Today, these stocks are up on high volume:

  • Today, Medco Health Solutions (MHS) is up on high volume, trading at a volume of 20 million, or 4.5 times its average daily volume. Shares have risen 3.7% to $71.52. Over the last three months, the stock has gained $16.09 (29%) from a price of $55.43 on December 29, 2011. The stock is trading 7.3% above its 50-day moving average and 17.2% above its 200-day moving average.

  • Express Scripts (ESRX) is seeing its price rise on above-normal volume today, as 23.4 million shares, 3.4 times the stock's average daily volume, have moved. Shares are up 1.8% to $54.18. Shares have been on on the rise over the past three months, climbing 40 cents (0.7%) from a price of $53.78 on February 28, 2012. The stock is trading 2.5% above its 50-day moving average and 11% above its 200-day moving average.

  • Tyco International (TYC) is up on high volume today, trading with volume of 8.1 million, or 3.9 times its average daily volume. At $55.41, the stock price has risen 3.5%. Share price is up $3.41 (6.6%) from $52 on February 28, 2012. The stock is trading 6.8% above its 50-day moving average and 13.8% above its 200-day moving average.

  • Pentair (PNR) is experiencing a price increase on above-average volume today. 5.2 million shares have moved, which is 12.5 times the stock's standard daily volume. Share price has risen to $45.77, a 13.7% increase. The stock is trading 17.8% above its 50-day moving average and 20% above its 200-day moving average.

  • Glu Mobile (GLUU) is seeing its price rise on above-normal volume today, as 7.2 million shares, 2.1 times the stock's average daily volume, have moved. The stock price has increased to $4.85, a 8.5% increase. The stock is trading 20.5% above its 50-day moving average and 28% above its 200-day moving average.

  • Trading with a volume of 1.9 million, or 1.9 times its average daily volume, Alkermes (ALKS) is up on high volume today. Shares have climbed 4.5% to $17.75. Shares are up, having risen $1.56 (9.6%) from a price of $16.19 on March 21, 2012. The stock has moved up across its 50-day moving average of $17.42 today.

  • PartnerRe (PRE) is up on high volume today, trading with volume of 419,943, or 1.5 times its average daily volume. At $67.74, the stock price is up 1.8%. Share price is up, having risen $3.84 (6%) from $63.90 on February 28, 2012. The stock is trading 3.6% above its 50-day moving average and 6.7% above its 200-day moving average.

  • Huntington Ingalls Industries (HII) is seeing its price rise on above-normal volume today, as 493,891 shares, 2.8 times the stock's average daily volume, have moved. At $40.99, the stock price has climbed 8.2%. Share price rose over the last three months, now up $9.05 (28.3%) from $31.94 on December 29, 2011. The stock is trading 10.8% above its 50-day moving average and 19.7% above its 200-day moving average.

  • Today, Chelsea Therapeutics International (CHTP) is up on high volume, trading at a volume of 4.3 million, or 2.5 times its average daily volume. Shares are up 1.3% to $3.85. The stock has fallen over the last three months, dropping $1.29 (-25.1%) from $5.14 on December 29, 2011. The stock has moved down across its 50-day moving average of $3.66 today.