DivX recently had their IPO, and they saw its stock start at $16 and balloon to $18.70 by the close of the first day.

The company sold 9.1 million shares for $16 a share, so the closing price represents a 16.9 percent increase. Until recently, DivX said it would offer its shares for between $12 and $14 a share. From $12 a share, the closing price on Friday represents an increase of over 50 percent.

The DivX video compression technology offers DVD quality at 10 times the compression of traditional MPEG-2 files, enabling a full-length film to fit on one CD or eight films to fit on one DVD. More than 50 million DivX-certified devices have been released.

I have a DivX DVD player from Phillips. I love how DivX is slowly expanding into consumer products. Not surprising how their IPO went. I wish I had bought some shares at $16 and sold them for almost $19 a share.