NEW YORK ( TheStreet) -- JDS Uniphase Corp (CA (Nasdaq: JDSU) is trading at unusually high volume Thursday with 21.4 million shares changing hands. It is currently at 4.1 times its average daily volume and trading down 92 cents (-7%) at $12.20 as of 3:50 p.m. ET. JDS Uniphase Corp (CA has a market cap of $3.11 billion and is part of the technology sector and telecommunications industry. Shares are up 25.8% year to date as of the close of trading on Wednesday. JDS Uniphase Corporation provides communications test and measurement solutions, and optical products for telecommunications service providers, wireless operators, cable operators, network-equipment manufacturers, and enterprises worldwide. The company has a P/E ratio of 45.3, below the average telecommunications industry P/E ratio of 50.3 and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates JDS Uniphase Corp (CA 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 expanding profit margins. However, as a counter to these strengths, we also find weaknesses including unimpressive growth in net income, weak operating cash flow and a generally disappointing performance in the stock itself. You can view the full JDS Uniphase Corp (CA 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 falling on unusually high volume? Get free SMS text alerts sent to you when the action happens by texting HVDOWN to 95370 or select from multiple alert options.