Top Percentage Gainers and Losers as of 12:15pm 6/22/11

Best

1) AeroVironment (NASDAQ: AVAV): Shares of AeroVironment are currently trading up 19.2% from yesterday's close to $34.10. The company reported Q4 earnings of $0.79 per share versus estimates of $0.69 per share. Revenue came in at $106.1 million versus estimates of $99 million. AeroVironment reported fiscal year 2012 earnings guidance of $1.28 to $1.35 per share on revenue of $321 to $336 million. Estimates were of $1.24 per share on $319 million in revenue.

2) China Green Agriculture (NYSE: CGA): Shares of China Green Agriculture are currently trading up 17.9% from yesterday's close to $5.00. The stock hit a 52-week low of $3.43 in yesterday's trading session.

3) Asia Entertainment & Resources (NASDAQ: AERL): Shares of Asia Entertainment & Resources are currently trading up 17.1% from yesterday's close to $6.57. The company's Board of Directors authorized a semi-annual cash dividend of $0.10 per common share. Asia Entertainment also enacted a $2 million share repurchase program.

4) Sky-mobi (NASDAQ: MOBI): Shares of Sky-mobi are currently trading up 14.5 % from yesterday's close to $6.77. The stock started out the day in negative territory, but heavy buying volume began pushing shares higher at 9:40am.

5) Spartan Motors (NASDAQ: SPAR): Shares of Spartan Motors are currently trading up 15.2% from yesterday's close to $5.07. The company was initiated with a Buy at BB&T Capital Markets. A positive article regarding Spartan was published by Seeking Alpha yesterday.

Other Notable Gainers

ReneSola (NYSE: SOL): Shares of ReneSola are currently trading up 13.5% from yesterday's close to $4.95. A positive article regarding the company was published today by Seeking Alpha. The stock hit a 52-week low of $4.33 in yesterday's trading session.

Hanwha SolarOne (NASDAQ: HSOL): Shares of Hanwha SolarOne are currently trading up 12.3% from yesterday's close to $5.89.

Lihua International (NASDAQ: LIWA): Shares of Lihua International are currently trading up 11% from yesterday's close to $6.65.

Worst

1) FSI International (NASDAQ: FSII): Shares of FSI International are currently trading down 20.6% from yesterday's close to $2.92. The company reported Q3 sales of $25.6 million versus $28.7 million for the same period last year. Earnings came in at $0.10 per share versus $0.18 per share for the same period last year. Analysts were looking for earnings of $0.07 per share. FSI is anticipating Q4 sales of $25 to $30 million versus estimates of $32 million.

2) Koninklijke Philips Electronics (NYSE: PHG): Shares of Koninklijke Philips Electronics are currently trading down 9.7% from yesterday's close to $23.50. The company warned that margin pressure, higher-than-anticipated marketing costs, and weak demand will negatively impact its Q2 earnings. Koninklijke was cut from Buy to Hold by S&P Equity Research.

3) La-Z-Boy (NYSE: LZB): Shares of La-Z-Boy are currently trading down 8.9% from yesterday's close to $9.93. A report featuring La-Z-Boy was published by Zacks Equity Research (Zacks.com) today. The company was cut from Buy to Hold by Wall Street Strategies.

4) Wave systems (NASDAQ: WAVX): Shares of Wave Systems are currently trading down 6.7% from yesterday's close to $2.78. The company announced plans to offer up to $30 million in additional mixed securities. Wave Systems filed a $30 million shelf registration statement with the Securities and Exchange Commission.

5) Adobe Systems (NASDAQ: ADBE): Shares of Adobe Systems are currently trading down 6.1% from yesterday's close to $30.04. The company reported earnings of $0.55 per share versus estimates of $0.51 per share. Revenue came in at $1.023 billion versus estimates of $995 million. Q3 earnings guidance came in at $0.50 to $0.56 per share versus estimates of $0.54 per share. Revenue guidance came in at $1 to $1.05 billion versus estimates of $1.02 billion.

Other Notable Losers

Sina (NASDAQ: SINA): Shares of Sina are currently trading down 5% from yesterday's close to $87.35.

Origin Agritech (NASDAQ: SEED): Shares of Origin Agritech are currently trading down 4.7% from yesterday's close to $4.72.