Top Percentage Gainers and Losers as of 12:15pm 6/24/11

1) Southern Union

: Shares of Southern Union are currently trading up 16.9% from yesterday's close to $39.93. The company has received an acquisition proposal from The Williams Companies

for $39 per share in cash. The deal is valued at 8.7 billion. Southern Union previously had a buyout offer from Energy Transfer

at $33 per share. 2) China Automotive Systems

: Shares of China Automotive are currently trading up 15.2% from yesterday's close to $8.65. The stock broke above its 50-day simple moving average (one year daily chart) in today's session. Shares have gained 27% since hitting a 52-week low of $6.63 on May 31st. 3) Oncothyreon

: Shares of Oncothyreon are currently trading up 9.1% from yesterday's close to $9.35. The stock is nearing its 52-week high of $9.44, which was set on June 21st. 4) Acura Pharmaceuticals

: Shares of Acura Pharmaceuticals are currently trading up 8.2% from yesterday's close to $4.03. The company's new drug, Oxecta, was approved for marketing by the FDA earlier this week. 5) Telestone Technologies

: Shares of Telestone Technologies are currently trading up 7.9% from yesterday's close to $6.01.

Sky-mobi

: Shares of Sky-mobi are currently trading up 6.6% from yesterday's close to $8.19. The stock has gained 53% over the past five trading sessions. Endologix

: Shares of Endologix are currently trading up 6.1% from yesterday's close to $9.04. The stock started the session in negative territory, but heavy buying volume began pushing shares up at 11:05am. The stock hit a 52-week high of $9.34 in today's action. CNinsure

: Shares of CNinsure are currently trading up 5.8% from yesterday's close to $15.27. Blackboard

: Shares of Blackboard are currently trading up 6.2% from yesterday's close to $43.30.

1) Pain Therapeutics

: Shares of Pain Therapeutics are currently trading down 39.7% from yesterday's close to $5.57. The Food and Drug Administration rejected the company's application for its pain drug, Remoxy. The product is a collaboration between Pfizer

, Pain Therapeutics, and Durect

. 2) Durect

: Shares of Durect are currently trading down 31.7% from yesterday's close to $2.11. The Food and Drug Administration rejected the company's application for its pain drug, Remoxy. The product is a collaboration between Pfizer, Pain Therapeutics, and Durect. 3) STR Holdings

: Shares of STR are currently trading down 15.9% from yesterday's close to $14.05. The company reported that it is expecting Q2 revenue of $98 to $101 million versus estimates of $105.63 million. STR forecast earnings of $0.30 to $0.32 versus estimates of $0.40. The company was downgraded from Buy to Accumulate by Craig-Hallum. 4) SuccessFactors

: Shares of SuccessFactors are currently trading down 13.6% from yesterday's close to $28.00. The stock broke below its 200-day simple moving average (one year daily chart) in today's session. Shares hit a six month low of $26.63 earlier in the day. 5) Micron Technology

: Shares of Micron Technology are currently trading down 12.4% from yesterday's close to $7.38. The company reported Q3 earnings of $0.07 per share versus estimates of $0.16 per share. Revenue came in at $2.13 billion versus estimates of $2.36 billion.

United Continental Holdings

: Shares of United Continental are currently trading down 9.8% from yesterday's close to $22.67. Brocade Communications Systems

: Shares of Brocade Communications are currently trading down 7.2% from yesterday's close to $6.19. Flowserve International

: Shares of Flowserve International are currently trading down 6.8% from yesterday's close to $3.16. Qihoo 360 Technology

: Shares of Qihoo 360 are currently trading down 6.2% from yesterday's close to $16.88.