NEW YORK ( TheStreet) -- Perfect World (Nasdaq: PWRD) is trading at unusually high volume Monday with 4.1 million shares changing hands. It is currently at 4.4 times its average daily volume and trading up 37 cents (+2.3%) at $16.38 as of 1:55 p.m. ET. Perfect World has a market cap of $487.1 million and is part of the technology sector and computer software & services industry. Shares are up 52.9% year to date as of the close of trading on Friday. Perfect World Co., Ltd., through its subsidiaries, operates as an online game developer and operator in China, the United States, Japan, and southeast Asia. The company develops online games based on its proprietary game engines and development platforms. The company has a P/E ratio of 20.6, above the average computer software & services industry P/E ratio of five and above the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Perfect World 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 attractive valuation levels. However, as a counter to these strengths, we also find weaknesses including deteriorating net income, a generally disappointing performance in the stock itself and feeble growth in the company's earnings per share. You can view the full Perfect World 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.