$Berkshire Hathaway-B (BRK.B.US)$ Buying Lao Ba's stock is l...

$Berkshire Hathaway-B(BRK.B.US)$ Buying Lao Ba's stock is like buying an ETF, adding three or two stocks with advantages and strength to form a complementary combination. They are patient and confident, and don't give up easily if they don't get to the target price.