NEW YORK ( TheStreet) -- Gap (NYSE: GPS) is trading at unusually high volume Thursday with 21.5 million shares changing hands. It is currently at four times its average daily volume and trading up $1.67 (+7.2%) at $25.03 as of 3:35 p.m. ET. Gap has a market cap of $9.1 billion and is part of the services sector and retail industry. Shares are up 25.9% year to date as of the close of trading on Wednesday. The Gap, Inc. operates as a specialty retailing company. The company offers apparel, accessories, and personal care products for men, women, children, and babies under the Gap, Old Navy, Banana Republic, Piperlime, and Athleta brand names. The company has a P/E ratio of 15.2, above the average retail industry P/E ratio of 10.8 and below the S&P 500 P/E ratio of 17.7. TheStreet Ratings rates Gap as a buy. The company's strengths can be seen in multiple areas, such as its notable return on equity, attractive valuation levels, solid stock price performance and largely solid financial position with reasonable debt levels by most measures. We feel these strengths outweigh the fact that the company has had sub par growth in net income. You can view the full Gap 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.