SECURITIES

Chicago, London Futures Exchanges to Sign Deal: Officials of Europe’s most successful futures exchange are to sign an agreement today with the Chicago Board of Trade to permit trading each others’ most important contracts. The signing will conclude months of planning by the board of trade and the London International Financial Futures and Options Exchange. The deal will extend trading hours. A date for starting the venture will be announced after the deal is signed, board spokeswoman Laura T. LaBarbera said. The trading will use the open-outcry system, in which traders shout out their buy and sell orders.