Groupon Inc., an online deals company, generated a huge amount of publicity with its IPO. Its first day of trading was Nov. 4, 2011.
Pricing: $20 per share
First-day close: $26.11, up 31 percent from IPO price
Monday's close: $19.63, down 2 percent from IPO price.
Trading range since IPO: $14.85 to $31.14