"The canaries in the market coal mine are gasping for air," says CNBC's Melissa Lee, as mild...

|By:, SA News Editor

"The canaries in the market coal mine are gasping for air," says CNBC's Melissa Lee, as mild declines in the Dow (DIA -0.5%) and Nasdaq (QQQ -0.2%) belie sharp drops in small caps (IWM -1.8%) and mid caps (MDY -1.1%). The S&P 500 has widened its lead over the Russell 2000 to about 200 basis points YTD.