Worst Performing Industries For December 23, 2014

The Dow climbed 0.48% to 18,045.88, while the NASDAQ composite index fell 0.11% to 4,776.23. The broader Standard & Poor's 500 index gained 0.26% to 2,083.96. The worst performing industries in the market today are:

The industry dropped 3.29% by 11:20 am. The worst performer in this industry was

, which declined 3.5%. Perrigo's trailing-twelve-month profit margin is 4.66%.

This industry fell 2.62% by 11:20 am ET.

shares dropped 7.7% in today's trading. Isis Pharmaceuticals' PEG ratio is -4.49.

This industry tumbled 1.92% by 11:20 am. The worst stock within the industry was

, which fell 15.9%. Baird downgraded Achillion Pharmaceuticals from Outperform to Neutral and raised the price target from $12.00 to $16.00.

This industry declined 1.62% by 11:20 am with

moving down 5%. Accelerate Diagnostics shares have jumped 40.42% over the past 52 weeks, while the S&P 500 index has gained 13.38% in the same period.