His biggest returns for the first 3/4 of his adult life involved him going against the market when equities were out of favor and scooping up extremely large positions in the likes of The Washington Post, GEICO, American Express, Wells Fargo and Coca Cola.
His extraordinary history of stock picking is what enabled him to begin buying entire substantial businesses in the first place. The stock picking is what accumulated the capital necessary to buy Blue Chip Stamps and See's Candies. The Buffett partnerships for example were not built around buying up entire businesses and operating them for decades to reinvest the cash flow, and yet his returns were dramatic - regularly stomping the Dow - during those years precisely because he was such a great stock picker.
The advantage he had in the GS preferred stock offering in 2008 was his ability to provide liquidity and his name - if GS told people that Warren was investing in them then it was a real vote of confidence.
When full ownership is taken (his preferred option), the original management is almost always left in place. No rules or guidance are given. The subsidiaries work however they worked before acquisition.
That said, after reading through his 50 Berkshire Hathaway letters, the main lesson I drew was: own insurance companies which underwrite for profit under all economic conditions.
The Bank of America deal shows how good a deal you can get when you can put $5B where your mouth is
> In exchange, Berkshire Hathaway received $5 billion worth of preferred stock yielding 6% a year plus warrants to purchase 700 million shares of Bank of America common stock at an exercise price of $7.14 per share.
apologies in advance for linking to fool.com http://www.fool.com/investing/general/2015/08/19/how-much-is...
It helped that they were structurally inclined to build up cash. As Buffet explains, a booming share market is bad for him: everything is too expensive to buy.
So cash piles up, waiting for good deals of sufficient magnitude to arise.
When a bust arrives, there are bargains everywhere and a lot of money to buy into them.
Buffett gets to do deals (on better terms no less) that others can't as a result of his celebrity and this has been the case for a long long time.
[1] In the same way Trump has but with a much better track record.
The bet was simple. Buffett would invest in a Vanguard S&P 500 index fund, and the hedge fund could do anything they wanted.
http://fortune.com/2016/05/11/warren-buffett-hedge-fund-bet/
http://www.npr.org/2016/03/10/469897691/armed-with-an-index-...