Amphastar PharmaceuticalsAMPH +2.21%83 Altman Z-Score is 2.26 as of Jun. 25, 2026, which is 51% below its 10-year median of 4.62. GuruFocus rates AMPH with a GF Score™ of 83/100 and a GF Value™ of $48.78 (Significantly Undervalued). The stock has 5 warning signs investors should review. Among 952 Drug Manufacturers companies, Amphastar Pharmaceuticals ranks worse than 66.28% on this metric.
The Altman Z-Score is a model designed to predict the likelihood of a company going bankrupt within the next two years. Created by American finance professor Edward Altman in 1968, the model is specifically designed for publicly traded manufacturing companies with assets greater than $1 million.
Warning Sign:
Altman Z-score of 2.24 is in the grey area. This implies that the company is under some kind of financial stress. If it is below 1.8, the company may face bankruptcy risk.
Amphastar Pharmaceuticals has a Altman Z-Score of 2.26, indicating it is in Grey Zones. This implies that Amphastar Pharmaceuticals is in some kind of financial stress. If it is below 1.81, the company may face bankrupcy risk.
The zones of discrimination were as such:
When Altman Z-Score <= 1.8, it is in Distress Zones.
When Altman Z-Score >= 3, it is in Safe Zones.
When Altman Z-Score is between 1.8 and 3, it is in Grey Zones.
The historical rank and industry rank for Amphastar Pharmaceuticals's Altman Z-Score or its related term are showing as below:
AMPH'
s Altman Z-Score Range Over the Past 10 Years
Min: 2.21 Med: 4.62 Max: 7.02
Current: 2.24
During the past 13 years, Amphastar Pharmaceuticals's highest Altman Z-Score was 7.02. The lowest was 2.21. And the median was 4.62.
X1: The Working Capital/Total Assets (WC/TA) ratio is a measure of the net liquid assets of the firm relative to the total capitalization. Working capital is defined as the difference between current assets and current liabilities. Ordinarily, a firm experiencing consistent operating losses will have shrinking current assets in relation to total assets. Altman found this one proved to be the most valuable liquidity ratio comparing with the current ratio and the quick ratio. This is however the least significant of the five factors.
X2: Retained Earnings/Total Assets: the RE/TA ratio measures the leverage of a firm. Retained earnings is the account which reports the total amount of reinvested earnings and/or losses of a firm over its entire life. Those firms with high RE, relative to TA, have financed their assets through retention of profits and have not utilized as much debt.
X3, Earnings Before Interest and Taxes/Total Assets (EBIT/TA): This ratio is a measure of the true productivity of the firm's assets, independent of any tax or leverage factors. Since a firm's ultimate existence is based on the earning power of its assets, this ratio appears to be particularly appropriate for studies dealing with corporate failure. This ratio continually outperforms other profitability measures, including cash flow.
X4, Market Value of Equity/Book Value of Total Liabilities (MVE/TL): The measure shows how much the firm's assets can decline in value (measured by market value of equity plus debt) before the liabilities exceed the assets and the firm becomes insolvent.
X5, Revenue/Total Assets (S/TA): The capital-turnover ratio is a standard financial ratio illustrating the sales generating ability of the firm's assets.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.
AMPH vs ETON, ESPR, BIOA: Altman Z-Score Comparison
For the Drug Manufacturers - Specialty & Generic subindustry, Amphastar Pharmaceuticals's Altman Z-Score, along with its competitors' market caps and Altman Z-Score data, can be viewed below:
* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.
Amphastar Pharmaceuticals Altman Z-Score vs Drug Manufacturers Industry
For the Drug Manufacturers industry and Healthcare sector, Amphastar Pharmaceuticals's Altman Z-Score distribution charts can be found below:
* The bar in red indicates where Amphastar Pharmaceuticals's Altman Z-Score falls into.
Altman Z-Score model is an accurate forecaster of failure up to two years prior to distress. It can be considered the assessment of the distress of industrial corporations.
* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD. * For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency. GuruFocus does not calculate Altman Z-Score when X4 or X5 value is 0.
Amphastar Pharmaceuticals (AMPH) has a Altman Z-Score of 2.26 as of Jun. 25, 2026. The Altman Z-score measures a company's bankruptcy risk. View historical data on Amphastar Pharmaceuticals and its competitors. This is 51% below median its historical median of 4.62. Over the past decade, Amphastar Pharmaceuticals' Altman Z-Score has ranged from 2.21 to 7.02. According to the industry distribution chart, Amphastar Pharmaceuticals ranks #631 out of 952 companies in the Drug Manufacturers industry, placing it in the top 66.3%.
