How to Buy Amphastar Pharmaceuticals Stock
Amphastar Pharmaceuticals Inc
Amphastar Pharmaceuticals, Inc. , established in 1996 and based in Rancho Cucamonga, California, functions as a biopharmaceutical enterprise.
Amphastar Pharmaceuticals stock last closed at $19.61, down 0.15% from the previous day, and has decreased 14.22% in one year. It has overperformed other stocks in the Drug Manufacturers - Specialty & Generic industry by 0.19 percentage points. Amphastar Pharmaceuticals stock is currently +17.81% from its 52-week low of $16.65, and -37.28% from its 52-week high of $31.26.
As of Jul 6, 2026, there are 44.09M shares of AMPH outstanding. The market capitalization of AMPH is $864.66M. In the last 24 hours, 314,000 AMPH shares were traded.
How to Buy Amphastar Pharmaceuticals Stock
Not sure how to invest in Amphastar Pharmaceuticals stock? Here's how.
- Decide where to buy Amphastar Pharmaceuticals stock: You need to choose an online brokerage, but don't worry - we've tried dozens of online brokerages and apps to help you choose where to buy Amphastar Pharmaceuticals stock.
- Sign up for a brokerage account: Sign up for 0% commission trading with the highest-rated brokerage we've selected.
- Fund your investment account: Choose your method of payment and add your info.
- Evaluate Amphastar Pharmaceuticals stock: The Amphastar Pharmaceuticals ticker symbol is AMPH. Is Amphastar Pharmaceuticals stock a good investment? Should you buy shares of AMPH? How do AMPH's underlying business fundamentals look? Do top analysts think Amphastar Pharmaceuticals is a good buy? Why has AMPH's stock price moved recently? (Hint: Our stock market analysis tools can help you understand if AMPH is a good stock to buy).
- Execute your AMPH buy order: Decide if you will purchase AMPH shares at the current market price or use a limit order to purchase AMPH shares at a specific price.
- Keep an eye on your AMPH position: Create a watchlist to keep tabs on your new investment in Amphastar Pharmaceuticals shares.
Step 1: Decide where to buy Amphastar Pharmaceuticals stock
You need a brokerage account in order to access the NASDAQ market and buy AMPH shares.
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Open eToro AccountStep 2: Sign up for a brokerage account
Now that you've chosen your brokerage, the next step is to fill out some personal information so you can buy AMPH stock today.
How to Set Up a New Brokerage Account on eToro
- Click here to get started.eToro is a multi-asset investment platform. The value of your investments may go up or down. Your capital is at risk.
- Provide your personal info to create a new trading account.
- Submit your details by pressing the "Create Account" button. Get started with eToro today
Step 3: Fund your investment account
Now that you've opened your account on a investment app, you can securely and quickly fund your account:
Watch the walkthrough below for more details depositing funds into your brokerage account.
Step 4: Evaluate Amphastar Pharmaceuticals stock
Once you have figured out the best place to buy Amphastar Pharmaceuticals stock, it's important to analyze their stock before you invest, so you actually wrap your head around the risk and upside.
Amphastar Pharmaceuticals stock data
Amphastar Pharmaceuticals Overview
WallStreetZen was designed to help part-time investors do better fundamental analysis in minutes instead of hours.
You can view all of the due diligence checks on AMPH's stock page.
Is AMPH stock undervalued?
You can use a variety of different financial metrics, analyses, models, and charts to gauge AMPH's fair value.
Using relative valuations measures:
- AMPH could be undervalued based on its P/E ratio of 11.47x, relative to Drug Manufacturers - Specialty & Generic industry P/E ratio of -5.96x
- AMPH could be undervalued based on its P/B ratio of 1.12x, relative to Drug Manufacturers - Specialty & Generic industry P/B ratio of 1.59x
- AMPH may be undervalued based on its PEG ratio of 0.45x
You can access more valuation analysis on AMPH's stock here.
A quick look at AMPH Financials
Passed Health Checks:
- AMPH's operating cash flow of $168.88M allows it to safely service it's debt of $686.38M.
- There are more short-term assets than short-term liabilities on the AMPH balance sheet.
Failed Health Checks:
- AMPH earnings of $128.56M is not sufficient to cover its interest payments.
- Total AMPH debt is higher than 5 years ago, relative to shareholder equity.
- AMPH profit margin has gone down from 19.4% to 11% in the past year.
- AMPH has a relatively high debt to equity ratio of 1.13.
- There are more long-term liabilities than short-term assets on the AMPH balance sheet.
Is it a good time to buy AMPH stock, according to Wall Street analysts?
Out of 6 Equities analysts who track AMPH, the consensus analyst rating on Amphastar Pharmaceuticals is a Hold
It's important to note that analyst forecasts are not stock recommendations, nor are they financial advice.
Most Recent AMPH Analyst Recommendations
Serge Belanger, a top 2% analyst from Needham maintains AMPH with a buy rating and lowers their AMPH price target from $34.00 to $30.00, on Feb 27, 2026.
You can dive deeper into what analysts are forecasting on the Amphastar Pharmaceuticals stock forecast page.
AMPH Technicals
AMPH Growth Numbers
Last year, AMPH earnings were $79.23M. In the last five year, AMPH's earnings have gone up by 95.42% per year. This was faster than the Drug Manufacturers - Specialty & Generic industry average of 5.2%.
Last year, AMPH revenue was $720.53M. In the last 5 year, AMPH's revenue has gone up by 14.37% per year. This was faster than the Drug Manufacturers - Specialty & Generic industry average of 9.41%.
Dig into AMPH's earnings and revenue performance here.
Who is buying/selling AMPH?
In the past year, insiders at AMPH have sold more shares than they have bought.
Howard Lee, Director of AMPH, was the latest AMPH insider to sell. They sold $14,188.05 worth of AMPH shares on Jun 2, 2026.
Learn more about who owns AMPH shares here.
Does AMPH provide a stable income stream?
No, Amphastar Pharmaceuticals doesn't provide an income stream by paying out dividends.
AMPH Social Trading Data
One of the primary reasons eToro is our top-rated brokerage is because of its social trading community.
Click below to learn what other investors have to say.
Step 5: Execute your AMPH buy order
You have two main types of orders:
- Market order: A market order is an order to buy or sell a security at the best available price.
Market orders are mostly fine. - Limit order: A limit order allows you to buy or sell a stock at a specific price (or better).
If you want to be certain you're buying or selling at a specific price, use a limit order.
Press the Open button and your broker will execute your order.
If you require additional help investing in stocks on eToro, click the how to video below:
Step 6: Keep an eye on your AMPH position
Now that you own some AMPH stock, you'll want to stay up-to-date on your shares.
Start a watchlist to keep track of your AMPH stock.
AMPH Feed
How to Buy Stock in Amphastar Pharmaceuticals
To summarize, here are the 6 steps for buying Amphastar Pharmaceuticals stock:
- Decide where to buy Amphastar Pharmaceuticals stock
- Sign up for a brokerage account
- Fund your investment account
- Evaluate Amphastar Pharmaceuticals stock
- Execute your AMPH buy order
- Keep an eye on your AMPH position
If you are looking for a online brokerage, eToro is our favorite venue.
Get Started with eToro TodayIf you would like to track your investment in Amphastar Pharmaceuticals, click below.
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