Worst Performing Industries For April 30, 2015

The Dow dropped 0.34 percent to 17,973.71, while the NASDAQ composite index slipped 0.81 percent to 4,983.04. The broader Standard & Poor's 500 index declined 0.44 percent to 2,097.67. The worst performing industries in the market today are:

The industry dropped 3.9 percent by 12:15 pm. The worst performer in this industry was

, which declined 3.8 percent.

This industry declined 3.1 percent by 12:15 pm with

moving down 4.5 percent. Silver futures fell 4.30 percent to trade at $16.00 an ounce

This industry tumbled 2.5 percent by 12:15 pm. The worst stock within the industry was

, which fell 4.8 percent. CPFL Energia shares have dropped 16.46 percent over the past 52 weeks, while the S&P 500 index has gained 11.85 percent in the same period.

This industry fell 2.2 percent by 12:15 pm ET.

shares dropped 10.8 percent in today's trading. Ocera Therapeutics reported a Q1 loss of $6.7 million, or $0.34 per share. .