This page has not been authorized, sponsored, or otherwise approved or endorsed by the companies represented herein. Each of the company logos represented herein are trademarks of Microsoft Corporation; Dow Jones & Company; Nasdaq, Inc.; Forbes Media, LLC; Investor's Business Daily, Inc.; and Morningstar, Inc.
Copyright 2025 Zacks Investment Research | 101 N Wacker Drive, Floor 15, Chicago, IL 60606
At the center of everything we do is a strong commitment to independent research and sharing its profitable discoveries with investors. This dedication to giving investors a trading advantage led to the creation of our proven Zacks Rank stock-rating system. Since 1988 it has more than doubled the S&P 500 with an average gain of +23.75% per year. These returns cover a period from January 1, 1988 through July 7, 2025. Zacks Rank stock-rating system returns are computed monthly based on the beginning of the month and end of the month Zacks Rank stock prices plus any dividends received during that particular month. A simple, equally-weighted average return of all Zacks Rank stocks is calculated to determine the monthly return. The monthly returns are then compounded to arrive at the annual return. Only Zacks Rank stocks included in Zacks hypothetical portfolios at the beginning of each month are included in the return calculations. Zacks Ranks stocks can, and often do, change throughout the month. Certain Zacks Rank stocks for which no month-end price was available, pricing information was not collected, or for certain other reasons have been excluded from these return calculations. Zacks may license the Zacks Mutual Fund rating provided herein to third parties, including but not limited to the issuer.
Visit Performance Disclosure for information about the performance numbers displayed above.
Visit www.zacksdata.com to get our data and content for your mobile app or website.
Real time prices by BATS. Delayed quotes by Sungard.
NYSE and AMEX data is at least 20 minutes delayed. NASDAQ data is at least 15 minutes delayed.
This site is protected by reCAPTCHA and the Google Privacy Policy, DMCA Policy and Terms of Service apply.
View All Zacks #1 Ranked Stocks
Zacks News
Amphastar Pharmaceuticals (AMPH) to Report Q1 Results: Wall Street Expects Earnings Growth
by Zacks Equity Research
Amphastar (AMPH) doesn't possess the right combination of the two key ingredients for a likely earnings beat in its upcoming report. Get prepared with the key expectations.
MNK or AMPH: Which Is the Better Value Stock Right Now?
by Zacks Equity Research
MNK vs. AMPH: Which Stock Is the Better Value Option?
MNK vs. AMPH: Which Stock Is the Better Value Option?
by Zacks Equity Research
MNK vs. AMPH: Which Stock Is the Better Value Option?
MNK vs. AMPH: Which Stock Should Value Investors Buy Now?
by Zacks Equity Research
MNK vs. AMPH: Which Stock Is the Better Value Option?
Amphastar Pharmaceuticals (AMPH) Beats Q4 Earnings and Revenue Estimates
by Zacks Equity Research
Amphastar (AMPH) delivered earnings and revenue surprises of 30.00% and 18.85%, respectively, for the quarter ended December 2018. Do the numbers hold clues to what lies ahead for the stock?
MNK vs. AMPH: Which Stock Should Value Investors Buy Now?
by Zacks Equity Research
MNK vs. AMPH: Which Stock Is the Better Value Option?
MNK vs. AMPH: Which Stock Should Value Investors Buy Now?
by Zacks Equity Research
MNK vs. AMPH: Which Stock Is the Better Value Option?
MNK vs. AMPH: Which Stock Should Value Investors Buy Now?
by Zacks Equity Research
MNK vs. AMPH: Which Stock Is the Better Value Option?
MNK vs. AMPH: Which Stock Should Value Investors Buy Now?
by Zacks Equity Research
MNK vs. AMPH: Which Stock Is the Better Value Option?
BHC vs. AMPH: Which Stock Is the Better Value Option?
by Zacks Equity Research
BHC vs. AMPH: Which Stock Is the Better Value Option?
Amphastar Pharmaceuticals (AMPH) Catches Eye: Stock Jumps 6.7%
by Zacks Equity Research
Amphastar Pharmaceuticals (AMPH) saw a big move last session, as its shares jumped nearly 7% on the day, amid huge volumes.
BHC or AMPH: Which Is the Better Value Stock Right Now?
by Zacks Equity Research
BHC vs. AMPH: Which Stock Is the Better Value Option?
Amphastar Pharmaceuticals (AMPH) Matches Q3 Earnings Estimates
by Zacks Equity Research
Amphastar (AMPH) delivered earnings and revenue surprises of 0.00% and 1.37%, respectively, for the quarter ended September 2018. Do the numbers hold clues to what lies ahead for the stock?
MNK or AMPH: Which Is the Better Value Stock Right Now?
by Zacks Equity Research
MNK vs. AMPH: Which Stock Is the Better Value Option?
MNK or AMPH: Which Is the Better Value Stock Right Now?
by Zacks Equity Research
MNK vs. AMPH: Which Stock Is the Better Value Option?
AKRX vs. AMPH: Which Stock Should Value Investors Buy Now?
by Zacks Equity Research
AKRX vs. AMPH: Which Stock Is the Better Value Option?
AKRX vs. AMPH: Which Stock Should Value Investors Buy Now?
by Zacks Equity Research
AKRX vs. AMPH: Which Stock Is the Better Value Option?
MNK vs. AMPH: Which Stock Should Value Investors Buy Now?
by Zacks Equity Research
MNK vs. AMPH: Which Stock Is the Better Value Option?
Amphastar Pharmaceuticals (AMPH) Misses Q2 Earnings Estimates
by Zacks Equity Research
Amphastar (AMPH) delivered earnings and revenue surprises of -62.50% and 10.87%, respectively, for the quarter ended June 2018. Do the numbers hold clues to what lies ahead for the stock?
AGN vs. AMPH: Which Stock Is the Better Value Option?
by Zacks Equity Research
AGN vs. AMPH: Which Stock Is the Better Value Option?
New Strong Sell Stocks for June 14th
by Zacks Equity Research
Here are 5 stocks added to the Zacks Rank #5 (Strong Sell) List today:
Moving Average Crossover Alert: Amphastar Pharmaceuticals, Inc. (AMPH)
by Zacks Equity Research
Moving Average Crossover Alert: Amphastar Pharmaceuticals, Inc. (AMPH)
New Strong Sell Stocks for June 1st
by Zacks Equity Research
Here are 5 stocks added to the Zacks Rank #5 (Strong Sell) List today:
New Strong Sell Stocks for May 29th
by Zacks Equity Research
Here are 5 stocks added to the Zacks Rank #5 (Strong Sell) List today:
New Strong Sell Stocks for May 22nd
by Zacks Equity Research
Here are 5 stocks added to the Zacks Rank #5 (Strong Sell) List today: