Stocks to Watch for 6/23/11: Fresh 52 Week Highs and Lows

Stocks trading at or near 52-week highs and lows provide excellent trading opportunities, as volatility tends to increase at such levels.

The following stocks hit new 52-week highs in Wednesday's trading session:

1) Entegris (NASDAQ: ENTG): Shares of Entegris hit a 52-week high of $9.83 in Wednesday's trading session. The stock closed at $9.64. The year-to-date performance of Entegris has been a gain of 29%.

2) Tractor Supply Company (NASDAQ: TSCO): Shares of Tractor Supply hit a 52-week high of $65.80 in Wednesday's trading session. The stock closed at $65.03. The year-to-date performance of Tractor Supply has been a gain of 35%.

3) ZAGG Incorporated (NASDAQ: ZAGG): Shares of ZAGG hit a 52-week high of $15.30 in Wednesday's trading session. The stock closed at $14.94. The year-to-date performance of ZAGG has been a gain of 96%.

4) GT Solar International (NASDAQ: SOLR): Shares of GT Solar International hit a 52-week high of $14.63 in Wednesday's trading session. The stock closed at $14.35. The year-to-date performance of GT Solar has been a gain of 57%.

5) Cash America International (NYSE: CSH): Shares of Cash America hit a 52-week high of $54.27 in Wednesday's trading session. The stock closed at $54.02. The year-to-date performance of Cash America has been a gain of 46%.

6) L-3 Communications (NYSE: LLL): Shares of L-3 Communications hit a 52-week high of $87.68 in Wednesday's trading session. The stock closed at $86.21. The year-to-date performance of L-3 Communications has been a gain of 24%.

7) ONEOK (NYSE: OKE): Shares of ONEOK hit a 52-week high of $72.48 in Wednesday's trading session. The stock closed at $72.00. The year-to-date performance of ONEOK has been a gain of 31%.

8) Robbins & Myers (NYSE: RBN): Shares of Robbins & Myers hit a 52-week high of $49.34 in Wednesday's trading session. The stock closed at $48.62. The year-to-date performance of Robbins & Myers has been a gain of 36%.

9) Tyler Technologies (NYSE: TYL): Shares of Tyler Technologies hit a 52-week high of $25.64 in Wednesday's trading session. The stock closed at $25.59. The year-to-date performance of Tyler Technologies has been a gain of 23%.

10) China Kanghui Holdings (NYSE: KH): Shares of China Kanghui hit a 52-week high of $26.50 in Wednesday's trading session. The stock closed at $25.73. The year-to-date performance of China Kanghui has been a gain of 39%.

11) Avago Technologies (NASDAQ: AVGO): Shares of Avago Technologies hit a 52-week high of $36.29 in Wednesday's trading session. The stock closed at $36.00. The year-to-date performance of Avago has been a gain of 27%.

12) First Republic Bank (NYSE: FRC): Shares of First Republic Bank hit a 52-week high of $34.75 in Wednesday's trading session. The stock closed at $34.44. The year-to-date performance of First Republic has been a gain of 18%.

13) Digi International (NASDAQ: DGII): Shares of Digi International hit a 52-week high of $13.03 in Wednesday's trading session. The stock closed at $13.00. The year-to-date performance of Digi International has been a gain of 17%.

14) Sally Beauty Holdings (NYSE: SBH): Shares of Sally Beauty hit a 52-week high of $17.80 in Wednesday's trading session. The stock closed at $17.23. The year-to-date performance of Sally Beauty has been a gain of 19%.

15) Humana (NYSE: HUM): Shares of Humana hit a 52-week high of $83.40 in Wednesday's trading session. The stock closed at $81.62. The year-to-date performance of Humana has been a gain of 49%.

The following stocks hit new 52-week lows in Wednesday's trading session:

1) Ballantyne Strong (NYSE: BTN): Shares of Ballantyne Strong hit a 52-week low of $4.73 in Wednesday's trading session. The stock closed at $4.75. The year-to-date performance of Ballantyne has been a loss of 39%.

2) Applied Micro Circuits (NASDAQ: AMCC): Shares of Applied Micro Circuits hit a 52-week low of $8.24 in Wednesday's trading session. The stock closed at $8.29. The year-to-date performance of Applied Micro has been a loss of 22%.

3) Origin Agritech (NASDAQ: SEED): Shares of Origin Agritech hit a 52-week low of $4.11 in Wednesday's trading session. The stock closed at $4.13. The year-to-date performance of Origin Agritech has been a loss of 61%.

4) Conceptus (NASDAQ: CPTS): Shares of Conceptus hit a 52-week low of $11.16 in Wednesday's trading session. The stock closed at $11.19. The year-to-date performance of Conceptus has been a loss of 19%.

5) Logitech International (NASDAQ: LOGI): Shares of Logitech International hit a 52-week low of $11.11 in Wednesday's trading session. The stock closed at $11.11. The year-to-date performance of Logitech has been a loss of 40%.

6) Sun Healthcare Group (NASDAQ: SUNH): Shares of Sun Healthcare hit a 52-week low of $7.90 in Wednesday's trading session. The stock closed at $7.99. The year-to-date performance of Sun Healthcare has been a loss of 37%.

7) Lloyds Banking Group (NYSE: LYG): Shares of Lloyds Banking hit a 52-week low of $2.96 in Wednesday's trading session. The stock closed at $2.98. The year-to-date performance of Lloyds Banking has been a loss of 27%.

8) Koninklijke Philips Electronics (NYSE: PHG): Shares of Koninklijke Philips Electronics hit a 52-week low of $22.60 in Wednesday's trading session. The stock closed at $23.36. The year-to-date performance of Koninklijke Philips has been a loss of 21%.

9) Platinum Underwriters (NYSE: PTP): Shares of Platinum Underwriters hit a 52-week low of $32.74 in Wednesday's trading session. The stock closed at $32.88. The year-to-date performance of Platinum Underwriters has been a loss of 27%.

10) KBW (NYSE: KBW): Shares of KBW hit a 52-week low of $18.74 in Wednesday's trading session. The stock closed at $18.75. The year-to-date performance of KBW has been a loss of 33%.

11) Orion Marine (NYSE: ORN): Shares of Orion Marine hit a 52-week low of $8.95 in Wednesday's trading session. The stock closed at $8.99. The year-to-date performance of Orion Marine has been a loss of 23%.

12) Artio Global Investors (NYSE: ART): Shares of Artio Global Investors hit a 52-week low of $11.49 in Wednesday's trading session. The stock closed at $11.57. The year-to-date performance of Artio Global has been a loss of 21%.

13) VimpelCom (NYSE: VIP): Shares of VimpelCom hit a 52-week low of $13.00 in Wednesday's trading session. The stock closed at $13.00. The year-to-date performance of VimpelCom has been a loss of 11%.

14) Companhia Siderurgica Nacional (NYSE: SID): Shares of Companhia Siderurgica Nacional hit a 52-week low of $11.95 in Wednesday's trading session. The stock closed at $11.97. The year-to-date performance of Companhia Siderurgica has been a loss of 25%.

15) Dolan Company (NYSE: DM): Shares of Dolan hit a 52-week low of $8.50 in Wednesday's trading session. The stock closed at $8.50. The year-to-date performance of Dolan has been a loss of 39%.