A look at how some IPO stocks fared this year

Online deals pioneer Groupon Inc. saw its stock jump by nearly a third Friday on its first day of trading. Such first-day pops are common, especially when companies offer a small percentage of their stock, driving up demand. Chicago-based Groupon was selling 5.5 percent of its shares. Based on Friday’s closing stock price of $26.11, Groupon is valued at $16.58 billion.

Below is a look at how the stocks of some recently public companies are faring. The companies are all loosely Internet-related, though their businesses vary widely.

? Zillow Inc., real estate website, IPO on July 20

Pricing: $20

First-day close: $35.77, up 79 percent.

Friday’s close: $32.63, up 63 percent

Trading range since IPO: $23.43 to $60

? Pandora Media Inc., Internet radio company, IPO on June 15

Pricing: $16

First-day close: $17.42, up 9 percent

Friday’s close: $15.22, down 5 percent

Trading range since IPO: $9.33 to $26

? LinkedIn Corp., online professional network, IPO on May 19

Pricing: $45

First-day close: $94.25, more than double

Friday’s close: $82.37, up 83 percent

Trading range since IPO: $60.14 to $122.70

? Zipcar Inc., online car rental company, IPO on April 14

Pricing: $18

First-day close: $28, up 56 percent

Friday’s close: $17.86, down 1 percent

Trading range since IPO: $16.50 to $31.50

? Demand Media Inc., online content publisher, IPO on Jan. 26

Pricing: $17

First-day close: $22.65, up 33 percent

Friday’s close: $7.76, down 54 percent

Trading range since IPO: $5.24 to $27.38