NEW YORK ( TheStreet) -- Shares of Emcore Corporation (Nasdaq: EMKR) were gapping down Wednesday morning with an open price 12.6% lower than Tuesday's closing price. The stock closed at $3.09 Tuesday and opened today's trading at $2.70. The average volume for Emcore has been 2.1 million shares per day over the past 30 days. Emcore has a market cap of $267.2 million and is part of the technology sector and electronics industry. Shares are up 184.8% year to date as of the close of trading on Tuesday. EMCORE Corporation provides compound semiconductor-based components and subsystems for the fiber optics and solar power markets. The company operates in two segments, Fiber Optics and Photovoltaics. TheStreet Ratings rates Emcore as sell. Among the areas we feel are negative, one of the most important has been poor profit margins. You can view the full Emcore Ratings Report. Get more investment ideas from our investment research center.