NEW YORK ( TheStreet) -- Cepheid (Nasdaq: CPHD) is trading at unusually high volume Friday with two million shares changing hands. It is currently at four times its average daily volume and trading up $6.71 (+19.5%) at $41.06 as of 10:20 a.m. ET. Cepheid has a market cap of $2.1 billion and is part of the technology sector and electronics industry. Shares are down 0.1% year to date as of the close of trading on Thursday. Cepheid, a molecular diagnostics company, engages in developing, manufacturing, and marketing integrated systems for testing in the clinical market, as well as for application in legacy biothreat, industrial, and partner markets. The company has a P/E ratio of 429.9, above the average electronics industry P/E ratio of 364.2 and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Cepheid as a hold. The company's strengths can be seen in multiple areas, such as its robust 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 we feel that the company's cash flow from its operations has been weak overall. You can view the full Cepheid Ratings Report. See all heavy volume stocks in our stocks moving on unusual volume list or get investment ideas from our investment research center. Interested in other stocks that are rising on unusually high volume? Get free SMS text alerts sent to you when the action happens by texting HVUP to 95370 or select from multiple alert options.