Google's share price was buffeted last week by mistakes of carelessness and inattention by a vendor--someone pressing "Send" when they weren't authorized to do so and without reading what they were sending---and by disappointment in 3Q 2012 financial results. The basic comment was that Google's take from a mobile ad was lower than that from a desktop ad because of lower rates; the stock swooned. It was probably talked down so that buyers could find a better entry point.
From what I've read about Google, including from Jarvis' book, I would guess that none of Google's founders or senior executives would be the least bit concerned by Wall Street's quarterly hand wringing.
In fact, here is an excerpt from the recent Wall Street Journal online edition,