Google (or now, Alphabet) is an less diversified Berkshire Hathaway with tons of R&D expenditures. I think it's likely that tax benefits from the reorg are the

Google (or now, Alphabet) is an less diversified Berkshire Hathaway with tons of R&D expenditures. I think it's likely that tax benefits from the reorg are the biggest reason for the stock price increases. But it also appears likely that there will be an offering of Alphabet stock in some form so it's curious to see how the value will break out.