Top Percentage Gainers and Losers as of 2pm 6/21/11

Best

1) China New Borun (NYSE: BORN): Shares of China New Borun are currently trading up 24.5% from yesterday's close to $4.89. A positive report regarding the company was published by Seeking Alpha yesterday. The article can be found here. The stock recently hit a 52-week low of $3.50 on June 13th.

2) China Transinfo Technology (NASDAQ: CTFO): Shares of China Transinfo Technology are currently trading up 19.6% from yesterday's close to $2.93. The company announced that its Chairman and CEO, Mr. Shudong Xia, will be purchasing up to $3 million common shares of China Transinfo on the open market over the next twelve months. Xia has already bought $2 million worth of stock this year. Shares hit a 52-week low of $2.07 in yesterday's trading session.

3) Wave Systems (NASDAQ: WAVX): Shares of Wave systems are currently trading up 16.7% from yesterday's close to $2.87. The stock broke above its 50-day simple moving average (one year daily chart) in today's session. Shares recently hit a 52-week low of $2.10 on June 16th. The next resistance level for the stock is its 200-day simple moving average, which is currently at $3.09.

4) Synthesis Energy Systems (NASDAQ: SYMX): Shares of Synthesis Energy Systems are currently trading up 14.3% from yesterday's close to $2.08. The stock has recently found support at its 200-day simple moving average (one year daily chart). Shares have lost 54% since hitting a 52-week high of $4.50 on April 20th.

5) Pharmerica (NYSE: PMC): Shares of Pharmerica are currently trading up 12.6% from yesterday's close to $13.41. The stock is reacting to the positive earnings report from Walgreens. Shares have gained 31% over the past two trading sessions and have broken above their 50-day simple moving average (one year daily chart) in today's action. The stock may be looking to make a run at its 52-week high of $15.52, which was set on June 28th.

Other Notable Gainers

VisionChina Media (NASDAQ: VISN): Shares of VisionChina Media are currently trading up 10% from yesterday's close to $2.76. The stock hit a 52-week low of $2.22 in yesterday's trading session.

China Gerui Advanced Materials (NASDAQ: CHOP): Shares of China Gerui Advanced Materials are currently trading up 12.1% from yesterday's close to $3.32. The stock recently hit a 52-week low of $2.82 on June 17th.

Harbin Electric (NASDAQ: HRBN): Shares of Harbin Electric are currently trading up 10.6% from yesterday's close to $14.77. The stock has gained 153% over the past four trading sessions.

DragonWave (NASDAQ: DRWI): Shares of DragonWave are currently trading up 9.4% from yesterday's close to $5.58. A report detailing the company was published by Next Inning Technology Research today. The stock has gained 15% over the past two trading sessions.

China Sky One Medical (NASDAQ: CSKI): Shares of China Sky One Medical are currently trading up 10% from yesterday's close to $2.20.

Worst

1) Dex One (NYSE: DEXO): Shares of Dex One are currently trading down 15% from yesterday's close to $2.45. The stock has already traded over two times its average daily volume. Shares broke below their 50-day simple moving average (one year daily chart) in today's action.

2) HealthStream (NASDAQ: HSTM): Shares of HealthStream are currently trading down 11.6% from yesterday's close to $10.76. The company was downgraded from Buy to Hold by Noble Financial. The stock has lost 20% since hitting a 52-week high of $13.58 on May 26th. Shares are nearing their 50-day moving average (one year daily chart), which is currently at $10.73.

3) GTx (NASDAQ: GTXI): Shares of GTx are currently trading down 9.6% from yesterday's close to $5.27. The company recently hit a 52-week high of $6.86 on June 9th. The stock has lost 23% since.

4) Susquehanna Bancshares (NASDAQ: SUSQ): Shares of Susquehanna Bancshares are currently trading down 8.4% from yesterday's close to $7.64. The company is acquiring Tower Bancorp (NASDAQ: TOBC) in a cash and stock transaction. The deal is valued at $343 million.

5) RiT Technologies (NASDAQ: RITT): Shares of RiT Technologies are currently trading down 7.5% from yesterday's close to $7.57. The stock has gained 154% over the past seven trading sessions.

Other Notable Losers

Acura Pharmaceuticals (NASDAQ: ACUR): Shares of Acura Pharmaceuticals are currently trading down 6.7% from yesterday's close to $4.20. A report regarding the company was published by MicroStockProfit.com this morning. Shares hit a 52-week high of $6.80 in yesterday's trading session. The stock has already traded nearly four times its average daily volume.

RenRen (NYSE: RENN): Shares of Renren are currently trading down 5.7% from yesterday's close to $7.17. A negative article from Seeking Alpha regarding the company's earnings report was published today. The article can be found here.

Walgreen (NYSE: WAG): Shares of Walgreen are trading down 5.8% from yesterday's close to $42.58. The company reported better than expected earnings, but reported that contract negotiations with Express Scripts (NASDAQ: ESRX) have broken down. The breakdown in talks could lead customers to look elsewhere to fill prescriptions.

Archillion Pharmaceuticals (NASDAQ: ACHN): Shares of Archillion Pharmaceuticals are currently trading down 5.9% from yesterday's close to $5.73. The company is planning to sell nine million shares of common stock in a public offering at an estimated price of $6.19 per share. Archillion plans to use the $52.1 million proceeds to perform clinical testing, for product advancement, and for general expenses.