Berkshire's Private Firms Outpace Public Holdings, Fueling Growth Beyond Apple and BofA

Berkshire Hathaway is outperforming the S&P 500, but its biggest stock holdings like Apple and Bank of America are underperforming
Berkshire's privately held companies, not its public stocks, generate most of its cash flow
Investors can't invest in Berkshire's private companies, but can invest in similar alternatives like private equity firms and business development companies
Blackstone and Prospect Capital are examples of investable private capital firms
The private capital market is growing rapidly and may be a better option than overvalued public stocks