AMPH (Amphastar Pharmaceuticals) 1-Year Sharpe Ratio: -0.03 (As of Jul. 18, 2026)

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AMPH Amphastar Pharmaceuticals Inc AMPH
82 GF Score
Price $19.75
GF Value $48.94
Valuation Significantly Undervalued
! 4 Warning Signs
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What is Amphastar Pharmaceuticals 1-Year Sharpe Ratio?

Amphastar Pharmaceuticals AMPH -0.58% 82 1-Year Sharpe Ratio is -0.03 as of Jul. 18, 2026. GuruFocus rates AMPH with a GF Score™ of 82/100 and a GF Value™ of $48.94 (Significantly Undervalued). The stock has 4 warning signs investors should review.

The 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk over the past year. As of today (2026-07-18), Amphastar Pharmaceuticals's 1-Year Sharpe Ratio is -0.03.

Amphastar Pharmaceuticals  (NAS:AMPH) 1-Year Sharpe Ratio Explanation

The 1-Year Sharpe Ratio inidicates the risk-adjusted return of an investment over the past year. It is calculated as the annualized result of the average monthly excess return divided by its standard deviation over the past year. The monthly excess return is the monthly investment return minus the monthly risk-free rate (typically the 10-year Treasury Constant Maturity Rate). If the risk-free rate for a specific region is not available, U.S. data is used by default.

The greater a portfolio's Sharpe Ratio, the better its risk-adjusted performance. A negative Sharpe Ratio means the risk-free rate is greater than the portfolio’s historical or projected return, or else the portfolio's return is expected to be negative.

Amphastar Pharmaceuticals 1-Year Sharpe Ratio Related Terms

AMPH vs ETON, PCRX, BIOA: 1-Year Sharpe Ratio Comparison

For the Drug Manufacturers - Specialty & Generic subindustry, Amphastar Pharmaceuticals's 1-Year Sharpe Ratio, along with its competitors' market caps and 1-Year Sharpe Ratio 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 1-Year Sharpe Ratio vs Drug Manufacturers Industry

For the Drug Manufacturers industry and Healthcare sector, Amphastar Pharmaceuticals's 1-Year Sharpe Ratio distribution charts can be found below:

* The bar in red indicates where Amphastar Pharmaceuticals's 1-Year Sharpe Ratio falls into.


AMPH
82GF Score
Amphastar Pharmaceuticals Inc AMPH
1-Year Sharpe Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Amphastar Pharmaceuticals 1-Year Sharpe Ratio Calculation

The 1-Year Sharpe Ratio measures the performance of an investment such as a stock or portfolio compared to a risk-free asset. A stock / portfolio's 1-Year Sharpe Ratio can be calculated by dividing the difference between the one-year returns of the investment and the risk-free rate, by the standard deviation of the investment returns over one year.

Frequently Asked Questions Learn more about 1-Year Sharpe Ratio →
What does a 1-Year Sharpe Ratio of -0.03 mean?
Amphastar Pharmaceuticals (AMPH) has a 1-Year Sharpe Ratio of -0.03 as of Jul. 18, 2026. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for Amphastar Pharmaceuticals and its competitors.
Is Amphastar Pharmaceuticals' 1-Year Sharpe Ratio too high?
Amphastar Pharmaceuticals' current 1-Year Sharpe Ratio is -0.03. Overall, Amphastar Pharmaceuticals has a GF Score™ of 82/100 and is considered Significantly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Amphastar Pharmaceuticals' 1-Year Sharpe Ratio compare to ETON and PCRX?
Amphastar Pharmaceuticals' 1-Year Sharpe Ratio of -0.03 can be compared against companies in the Drug Manufacturers industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good 1-Year Sharpe Ratio for a Drug Manufacturers company?
A good 1-Year Sharpe Ratio depends on the Drug Manufacturers industry context. However, 1-Year Sharpe Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high 1-Year Sharpe Ratio mean?
A high 1-Year Sharpe Ratio can signal that a stock is expensive relative to its fundamentals. 1-Year Sharpe Ratio measures the additional return that an investor receives per unit of increase in risk. View historical data for Amphastar Pharmaceuticals and its competitors. Amphastar Pharmaceuticals's current 1-Year Sharpe Ratio is -0.03. 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 $48.94, compared to a current price of $19.75 — trading 59.7% below its estimated fair value. The current 1-Year Sharpe Ratio is -0.03. Amphastar Pharmaceuticals' overall GF Score™ is 82/100 with 4 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is 1-Year Sharpe Ratio calculated?
1-Year Sharpe Ratio is calculated from a company's financial statements. For Amphastar Pharmaceuticals (AMPH), the current 1-Year Sharpe Ratio is -0.03 as of Jul. 18, 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 $19.75 is trading 59.7% below its estimated GF Value™ of $48.94. GuruFocus considers Amphastar Pharmaceuticals to be Significantly Undervalued.

Key valuation signals for AMPH:

  • 1-Year Sharpe Ratio: -0.03
  • GF Value™: $48.94 vs. price of $19.75 (59.7% below fair value)
  • GF Score™: 82/100 with 4 warning signs

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 Business Description

Other Exchanges 29A:Germany
Address 11570 6th Street, Rancho Cucamonga, CA, USA, 91730
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.
82GF Score

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1-Year Sharpe Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$19.75
Price
$48.94
GF Value