berkshire also owned an assortment of smaller businesss generation about $3 billion in revenues. Exhibit 2 gives a summary of revennus, operating profit ,capital expenditures,depreciation , and assets for berkshire's various business segment. the company's invesment portfolio also included equity interests in numerous publicly traded companies, which are summarized in Exhibit 3. in addition, the company owned about $21.4 billion of foreign exchange conttracts at year end, spread among 12 currencies. prior to march 2002, neither buffett nor berkshire had ever traded in currencies, but buffett had developed serious cooncerns about the united states large current account deficits, and he hoped that that his currency bets would offset the growing pressure on the dollar.