV / Sales
- 2.14
- 2.65
- EV / EBIT
- 11.44
- 19.03
- EV / FCF
- 11.50
- 22.15
Share statisticsIndustry
- Shares Change (YoY)
- -8.01%
- 10.9%
- Shares Change (QoQ)
- 0.27%
- 0.51%
- Float
- 26M
- 49M
- Shares Held by Insiders
- 38.7%
- 11.6%
- Shares Held by Institutions
- 66.6%
- 56.4%
Short sellingIndustry
- Short Interest
- 4M
- –
- Short Interest Change
- -1.67%
- -0.76%
- Short % of Float
- 16.3%
- 9.06%
- Short % of Shares Outstanding
- 10.0%
- 6.38%
- Days to Cover
- 11.34
- 5.16
Stock price statisticsIndustry
- 52-Week High
- $31.00
- –
- 52-Week Low
- $16.64
- –
- 20-Day Moving Average
- $26.96
- –
- 50-Day Moving Average
- $25.74
- –
- 200-Day Moving Average
- $22.33
- –
- Average True Range (14)
- $1.09
- –
- Price Change (1 Week)
- 2.07%
- -0.50%
- Price Change (1 Month)
- 9.79%
- -0.33%
- Price Change (3 Months)
- 41.7%
- -17.2%
- Price Change (6 Months)
- 56.1%
- -20.1%
- Price Change (YTD)
- 6.80%
- -20.1%
- Price Change (1 Year)
- 9.49%
- -19.3%
- Price Change (3 Years)
- -45.6%
- -23.4%
- Price Change (5 Years)
- 34.3%
- -76.4%
- Price Change (10 Years)
- 36.6%
- -62.4%
- Average Volume (10 Days)
- 578,070
- –
- Average Volume (20 Days)
- 464,046
- –
- Average Volume (90 Days)
- 465,425
- –
- Relative Volume
- 1.07
- 0.73
- Relative Strength Index (14)
- 63.2
- 47.6
- Volatility (1 Year)
- 50.9%
- 80.2%
- Beta (5 Years)
- 0.56
- 1.07
MarginsIndustry
- Pretax Margin
- 17.4%
- -12.1%
- EBITDA Margin
- 18.7%
- -25.0%
- FCF Margin
- 18.6%
- -9.55%
Returns on capitalIndustry
- Return on Equity (ROE)
- 12.4%
- -51.3%
- Return on Assets (ROA)
- 5.86%
- -40.3%
- Return on Invested Capital (ROIC)
- 9.25%
- -34.0%
- Return on Capital Employed (ROCE)
- 9.13%
- -37.7%
Financial positionIndustry
- Current Ratio
- 3.32
- 3.30
- Quick Ratio
- 2.28
- 2.37
- Debt / Equity
- 0.75
- 0.49
- Debt / EBITDA
- 4.39
- 3.15
- Debt / FCF
- 4.41
- 4.62
- Net Debt / EBITDA
- 2.74
- 1.97
- Interest Coverage
- 5.25
- -6.27
GrowthIndustry
- Revenue Growth (YoY)
- 3.11%
- 7.01%
- Net Income Growth (YoY)
- -11.3%
- -24.7%
- EPS Growth (YoY)
- -2.65%
- -12.8%
- FCF Growth (YoY)
- 22.7%
- 6.85%
- Revenue Growth (3Y CAGR)
- 13.0%
- 2.25%
- Revenue Growth (5Y CAGR)
- 15.5%
- 6.41%
- EPS Growth (3Y CAGR)
- 5.27%
- -0.17%
- EPS Growth (5Y CAGR)
- 132.3%
- 3.77%
EfficiencyIndustry
- Asset Turnover
- 0.44
- 0.40
- Inventory Turnover
- 2.20
- 2.68
- Revenue Per Employee
- $4.58M
- $426.63K
- Profits Per Employee
- $607.12K
- -$680.86K
- Employee Count
- 163
- 75
- WACC
- 6.37%
- 10.1%
Income statement (TTM)Industry
- Pretax Income
- $129.57M
- -$13.50M
Balance sheetIndustry
- Net Cash (Debt)
- -$382.37M
- $16.31M
- Net Cash Per Share
- -$8.99
- $0.70
