My guess is because the last four quarters they beat estimates between 19 and 39% and this quarter they missed by 3 cents.. It still looks like a very healthy company to me.
I hope someone can save yahoo, because it seems to be imploding. I used to love yahoo, but now I hate it.
The news feed is awful and now you can't get the basic info on stocks.
I don't think yahoo would release financial details this close to reporting earnings.