Worst Performing Industries For October 21, 2015

The Dow rose 0.28 percent to 17,264.55, while the NASDAQ composite index fell 0.03 percent to 4,879.68. The broader Standard & Poor's 500 index gained 0.07 percent to 2,032.15. The worst performing industries in the market today are:

This industry declined 12.3 percent by 11:00 am with

moving down 16 percent. Pearson's PEG ratio is 3.91.

The industry dropped 4.1 percent by 11:00 am. The worst performer in this industry was

, which declined 2 percent. Bank of America downgraded Micron from Neutral to Underperform.

This industry tumbled 4 percent by 11:00 am. The worst stock within the industry was

, which fell 4.8 percent. Perrigo is expected to release Q3 results on October 22, 2015.

This industry fell 3.6 percent by 11:00 am ET.

shares dropped 3.5 percent in today's trading. J.P. Morgan's Paul Coster maintained an Overweight rating on GoPro, with a price target of $75.