NEW YORK ( TheStreet) -- Shares of Amyris (Nasdaq: AMRS) were gapping down Friday morning with an open price 14.7% lower than Thursday's closing price. The stock closed at $9.73 Thursday and opened today's trading at $8.30. The average volume for Amyris has been 222,800 shares per day over the past 30 days. Amyris has a market cap of $462.4 million and is part of the health care sector and drugs industry. Shares are down 15.6% year to date as of the close of trading on Thursday. Amyris, Inc., an integrated renewable products company, offers renewable compounds for a variety of markets. The company has a P/E ratio of 1.1, below the average drugs industry P/E ratio of 1.2 and below the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Amyris as a sell. The company's weaknesses can be seen in multiple areas, such as its feeble growth in its earnings per share, deteriorating net income, poor profit margins, weak operating cash flow and generally disappointing historical performance in the stock itself. You can view the full Amyris Ratings Report. Get more investment ideas from our investment research center. Interested in other stocks that are gapping down? Get free SMS text alerts sent to you when the action happens by texting DOWN to 95370 or select from multiple alert options.