Quote from tomcole:
Since hes a US-dollar based balance sheet, he cant argue hes hedging his dollar value, as hes dollar-based.
Why not? He's holding a great deal of cash. It would be stupid not to diversify those cash holdings, especially if you feel that the currency you are holding is vulnerable. That is hardly a speculative position; it is basic investment risk management. And that is exactly the rationale that Buffet has publicly stated for his short position on the dollar.
The fact that Berkshire's financial statements are reported in dollars has no impact on the prudence of cash diversification. If the dollar falls, the real value of Berkshire's cash reserves to Berkshire investors in terms of their trade-weighted buying power falls as well, even if the balance sheet bottom line is unchanged.
Martin