NEW YORK ( TheStreet) -- Shares of Stamps.com (Nasdaq: STMP) were gapping up Friday morning with an open price 13.5% higher than Thursday's closing price. The stock closed at $12.76 Thursday and opened today's trading at $14.48. The average volume for Stamps.com has been 49,400 shares per day over the past 30 days. Stamps.com has a market cap of $178.5 million and is part of the services sector and retail industry. Stamps.com Inc. provides Internet-based postage solutions. The company has a P/E ratio of 23.5, above the average retail industry P/E ratio of 23 and equal to the S&P 500 P/E ratio of 23.5. TheStreet Ratings rates Stamps.com as a buy. The company's strengths can be seen in multiple areas, such as its compelling growth in net income, revenue growth, largely solid financial position with reasonable debt levels by most measures, solid stock price performance and reasonable valuation levels. Although no company is perfect, currently we do not see any significant weaknesses which are likely to detract from the generally positive outlook. You can view the full Stamps.com Ratings Report.