AMPH (Amphastar Pharmaceuticals) OCF Yield %: 17.88 (As of Jun. 25, 2026) — 208% Above Median


AMPH Amphastar Pharmaceuticals Inc AMPH
83 GF Score
Price $21.42
GF Value $48.78
Valuation Significantly Undervalued
! 5 Warning Signs
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What is Amphastar Pharmaceuticals OCF Yield %?

Amphastar Pharmaceuticals AMPH +1.93% 83 OCF Yield % is 17.88 as of Jun. 25, 2026, which is 208% above its 10-year median of 5.81. 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 1,005 Drug Manufacturers companies, Amphastar Pharmaceuticals ranks better than 91.64% on this metric.

OCF Yield % is calculated as Cash Flow from Operations divided by Market Capitalization. It is a financial solvency ratio that compares the operating cash flow a company is expected to earn against its market value.

As of today, Amphastar Pharmaceuticals's Trailing 12-Month Cash Flow from Operations is $168.9 Mil, and Market Cap is $944.5 Mil. Therefore, Amphastar Pharmaceuticals's OCF Yield % for today is 17.88%.

The historical rank and industry rank for Amphastar Pharmaceuticals's OCF Yield % or its related term are showing as below:

AMPH' s OCF Yield % Range Over the Past 10 Years
Min: 2.32   Med: 5.81   Max: 21.55
Current: 17.88


During the past 13 years, the highest OCF Yield % of Amphastar Pharmaceuticals was 21.55%. The lowest was 2.32%. And the median was 5.81%.

AMPH's OCF Yield % is ranked better than
91.64% of 1005 companies
in the Drug Manufacturers industry
Industry Median: 3.57 vs AMPH: 17.88

Amphastar Pharmaceuticals's OCF Margin % for the quarter that ended in Mar. 2026 was %.


Amphastar Pharmaceuticals OCF Yield % Explanation

Similar to Earnings Yield %, OCF Yield % is financial solvency ratio. A lower ratio suggests a less attractive investment, indicating that investors might not receive substantial returns in proportion to their investment. Conversely, a high operating cash flow yield signals that a company generates sufficient cash to comfortably meet its debts, obligations, and dividend payments, making it a promising investment choice.


Amphastar Pharmaceuticals OCF Yield % Related Terms


Amphastar Pharmaceuticals OCF Yield % Historical Data

* Premium members only.

The historical data trend for Amphastar Pharmaceuticals's OCF Yield % can be seen below:

* 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.

Amphastar Pharmaceuticals OCF Yield % Chart

Amphastar Pharmaceuticals Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
OCF Yield %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 8.82 6.62 6.17 12.07 12.77

Amphastar Pharmaceuticals Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
OCF Yield % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 10.15 13.34 17.03 10.75 21.88

AMPH vs ETON, ESPR, BIOA: OCF Yield % Comparison

For the Drug Manufacturers - Specialty & Generic subindustry, Amphastar Pharmaceuticals's OCF Yield %, along with its competitors' market caps and OCF Yield % 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 OCF Yield % vs Drug Manufacturers Industry

For the Drug Manufacturers industry and Healthcare sector, Amphastar Pharmaceuticals's OCF Yield % distribution charts can be found below:

* The bar in red indicates where Amphastar Pharmaceuticals's OCF Yield % falls into.


AMPH
83GF Score
Amphastar Pharmaceuticals Inc AMPH
OCF Yield % is just one metric. See GF Score™, valuation, warning signs, and more.
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Amphastar Pharmaceuticals OCF Yield % Calculation

OCF Yield % is a financial solvency ratio that compares the operating cash flow a company is expected to earn against its market value.

Amphastar Pharmaceuticals's OCF Yield % for the fiscal year that ended in Dec. 2025 is calculated as

OCF Yield %=Cash Flow from Operations / Market Cap
=156.115 / 1222.3731
=12.77%

Amphastar Pharmaceuticals's annualized OCF Yield % for the quarter that ended in Mar. 2026 is calculated as

OCF Yield %=Cash Flow from Operations * Annualized Factor / Market Cap
=47.84 * 4 / 874.43883
=21.88%

* 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.

