These nine stocks hit 52-week highs:

  • While trading on above-average volume, Medco Health Solutions (NYSE:MHS) climbed today, reaching and then surpassing its previous 52-week high of $70.97. Shares are trading at a volume of 20 million at a price spike of 3.7%. Share price is up, having risen $3.88 (5.7%) from $67.64 on February 28, 2012. The stock is trading 7.3% above its 50-day moving average and 17.2% above its 200-day moving average.

  • The share price of Tyco International (NYSE:TYC) climbed today, reaching and then surpassing its previous 52-week high of $53.75. The stock was trading on above-average volume. The stock price has gained 3.5% with 8.1 million shares moving. The stock has risen $8.48 (18.1%) over the last three months from a price of $46.93 on December 29, 2011. The stock is trading 6.8% above its 50-day moving average and 13.8% above its 200-day moving average.

  • While trading on above-average volume, Pentair (NYSE:PNR) climbed today, reaching and then surpassing its previous 52-week high of $42.43. While trading at a volume of 5.2 million, the stock price has risen 13.7%. The stock is trading 17.8% above its 50-day moving average and 20% above its 200-day moving average.

  • The share price of Markel Corporation (NYSE:MKL) increased today, reaching and then surpassing its previous 52-week high of $430.26. The stock was trading on above-average volume. The stock price is up 4.1% with a volume of 38,893 shares. Over the last two months, shares have shown some positive movement as the price has climbed $42.23 (10.6%) from a price of $399.50 on January 30, 2012. The stock is trading 6.6% above its 50-day moving average and 9.4% above its 200-day moving average.

  • While trading on below-average volume, Dynavax Technologies Corporation (NASDAQ:DVAX) rose today, reaching and then surpassing its previous 52-week high of $4.79. It peaked at $4.89. The stock price has risen 2.5% on a volume of 1.5 million shares. The stock is trading 12.9% above its 50-day moving average and 30% above its 200-day moving average.

  • While trading on above-average volume, Adams Resources & Energy (AMEX:AE) climbed today, reaching and then surpassing its previous 52-week high of $70.73. Shares have risen 4.7%, trading at a volume of 59,523 shares.

  • The share price of Hitachi Ltd. (NYSE:HIT) went up today, reaching and then surpassing its previous 52-week high of $63.51. In spite of its performance and peak price of $64.78, the stock was trading on below-average volume. Shares are trading at a volume of 60,502 at a price rise of 1.8%. Shares have been on on the rise over the past three months, climbing $4.63 (7.8%) from a price of $59.70 on February 28, 2012. The stock is trading 10.2% above its 50-day moving average and 14.2% above its 200-day moving average.

  • While trading on below-average volume, EXACT Sciences Corporation (NASDAQ:EXAS) improved today, reaching and then surpassing its previous 52-week high of $10.28. It peaked at $10.51. The stock is up 1.9% with 358,986 shares changing hands.

  • The share price of TELUS Corporation (NYSE:TU) rose today, reaching and then surpassing its previous 52-week high of $58.20. In spite of its performance and peak price of $58.78, the stock was trading on below-average volume. On volume of 57,434 shares, the stock has risen 1.2%. Over the last three months, the stock has gained $5.08 (9.6%) from a price of $53.16 on December 29, 2011. The stock is trading 3.4% above its 50-day moving average and 9.1% above its 200-day moving average.