Quest (QRM) (BONE) (PDC) (XG) (GST) (QPSA) Top AMEX Losers

Quest Rare Minerals (QRM), Bacterin International Holdings Inc. (BONE), Pioneer Drilling Company (PDC), Extorre Gold Mines (XG), Gastar Exploration (GST) and Quepasa Corp. (QPSA) were the top losers on the AMEX on Monday, November 21.

Quest Rare Minerals (QRM) ended Monday down 13.33 percent, closing at $2.47. They traded in a range of $2.42 to $2.74. A total of 574,400 shares changed hands.

Bacterin International Holdings Inc. (BONE) ended Monday down 10.07 percent, closing at $2.59. They traded in a range of $2.40 to $2.86. A total of 263,307 shares changed hands.

Pioneer Drilling Company (PDC) ended Monday down 9.67 percent, closing at $10.00. They traded in a range of $9.78 to $10.76. A total of 1,060,115 shares changed hands.

Extorre Gold Mines (XG) ended Monday down 9.50 percent, closing at $7.72. They traded in a range of $7.57 to $8.32. A total of 321,828 shares changed hands.

Gastar Exploration (GST) ended Monday down 9.06 percent, closing at $3.11. They traded in a range of $3.08 of $3.34. A total of 732,825 shares changed hands.

Quepasa Corp. (QPSA) ended Monday down 8.74 percent, closing at $3.55. They traded in a range of $3.48 to $3.89. A total of 255,009 shares changed hands.