NEW YORK ( TheStreet) -- Shares of Insituform Technologies (Nasdaq: INSU) were gapping down Thursday morning with an open price 11.2% lower than Wednesday's closing price. The stock closed at $13.22 Wednesday and opened today's trading at $11.74. The average volume for Insituform has been 477,300 shares per day over the past 30 days. Insituform has a market cap of $526.9 million and is part of the industrial goods sector and materials & construction industry. Shares are down 50.1% year to date as of the close of trading on Wednesday. Insituform Technologies, Inc., through its subsidiaries, provides proprietary technologies and services for rehabilitating sewer, water, energy, and mining piping systems and the corrosion protection of industrial pipelines in North America and internationally. The company has a P/E ratio of 11.2, equal to the average materials & construction industry P/E ratio and below the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Insituform as a hold. The company's strengths can be seen in multiple areas, such as its largely solid financial position with reasonable debt levels by most measures and good cash flow from operations. However, as a counter to these strengths, we also find weaknesses including unimpressive growth in net income, disappointing return on equity and poor profit margins. You can view the full Insituform 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.