NEW YORK (TheStreet) - The metals and mining sector experienced an advance-to-decliners ratio of six to 73, despite positive trends in commodity prices and strong quarterly results. With investors becoming wary of deepening U.S. debt crisis, market sentiment was subdued the past week. Aluminum Corporation of China (ACH) and Gold Fields (GFI) were among the six gainers over the week.Meanwhile, the S&P 500 Metals and Mining Index slumped 5.9%. Despite strong quarterly earnings recorded and favorable commodity prices past week, stocks like Patriot Coal ( PCX) and Harsco ( HSC - Get Report) slumped 24% and 13.6% respectively. Among others, coal producers like Westmoreland Coal ( WLB) and James River Coal ( JRCC) shed 12.7% and 12.5%, respectively. Below, the stocks are stacked in the order of losers to gainers. >> Keep the stock market at your fingertips with TheStreet's iPad app.