- Equity (Book Value)
- $814.55M
- $53.12M
- Book Value Per Share
- $19.15
- $1.49
- Tangible Book Value
- $203.35M
- $26.11M
- Working Capital
- $421.25M
- $77.59M
Cash flow (TTM)Industry
- Capital Expenditures
- -$36.31M
- -$939.00K
- FCF Per Share
- $3.27
- -$0.42
Dividends and yieldsIndustry
- Earnings Yield
- 8.13%
- -19.8%
- FCF Yield
- 11.4%
- -8.81%
- Buyback Yield
- 7.86%
- -0.69%
- Shareholder Yield
- 7.86%
- 0.00%
Taxes and interestIndustry
- Interest Expense
- $26.60M
- $2.98M
- Income Tax
- $30.61M
- $79.50K
- Effective Tax Rate
- 23.6%
- 20.7%
Scores and fair valueIndustry
- Graham Number
- $30.79
- $19.42
- Graham Upside
- 7.65%
- -45.8%
- Altman Z-Score
- 2.42
- 0.28
- Piotroski F-Score
- 6
- 4
- Lynch Fair Value
- $55.00
- –
- Lynch Upside
- 92.3%
- -27.9%
Total return vs. the S&P 500
Price change plus reinvested dividends, to the close on Nov 11, 2026. The S&P 500 is measured by the SPY fund.
| Period | AMPH | S&P 500 | Difference | AMPH per year | S&P 500 per year |
|---|---|---|---|---|---|
| 1 month | +7.4% | -2.4% | +9.8 pts | ||
| 3 months | +40.1% | -1.2% | +41.2 pts | ||
| Year to date | +6.8% | +12.3% | −5.5 pts | ||
| 1 year | +5.3% | +12.4% | −7.1 pts | ||
| 3 years | -45.6% | +78.8% | −124.4 pts | -18.4% | +21.4% |
| 5 years | +35.0% | +75.2% | −40.1 pts | +6.2% | +11.9% |
| 10 years | +36.6% | +311.1% | −274.5 pts | +3.2% | +15.2% |
Short interest
Shares sold short and not yet covered, reported by brokers to FINRA twice a month. Latest settlement date Oct 30, 2026.
4M AMPH shares were sold short on Oct 30, 2026, down 1.7% from the previous report, or 16.34% of the shares available to trade. At recent volumes it would take 11.3 days to buy them back. Over the last 20 sessions, 64.3% of the volume reported to FINRA was short selling.
| Settlement date | Shares short | Change | Avg. daily volume | Days to cover |
|---|---|---|---|---|
| Oct 30, 2026 | 4,261,462 | -1.7% | 375,643 | 11.3 |
| Oct 15, 2026 | 4,333,767 | -1.6% | 439,800 | 9.8 |
| Sep 30, 2026 | 4,405,038 | -11.8% | 620,832 | 7.1 |
| Sep 15, 2026 | 4,994,808 | -2.7% | 464,708 | 10.8 |
| Aug 31, 2026 | 5,134,473 | -4.7% | 334,222 | 15.4 |
| Aug 14, 2026 | 5,385,239 | +9.3% | 540,569 | 10.0 |
| Jul 31, 2026 | 4,928,331 | +18.1% | 414,646 | 11.9 |
| Jul 15, 2026 | 4,174,460 | +8.6% | 374,286 | 11.2 |
| Jun 30, 2026 | 3,845,576 | +1.2% | 734,234 | 5.2 |
| Jun 15, 2026 | 3,799,584 | +1.4% | 532,703 | 7.1 |
| May 29, 2026 | 3,747,543 | -0.9% | 792,627 | 4.7 |
| May 15, 2026 | 3,779,877 | +5.4% | 802,000 | 4.7 |
Ratios use trailing-twelve-month results and the latest balance sheet. How we calculate.
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