NEW YORK ( TheStreet) -- AdtranInc (Nasdaq: ADTN) is trading at unusually high volume Thursday with 3.9 million shares changing hands. It is currently at 4.1 times its average daily volume and trading up $1.13 (+3.6%) at $32.30 as of 4 p.m. ET. AdtranInc has a market cap of $2.24 billion and is part of the technology sector and telecommunications industry. Shares are up 3.3% year to date as of the close of trading on Wednesday. ADTRAN, Inc. designs, manufactures, markets, and services network access solutions that enable voice, data, video, and Internet communications across wireline and wireless networks worldwide. The company has a P/E ratio of 14.7, below the average telecommunications industry P/E ratio of 16.6 and below the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates AdtranInc as a buy. 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, notable return on equity, good cash flow from operations and expanding profit margins. We feel these strengths outweigh the fact that the company has had sub par growth in net income. You can view the full AdtranInc 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.