NEW YORK ( TheStreet) -- Crown Castle International (NYSE: CCI) is trading at unusually high volume Thursday with 6.2 million shares changing hands. It is currently at four times its average daily volume and trading up $1.31 (+2.5%) at $53.90 as of 1:30 p.m. ET. Crown Castle International has a market cap of $13.07 billion and is part of the technology sector and telecommunications industry. Shares are up 17.4% year to date as of the close of trading on Wednesday. Crown Castle International Corp., together with is subsidiaries, owns, operates, and leases shared wireless infrastructure primarily in the United States, Puerto Rico, and Australia. The company has a P/E ratio of 100.8, above the average telecommunications industry P/E ratio of 95.7 and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Crown Castle International as a hold. The company's strengths can be seen in multiple areas, such as its impressive record of earnings per share growth, revenue growth and expanding profit margins. However, as a counter to these strengths, we also find weaknesses including premium valuation, weak operating cash flow and generally poor debt management. You can view the full Crown Castle International 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.