Is Amphastar Pharmaceuticals' Altman Z-Score too high?
Amphastar Pharmaceuticals' current Altman Z-Score of 2.26 is 51% below median its 10-year median of 4.62. Over the past 10 years, this metric has ranged from a low of 2.21 to a high of 7.02. The Drug Manufacturers industry median Altman Z-Score is 3.32. Amphastar Pharmaceuticals' value of 2.26 is 31.8% below this industry median. Based on the distribution chart, Amphastar Pharmaceuticals ranks #631 out of 952 companies in the Drug Manufacturers industry, which is below the industry midpoint. Overall, Amphastar Pharmaceuticals has a GF Score™ of 83/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Amphastar Pharmaceuticals' Altman Z-Score compare to ETON and ESPR?
According to the Drug Manufacturers industry distribution chart, Amphastar Pharmaceuticals ranks #631 out of 952 companies for Altman Z-Score. This places Amphastar Pharmaceuticals in the lower half of its industry. The industry median Altman Z-Score is 3.32. Amphastar Pharmaceuticals' value of 2.26 is 31.8% below this benchmark. Historically, Amphastar Pharmaceuticals' own Altman Z-Score has ranged from 2.21 to 7.02 over the past decade. While the company's 10-year median is 4.62 vs. the industry median of 3.32, Amphastar Pharmaceuticals has consistently been below the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Altman Z-Score for a Drug Manufacturers company?
The median Altman Z-Score among Drug Manufacturers companies is 3.32, based on 952 companies in the industry. Companies in the top quartile (top 25%) have a Altman Z-Score significantly above this median, while those in the bottom quartile fall well below. However, Altman Z-Score should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Amphastar Pharmaceuticals's current Altman Z-Score of 2.26 is 31.8% below the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Altman Z-Score mean?
A high Altman Z-Score can signal that a stock is expensive relative to its fundamentals. The Altman Z-score measures a company's bankruptcy risk. View historical data on Amphastar Pharmaceuticals and its competitors. For the Drug Manufacturers industry, the median Altman Z-Score is 3.32 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Amphastar Pharmaceuticals's current Altman Z-Score is 2.26, which is 51% below median its own 10-year median of 4.62. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Amphastar Pharmaceuticals stock overvalued right now?
Based on GuruFocus' analysis, Amphastar Pharmaceuticals (AMPH) is currently considered Significantly Undervalued. The stock's GF Value™ is $48.78, compared to a current price of $21.48 — trading 56% below its estimated fair value. The current Altman Z-Score is 2.26, which is 51% below median its 10-year median of 4.62 and 31.8% below the Drug Manufacturers industry median of 3.32. Amphastar Pharmaceuticals' overall GF Score™ is 83/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Altman Z-Score calculated?
Altman Z-Score is calculated from a company's financial statements. For Amphastar Pharmaceuticals (AMPH), the current Altman Z-Score is 2.26 as of Jun. 25, 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.
Is Amphastar Pharmaceuticals (AMPH) Overvalued in 2026?
Based on GuruFocus' analysis, Amphastar Pharmaceuticals stock appears to be undervalued.
The current stock price of $21.48 is trading 56% below its estimated GF Value™ of $48.78.
GuruFocus considers Amphastar Pharmaceuticals to be Significantly Undervalued.
Key valuation signals for AMPH:
Altman Z-Score: 2.26 (51% below median its 10-year median of 4.62)
GF Value™: $48.78 vs. price of $21.48 (56% below fair value)
Industry Position: 31.8% below the Drug Manufacturers median (#631 of 952)
No single metric tells the full story. See the AMPH stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Amphastar Pharmaceuticals Inc is a bio-pharmaceutical company focusing on developing, manufacturing, marketing, and selling technically challenging generic and proprietary injectable, inhalation, and intranasal products, as well as insulin active pharmaceutical ingredient (or insulin API products. The company's finished products are used in hospital or urgent care clinical settings and are contracted and distributed through group purchasing organizations and drug wholesalers. The company has one reportable segment: pharmaceutical products. Geographically, the business presence of the firm is seen in the United States, China, and France, of which the U.S. accounts for the majority of the revenue.
83GF Score
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