Why Edwards Lifesciences (EW) Stock is Surging Today

NEW YORK (TheStreet) -- Edwards Lifesciences  (EW) surged after a U.S. District Court in Delaware granted a preliminary injunction to limit the sale of Medtronic's  (MDT) CoreValve system within the U.S.

The injunction was announced on Friday but goes into effect on April 22. CoreValve has been sold in Europe for several years and received FDA approval in January. A federal jury found in 2010 that CoreValve infringed on an Edwards patent. Edwards has sold a rival product called Sapien since 2011 and has battled CoreValve with patent litigation.

Edwards also received multiple analyst upgrades. CRT Capital upgraded the stock to "buy" and increased its price target to $87 from $79. J.P. Morgan  (JPM) upgraded the stock to "neutral."

The stock rose 13.82% to $83.06 at 11:32 a.m. on Monday. Nearly 4 million shares had changed hands, well above the average volume of 1,358,590.

Must Read: Warren Buffett's 10 Favorite Growth Stocks

STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more.

EW Chart

EW data by YCharts

STOCKS TO BUY: TheStreet Quant Ratings has identified a handful of stocks that can potentially TRIPLE in the next 12 months. Learn more.

Editor's Note: Any reference to TheStreet Ratings and its underlying recommendation does not reflect the opinion of TheStreet, Inc. or any of its contributors including Jim Cramer or Stephanie Link.

More from Markets

U.S. Crude Oil Hits Fresh 3-Year Highs as Gasoline Heads to $3 a Gallon

U.S. Crude Oil Hits Fresh 3-Year Highs as Gasoline Heads to $3 a Gallon

Stocks Waver Amid Progress on U.S.-China Trade; Dow Slips

Stocks Waver Amid Progress on U.S.-China Trade; Dow Slips

Jim Cramer: Schlumberger Predicted the Rise in Oil Prices

Jim Cramer: Schlumberger Predicted the Rise in Oil Prices

Jim Cramer on Zillow's New Business: Buying and Selling Homes

Jim Cramer on Zillow's New Business: Buying and Selling Homes

Jim Cramer on the Markets: It's Natural to Have Some Profit Taking

Jim Cramer on the Markets: It's Natural to Have Some Profit Taking