In case you are a stock trading geek like me, or if you just want to monitor the stock of some company while working on your linux server, this is a very useful configuration you can put in your .bash_profileThank you Yahoo!.
TICKER="QQQQ"
PS1="\[\033[01;32m\]\`GET 'http://download.finance.yahoo.com/d/quotes.csv?s=$TICKER&f=sl1d1'|cut -f2 -d,\` \u@\h\[\033[01;34m\] \w \$\[\033[00m\] "
export PS1
Happy monitoring!