NEW YORK ( TheStreet) -- Shares of PDF Solutions (Nasdaq: PDFS) were gapping down Friday morning with an open price 11.5% lower than Thursday's closing price. The stock closed at $6.84 Thursday and opened today's trading at $6.05. The average volume for PDF has been 161,800 shares per day over the past 30 days. PDF has a market cap of $188.5 million and is part of the technology sector and computer software & services industry. Shares are up 41.9% year to date as of the close of trading on Thursday. PDF Solutions, Inc. provides infrastructure technologies and services for the design and manufacture of integrated circuits(IC) in Asia, the United States, and Europe. The company has a P/E ratio of 673, equal to the average computer software & services industry P/E ratio and above the S&P 500 P/E ratio of 17. TheStreet Ratings rates PDF as a hold. The company's strengths can be seen in multiple areas, such as its revenue growth, largely solid financial position with reasonable debt levels by most measures and impressive record of earnings per share growth. However, as a counter to these strengths, we find that the company's return on equity has been disappointing. You can view the full PDF 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.