Under pressure from outside investors, including corporate raider Carl Icahn, USX Corporation, the parent corporation for U.S. Steel and Marathon Oil, announced a plan to split its stock into separate steel and energy issues. The market response to this action was immediately positive, with the stock price of USX increasing $2.37 to close at $31.25 on the day of the announcement. Why do you think this action by USX was so well received by the stock market?