In late trading, the Standard & Poor’s stock index is down about 0.2% at just under 1300 points. Swimming against the tide, however, are top stocks Aeronvironment (NASDAQ: AVAV ), L3 Communications (NYSE: LLL), and Constellation Energy Partners (NYSE: CEP).

Aeronvironment shares are up over 20% on a positive analyst report.  Aeronvironment stock prices are well over $34, approaching a 52 week high of $35.96 for AVAV.

Also near its year high as a result of gains today is L3 Communications.  LLL stock is up nearly 5%, and L3 is close to its 52 week high of $87.68.  Volume is about three times the daily average for L3 Communications stock

Another big gainer, Constellation Energy Partners is up almost 9%. At nearly $3 a share, Constellation has rebounding dramatically from a 52-week low of $2.06 set just several weeks ago.

Losing the most in early session trading was Bluelinx Holdings (NYSE: BXC), a building products company, down about 15%.  Negative housing reports are clobbering stocks related to the homebuilding industry.

Also down was Koninklijke Philips Electronics (NYSE: PHG), falling by almost 11%.  PHG is nearing its year low $22.60.    The year  Volume is very heavy today for Koninklijke, more than six times the average so far.

In other big losers, Fsi International (NASDAQ: FSII) is down almost 24% today, trading under $3 a share.  Volume is four times the average already.  The year high for Fsi International was $5.41.  It is getting close to the year low of $2.78.

Jonathan Yates does not have nor will he open a position in any of these stocks.