ByronM - 6:42 pm on Apr 15, 2011 (gmt 0)

If you read into the detail, it's the costs that are rising spectacularly. This is the thing that is making investors look again, especially when the results aren't mega spectacular. If that was the avarage private business the owners would be delighted with the growth, but don't have 'fat and hungy' investors to answer to. The investors want mega spectacular, or the shares lose their shine.

This is true.. I also think they're generally overvalued period. Which beyond investor reaction to costs was an invevitable fluctuation as well.