Today, a few stocks are down on high volume:

  • Parametric Technology (PMTC) is trading down on a volume of 1.2 million, or 1.5 times its average daily volume. The stock price has decreased 4.8% to $19.95. The stock is down over the last three months, having fallen $7.25 (-26.7%) from $27.20 on April 4, 2012. The stock has moved down across its 50-day moving average of $20.49 today.

  • Generac Holdings (GNRC) is trading down on above-normal volume today, seeing a price drop on a volume of 649,800, or 1.9 times its average daily volume. Shares have dropped 14.2% to $20.64. Shares are down $3.50 (-14.5%) from a price of $24.14 on June 25, 2012. The stock is trading at 81.8% of its 50-day moving average and 80.7% of its 200-day moving average.

  • Amkor Technology (AMKR) is trading down on above-average volume today, seeing a price drop on a volume of 2.3 million, or 2.1 times its average daily volume. Shares are off 2.7% to $4.75. The stock has lost momentum over the last three months, losing $1.13 (-19.2%) from $5.88 on April 4, 2012. The stock has moved down across its 50-day moving average of $4.68 today.

  • Today, Pinnacle Entertainment (PNK) is down on high volume, trading at a volume of 592,597, or 1.8 times its average daily volume. A decrease of 6.8% has brought the stock price to $8.97. Over the last three months, the stock has lost $2.58 (-22.3%) from a price of $11.55 on April 4, 2012. The stock is trading at 92.2% of its 50-day moving average and 86.3% of its 200-day moving average.

  • Today, Eaton Vance Tax Managed Buy Write Opport (ETV) is down on high volume, trading at a volume of 326,734, or 1.7 times its average daily volume. The stock is down 1.4% to $12.26. The stock has fallen over the last three months, dropping 70 cents (-5.4%) from $12.96 on April 4, 2012. The stock has moved down across its 50-day moving average of $12.34 today.

  • Trading at a volume of 574,382, or 2.4 times its average daily volume, Corcept Therapeutics Incorporated (CORT) is down on high volume today. Shares are down 4.9% to $4.27. Shares have shown some positive movement over the last two months as the price has climbed 59 cents (16%) from a price of $3.68 on May 3, 2012. The stock is trading 3.1% above its 50-day moving average and 11.5% above its 200-day moving average.

  • DSP Group (DSPG) is seeing its price fall on above-normal volume today, as 229,857 shares have moved, or four times its average daily volume. The stock price has sunk 2.4% to $6.19.