Frequently Asked Questions Learn more about OCF Yield % →
What does a OCF Yield % of 17.88 mean?
Amphastar Pharmaceuticals (AMPH) has a OCF Yield % of 17.88 as of Jun. 25, 2026. OCF Yield is calculated as Cash Flow from Operations divided by Market Capitalization. View historical data on Amphastar Pharmaceuticals and its competitors. This is 208% above median its historical median of 5.81. Over the past decade, Amphastar Pharmaceuticals' OCF Yield % has ranged from 2.32 to 21.55. According to the industry distribution chart, Amphastar Pharmaceuticals ranks #84 out of 1005 companies in the Drug Manufacturers industry, placing it in the top 8.4%.
Is Amphastar Pharmaceuticals' OCF Yield % too high?
Amphastar Pharmaceuticals' current OCF Yield % of 17.88 is 208% above median its 10-year median of 5.81. Over the past 10 years, this metric has ranged from a low of 2.32 to a high of 21.55. The Drug Manufacturers industry median OCF Yield % is 3.57. Amphastar Pharmaceuticals' value of 17.88 is 400.8% above this industry median. Based on the distribution chart, Amphastar Pharmaceuticals ranks #84 out of 1005 companies in the Drug Manufacturers industry, which is in the top quartile — a strong position relative to peers. 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' OCF Yield % compare to ETON and ESPR?
According to the Drug Manufacturers industry distribution chart, Amphastar Pharmaceuticals ranks #84 out of 1005 companies for OCF Yield %. This places Amphastar Pharmaceuticals in the top 8% of its industry — outperforming the majority of peers. The industry median OCF Yield % is 3.57. Amphastar Pharmaceuticals' value of 17.88 is 400.8% above this benchmark. Historically, Amphastar Pharmaceuticals' own OCF Yield % has ranged from 2.32 to 21.55 over the past decade. While the company's 10-year median is 5.81 vs. the industry median of 3.57, Amphastar Pharmaceuticals has consistently been above 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 OCF Yield % for a Drug Manufacturers company?
The median OCF Yield % among Drug Manufacturers companies is 3.57, based on 1,005 companies in the industry. Companies in the top quartile (top 25%) have a OCF Yield % significantly above this median, while those in the bottom quartile fall well below. However, OCF Yield % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Amphastar Pharmaceuticals's current OCF Yield % of 17.88 is 400.8% above 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 OCF Yield % mean?
A high OCF Yield % can signal that a stock is expensive relative to its fundamentals. OCF Yield is calculated as Cash Flow from Operations divided by Market Capitalization. View historical data on Amphastar Pharmaceuticals and its competitors. For the Drug Manufacturers industry, the median OCF Yield % is 3.57 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Amphastar Pharmaceuticals's current OCF Yield % is 17.88, which is 208% above median its own 10-year median of 5.81. 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 $21.42 — trading 56.1% below its estimated fair value. The current OCF Yield % is 17.88, which is 208% above median its 10-year median of 5.81 and 400.8% above the Drug Manufacturers industry median of 3.57. 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 OCF Yield % calculated?
OCF Yield % is calculated from a company's financial statements. For Amphastar Pharmaceuticals (AMPH), the current OCF Yield % is 17.88 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 $21.42 is trading 56.1% below its estimated GF Value™ of $48.78. GuruFocus considers Amphastar Pharmaceuticals to be Significantly Undervalued.

Key valuation signals for AMPH:

  • OCF Yield %: 17.88 (208% above median its 10-year median of 5.81)
  • GF Value™: $48.78 vs. price of $21.42 (56.1% below fair value)
  • GF Score™: 83/100 with 5 warning signs
  • Industry Position: 400.8% above the Drug Manufacturers median (#84 of 1005)

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.
83GF Score

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OCF Yield % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$21.42
Price
$48.78
GF Value