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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.
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Zacks News
Why Is Jazz (JAZZ) Down 18% Since Last Earnings Report?
by Zacks Equity Research
Jazz (JAZZ) reported earnings 30 days ago. What's next for the stock? We take a look at earnings estimates for some clues.
Jazz's (JAZZ) Xyrem Follow-On Candidate NDA Gets FDA Acceptance
by Zacks Equity Research
The FDA accepts Jazz's (JAZZ) regulatory application seeking approval for JZP-258, a low sodium formulation of Xyrem in the United States.
Jazz Pharma (JAZZ) Surpasses Q4 Earnings & Sales Estimates
by Zacks Equity Research
Jazz Pharmaceuticals (JAZZ) beats fourth-quarter 2019 earnings and revenue estimates. It issues guidance for 2020.
Jazz Pharmaceuticals (JAZZ) Q4 Earnings and Revenues Top Estimates
by Zacks Equity Research
Jazz (JAZZ) delivered earnings and revenue surprises of 6.25% and 3.23%, respectively, for the quarter ended December 2019. Do the numbers hold clues to what lies ahead for the stock?
What Awaits Jazz Pharmaceuticals (JAZZ) in Q4 Earnings?
by Zacks Equity Research
Progress of its pipeline candidates and launch of Sunosi is likely to have increased Jazz Pharmaceuticals (JAZZ) operating expenses in the fourth quarter. Xyrem likely to have continued strong demand trend.
ImmunoGen (IMGN) Q4 Earnings & Sales Beat, Shares Rally
by Zacks Equity Research
ImmunoGen (IMGN) reports fourth-quarter results with earnings and revenues beating estimates.
Jazz (JAZZ) Submits NDA for Xyrem Follow-On Candidate JZP-258 (Revised)
by Zacks Equity Research
Jazz (JAZZ) files regulatory application seeking approval for JZP-258, a low sodium formulation of Xyrem, in the United States.
Why Jazz (JAZZ) Could Beat Earnings Estimates Again
by Zacks Equity Research
Jazz (JAZZ) has an impressive earnings surprise history and currently possesses the right combination of the two key ingredients for a likely beat in its next quarterly report.
Jazz (JAZZ) Submits NDA for Xyrem Follow-On Candidate JZP-258
by Zacks Equity Research
Jazz (JAZZ) files regulatory application seeking approval for JZP-258, a low sodium formulation of Xyrem, in the United States.
Jazz's (JAZZ) New Sleep Drug Sunosi Gets Approval in Europe
by Zacks Equity Research
Jazz (JAZZ) receives approval for Sunosi as a treatment for excessive daytime sleepiness in narcolepsy or obstructive sleep apnea patients in Europe.
JAZZ vs. ZTS: Which Stock Is the Better Value Option?
by Zacks Equity Research
JAZZ vs. ZTS: Which Stock Is the Better Value Option?
Jazz Enrolls First Patient in Phase II/III Leukemia Study
by Zacks Equity Research
Jazz (JAZZ) begins enrollment in the phase II/III study evaluating JZP-458 for treating pediatric and adult patients with acute lymphoblastic leukemia, hypersensitive to E. coli-derived asparaginases
Zacks.com featured highlights include: Lithia Motors, Marathon Petroleum, Meritage Homes, Jazz Pharmaceuticals and Barclays PLC
by Zacks Equity Research
Zacks.com featured highlights include: Lithia Motors, Marathon Petroleum, Meritage Homes, Jazz Pharmaceuticals and Barclays PLC
7 Impressive Growth Stocks to Buy for 2020
by Debanjana Dey
The prospects of growth stocks appear bright for 2020, making the following companies attractive bets.
Are Investors Undervaluing Jazz Pharmaceuticals (JAZZ) Right Now?
by Zacks Equity Research
Here at Zacks, our focus is on the proven Zacks Rank system, which emphasizes earnings estimates and estimate revisions to find great stocks. Nevertheless, we are always paying attention to the latest value, growth, and momentum trends to underscore strong picks.
5 High Earnings Yield Stocks for a Standout Portfolio
by Zacks Equity Research
If you are not sure whether to invest your money in bonds or stocks, a key parameter that can show you the right direction is earnings yield.
Create a Value-Based Portfolio With These 4 Low P/CF Stocks
by Sumit Singh
Investing in stocks based on value analysis is generally considered one of the best practices. In value investing, investors pick stocks that are usually cheap but fundamentally sound.
Is Jazz Pharmaceuticals (JAZZ) Outperforming Other Medical Stocks This Year?
by Zacks Equity Research
Is (JAZZ) Outperforming Other Medical Stocks This Year?
Jazz (JAZZ) Hits 52-Week High, Can the Run Continue?
by Zacks Equity Research
Jazz (JAZZ) is at a 52-week high, but can investors hope for more gains in the future? We take a look at the company's fundamentals for clues.
5 Low Price-to-Book Value Stocks to Buy as 2020 Nears
by Kinjel Shah
P/B ratio is emerging as a convenient tool for identifying low-priced stocks with high-growth prospects.
JAZZ vs. ZTS: Which Stock Is the Better Value Option?
by Zacks Equity Research
JAZZ vs. ZTS: Which Stock Is the Better Value Option?
Zoetis Surges 45.3% YTD on Strong Portfolio & New Approvals
by Zacks Equity Research
Zoetis (ZTS) surges on strong performance year to date, backed by a solid portfolio and prudent acquisitions.
Should Value Investors Buy Jazz Pharmaceuticals (JAZZ) Stock?
by Zacks Equity Research
Here at Zacks, our focus is on the proven Zacks Rank system, which emphasizes earnings estimates and estimate revisions to find great stocks. Nevertheless, we are always paying attention to the latest value, growth, and momentum trends to underscore strong picks.
6 Low Price-to-Book Value Stocks to Buy in December
by Kinjel Shah
P/B ratio is emerging as a convenient tool for identifying low-priced stocks with high-growth prospects.
Zacks.com featured highlights include: Quanta Services, Alexion Pharmaceuticals, Jazz Pharmaceuticals and Changyou.com
by Zacks Equity Research
Zacks.com featured highlights include: Quanta Services, Alexion Pharmaceuticals, Jazz Pharmaceuticals and Changyou.com