Subject: Re: BRK experts in denial
You don't need to make complicated IV calculations. Just watch the actions of Berkshire itself as the price increases.
Buffett stopped all buybacks around the $470 per B mark. Ajit jain slashed his personal holdings of Berkshire by 55% around this level.
That was a pretty good indication that the price was approaching IV as the price hit that range. It is 14% higher as of today.
To me it seemed to be as good a=time as any to rebalance the portfolio and bring down some single stock exposure without any tax consequences - so I sold some in the $530 range. Obviously that is not everyone's situation butto me it was a fairly rational choice.