Earlier this year Berkshire sold all of its holdings in INTC. This happened shortly after Paul met with the directors of Berkshire. Could it be during their discussions on INTC that Paul let it slip that he was thinking about retiring? Thus creating doubt for Berkshire and they decided to dump their holding and wait for the shares to go lower. They most likely thought they would get a two for one. They would get the resulting price drop when it became known that they divested their holding in INTC. Then they would get an additional price drop when Paul announced his resignation. Could it be those big after hour trades on Wed and Fri (33mm and 25mm) were Berkshire buying back in or was it short covering or was it some big fund buying in ahead of the run up?