why do some pe ratios vary so much on different sites?

[fearme]

im looking up UBB
on clearstation.etrade.com 17.45
yahoo finance 212.91 ???
google finance 45.77
smith barney NA
scottrade 22.8

[DcifrThs]

[ QUOTE ]
im looking up UBB
on clearstation.etrade.com 17.45
yahoo finance 212.91 ???
google finance 45.77
smith barney NA
scottrade 22.8

[/ QUOTE ]

well they probably have the price right so it must be their "earnings" estimates.

you'd have to dig into that.

Barron