It is found that technical analysis is often ineffective for BRK, perhaps because of technical incompetence? From the business structure and distribution point of view, under the condition of no war no plague social stability, Berkshire's various business to create a stable cash flow, equity investment, will be part of the profits as the model can simplify the basically understand several suites stable rent for you, after deducting the basic living costs will be part of the balance again buy good fundamentals or has the growth potential of the company, Part of it is reserved as cash reserve, and the cutter saws the tree. In the long run, it will make steady profits, and the fixed investment will increase the holding. With the appropriate coverd call strategy, it will make slow profits steadily.