Big Movers This Morning (CLWR, LAVA, LULU, GIL)

In the late morning today, we’ve noted some sizable price moves on unusually heavy trading volume for four stocks: Clearwire Corp. (NASDAQ: CLWR), Magma Design Automation Inc. (NASDAQ: LAVA), Lululemon Athletica Inc. (NASDAQ: LULU), and Gildan Activewear Inc. (NYSE: GIL).

Clearwire shares are up more than 25%, to $2.23, in a 52-week range of $1.24-$6.80. Volume is already more than double the three-month daily average. Sprint Nextel Corp. (NYSE: S) has agreed to pay the company $1.6 billion over the next four years, calming liquidity fears that have been rattling the company. Clearwire now says it will make its $237 million December debt payment.

Magma Design’s shares are up more than 24%, at $7.12, in a 52-week range of $4.03-$8.50. Volume is more than 36 times the daily average already this morning. The company has agreed to be acquired by Synopsys Inc. (NASDAQ: SNPS) for $7.35/share, or about $507 million.

Lululemon shares are down nearly -11%, at $44.37, in a 52-week range of $25.82-$64.49. Volume is already about 5 times the daily average. The company issued a lukewarm earnings report this morning.

Gildan shares are down more than -28%, at $17.14, after posting a new 52-week low of $16.66 earlier this morning. The 52-week range is $16.66-$38.07. Volume is nearly 8 times the daily average so far this morning. The sports wear maker released weak fourth-quarter earnings this morning and a weaker-than-expected outlook for the 2012 first quarter and full fiscal year.