n.a. (THOR)

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10 Stocks to Watch: Thoratec, JDS Uniphase

10 Stocks to Watch: Thoratec, JDS Uniphase

Thoratec shares are plunging in premarket trading Wednesday after the company gave a mixed full-year outlook.

Thoratec's CEO Discusses Q3 2011 Results - Earnings Call Transcript

Thoratec's CEO Discusses Q3 2011 Results - Earnings Call Transcript

Thoratec's CEO Discusses Q3 2011 Results - Earnings Call Transcript

JDS Uniphase, Thoratec: After-Hours Trading

JDS Uniphase, Thoratec: After-Hours Trading

JDS Uniphase shares surge in late trades after the company beats Wall Street expectations for its fiscal first quarter.

Thoratec Reaches New 52-Week High (THOR)

Thoratec Reaches New 52-Week High (THOR)

Thoratec Corporation (Nasdaq:THOR) hit a new 52-week high Monday as it is currently trading at $37.56, above its previous 52-week high of $37.55 with 353,100 shares traded as of 2:26 p.m. ET. Average volume has been 864,100 shares over the past 30 days.

Thoratec Reaches New 52-Week High (THOR)

Thoratec Reaches New 52-Week High (THOR)

Thoratec Corporation (Nasdaq:THOR) hit a new 52-week high Friday as it is currently trading at $37, above its previous 52-week high of $36.98 with 560,484 shares traded as of 1:50 p.m. ET. Average volume has been 847,900 shares over the past 30 days.

5 Stocks Poised for Breakouts

5 Stocks Poised for Breakouts

These stocks are setting up to break out and trade higher from current levels.

Thoratec's CEO Discusses Q2 2011 Results - Earnings Call Transcript

Thoratec's CEO Discusses Q2 2011 Results - Earnings Call Transcript

Thoratec's CEO Discusses Q2 2011 Results - Earnings Call Transcript

Thoratec Stock Gaps Up On Today's Open (THOR)

Thoratec Stock Gaps Up On Today's Open (THOR)

Shares of Thoratec Corporation (Nasdaq:THOR) were gapping up Monday morning with an open price 14.9% higher than Friday's closing price. The stock closed at $27.42 yesterday and opened today's trading at $31.51.

AT&T, Nokia, Jetblue: Analysts' New Ratings

AT&T, Nokia, Jetblue: Analysts' New Ratings

AT&T downgraded at UBS from Buy to Neutral. Jetblue downgraded at Soleil from Buy to Hold. Nokia upgraded at Morgan Keegan.

Strategic Diagnostics: Small-Cap Winner

Strategic Diagnostics: Small-Cap Winner

TheStreet presents its daily rundown of the winners and losers in the small-cap space

El Paso Electric: Upgrades, Downgrades

El Paso Electric: Upgrades, Downgrades

El Paso Electric is downgraded from Buy to Hold at Jefferies, which said the stock is already pricing in above-average earnings growth potential.

Protecting Your Home, Passive Investing, Technical Outlook

Protecting Your Home, Passive Investing, Technical Outlook

NEW YORK (TheStreet) -- Guests include Richard Soloway, CEO of Napco Security Technologies, Richard Ferri, author of "The Power of Passive Investing" and Gil Morales, managing director at MoKa Investors

10 Health Care Stocks With Up to 30% Upside

10 Health Care Stocks With Up to 30% Upside

These highly-rated large and mid-cap health care companies are growth plays with very strong sentiment among analysts.

Best Growth Companies in Growing Industries

Best Growth Companies in Growing Industries

To make money in stocks, follow broad growth trends, says Cabot Money Management's Dennis Wassung.

4 Dividend Stocks You Never Knew About

If a growth stock doesn't offer a dividend, you may have to take it yourself.

Volatility Spike Likelihood Raises Risk

Through options expiration, wait for the market to prove itself rather than increasing exposure right at resistance.

529 Plans, Market Movers, Health Care Ideas

Gregg Greenberg breaks down today's market action with guests Michael Gregory, portfolio manager for the Highland Capital Long/Short Fund, Ken Shreve, TheStreet's Market Movers portfolio manager and Ed Ferko, senior manager for Vanguard's College Savings Plan Group.

Goldman Sachs: Analysts' Upgrades, Downgrades

Goldman Sachs downgraded at BofA/Merrill to Neutral.

Sector Snap: Medical Device Makers Upgraded

Sector Snap: Medical Device Makers Upgraded

Analyst lowers Boston Scientific but upgrades 4 other medical device makers to 'Outperform'

Thoratec 3Q Profit Surges On Heart Pump Success

Thoratec 3Q Profit Surges On Heart Pump Success

Thoratec says 3Q profit surges on success of heart pump; guidance boosts shares

TSC Ratings' Updates: Thoratec

Ametek is downgraded; Home Bancshares is upgraded.

Five Health Stocks for a Sick Market

There defensive names are companies whose products sell no matter how bad the economy is.

Health Winners & Losers: Biogen

Health Winners & Losers: Biogen

Biogen sinks on Tysabri-related news.

Analysts' Upgrades, Downgrades: Amgen

Analysts' Upgrades, Downgrades: Amgen

See who made what calls.

Friday's Health Winners & Losers

ISTA Pharmaceuticals plunged following an FDA rejection, helping keep health stocks flat.

Thursday's Small-Cap Winners & Losers

Progen Pharma is one of several health stocks moving lower.

Today's Health Winners and Losers

Today's Health Winners and Losers

Aspreva and CryoLife advance after projecting strong first-quarter results.

Today's Health Winners and Losers

Myriad Genetics rises on better-than-expected second-quarter results.

Today's Health Winners and Losers

Thoratec falls as a weak outlook overshadows better-than-expected earnings.

Thoratec Chief Quitting

The company says Keith Grossman will step aside after a successor is named.