bio-pharm company medivation more than doubled as volume jumped almost 40-fold. it reported positive results with its prostate cancer drug. finally, cattle futures set a record high. the possibility of the end of import restrictions in japan have fueled the rally. and that's tonight's "market focus." >> susie: another company getting attention after the bell today, a-m-d. advanced micro devices announced big job cuts-- 12% of its workforce, or about 1,400 jobs, before the spring. the reason-- a tough economy and heavy competition from tablet computers and smart phones have led to a big decline in p.c. sales. the layoffs are expected to save $200 million next year. >> tom: investor exhaustion-- for weeks, the major stock indices have made it a common practice to move more than 1% a day. swings of a couple hundred points for the dow industrial average hasn't made investors panic; it's made them exhaust. that's the assessment from tonight's "street critique" guest. he's michael farr, president of investment firm farr, miller and washington, and author of "the arroga