The U.S. Dollar Index ( DX ) is up 0.28%, or $0.03, to $10.66. Market Vectors Gold Miners (GDX) is up 0.42% to $59.28. Stocks are trading in a narrow range around the even mark, as China moves to tighten its money supply to cool the economy and control inflation and new concerns surface over efforts to quell the Irish debt crisis, which are off-setting supportive earnings and M&A speculation.