For tax reasons I need to sell some stock this year, and I decided that I'd whittle down my BRK position, which is 20% of my total portfolio right now, the only single stock. I'll sell BRK once a month until the end of the year, and by then I'll be down to having BRK be about 14% of my portfolio.
My concern with BRK is mostly psychological: The recession showed me that while I can tolerate big price swings and continue to hold, it's not much fun. I didn't like the downswing one bit, and it did cause a few sleepless nights. The higher-than-market volatility of BRK, combined with the single-stock risk make me a bit more wary these days than in the past. And I'm sure volatility will temporarily increase when Warren passes on as all the psychological investors (like me
) get freaked out because people tell them at cocktail parties that they were fools to own BRK when his death was so predictable. I do think in the long term BRK will continue to perform well, but I'm just not sure if the volatility is worth the slight edge over market returns.
As for what to replace it with, for me the money is going into cash, as the recession pointed out to me that my cash position was a bit slim.
Nords, if I were you and looking at selling BRK, I might use the proceeds to pay down the mortgage.