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Why Zogenix Inc. Shares Temporarily Spiked Higher

http://www.fool.com/investing/general/2013/10/28/why-zogenix-inc-shares-temporarily-spiked-higher.aspx

Sean Williams
October 28, 2013

Although we don't believe in timing the market or panicking over market movements, we do like to keep an eye on big changes -- just in case they're material to our investing thesis.

What: Shares of Zogenix (NASDAQ: ZGNX), a biopharmaceutical developer of therapies to treat central nervous system disorders and pain, spiked higher by as much as 23% early in the trading session after receiving a price target hike from research firm William Blair. Zogenix has since given up all of its gains and is now hugging the flatline as of this writing.

So what: Before the opening bell, William Blair maintained its rating of outperform on Zogenix shares