Demand Media /quotes/comstock/13*!dmd (DMD 22.99, +5.99, +35.24%) shares jumped nearly 40% to $23.47 as the company began trading on the New York Stock Exchange.
The Santa Monica, Calif.-based company, which publishes and distributes articles and other materials through a net work of Web sites, offered to sell 8.9 million shares at $17, above its initial range of $14 to $16. Meanwhile, shares of Nielsen Holdings /quotes/comstock/13*!nlsn (NLSN 25.69, +2.69, +11.70%) rose more than 9% to $25.10 as the company began trading on the New York Stock Exchange.
The New York-city based company, which tracks and analyzes consumer behavior, offered to sell 71.4 million shares at $23, above its initial range of $20 to $22.
