A few stocks are up on high volume today:

  • Cognizant Technology (CTSH) is up on high volume today, trading with volume of 8.6 million, or 1.5 times its average daily volume. The stock price has increased to $58.59, a 4.1% increase. The stock has been losing steam over the last month, dipping $17.32 (-22.8%) from a price of $75.91 on April 9, 2012. The stock is trading at 79.9% of its 50-day moving average and 83% of its 200-day moving average.

  • Trading with a volume of 32.7 million, or 2.4 times its average daily volume, Arena Pharmaceuticals (ARNA) is up on high volume today. The stock price is $3.15, a 15.8% increase. The stock is trading 25.5% above its 50-day moving average and 37.2% above its 200-day moving average.

  • Today, Vitamin Shoppe (VSI) is up on high volume, trading at a volume of 1.9 million, or four times its average daily volume. At $50.80, the stock price has risen 13.5%. The stock has been on an upward trajectory over the last two months, climbing $7.48 (17.3%) from a price of $43.32 on March 9, 2012. The stock has moved up across its 50-day moving average of $45.32 today.

  • NV Energy (NVE) is seeing its price rise on above-normal volume today, as 5.4 million shares, 2.9 times the stock's average daily volume, have moved. The stock price has climbed to $16.98, a 4.2% increase. Over the last two months, shares have shown some positive movement as the price has climbed $1.18 (7.5%) from a price of $15.80 on March 9, 2012. The stock is trading 5.7% above its 50-day moving average and 7.2% above its 200-day moving average.

  • Today, Henry Schein (HSIC) is up on high volume, trading at a volume of 847,474, or 1.8 times its average daily volume. At $76.90, the stock price is up 2.9%. Over the last three months, the stock has gained $5.63 (7.9%) from a price of $71.27 on February 9, 2012. The stock has moved up across its 50-day moving average of $75.34 today.

  • Invesco Mortgage Capital (IVR) is up on high volume today, trading with volume of 2.2 million, or 2.1 times its average daily volume. The stock price is $18.16, a 4.4% increase. The stock has risen $2.36 (14.9%) over the last three months from a price of $15.80 on February 9, 2012. The stock has moved up across its 50-day moving average of $17.47 today.

  • CommVault Systems (CVLT) is experiencing a price increase on above-average volume today. 756,301 shares have moved, which is 1.8 times the stock's standard daily volume. At $51.54, the stock price has climbed 1.6%. Over the last three months, the stock has lost $2.79 (-5.1%) from a price of $54.33 on February 9, 2012. The stock is trading 6% above its 200-day moving average.

  • Trading with a volume of 1.8 million, or 5.7 times its average daily volume, Grand Canyon Education (LOPE) is up on high volume today. Shares have climbed 11.4% to $17.86. Shares have been on an upward trajectory over the past month, rising $1.24 (7.5%) from a price of $16.62 on April 9, 2012. The stock has moved up across its 50-day moving average of $16.99 today.

  • Diamond Foods (DMND) is seeing its price rise on above-normal volume today, as 961,465 shares, 1.8 times the stock's average daily volume, have moved. The stock price has increased to $23.22, a 4.3% increase. Shares are up, having risen $2.64 (12.8%) from a price of $20.58 on May 1, 2012. The stock has moved down across its 50-day moving average of $22.08 today.