Toronto index gains 115 points
Mixed geopolitical trade messages clouded a rise in oil prices
TSX drops 67 points; New York markets post modest gains
Dow plunges more than 550 points
TSX tumbles 1.6%
Dow drops nearly 800 points on recession fears
Canadian dollar posts biggest daily gain since Oct. 1
Dow gains 200 points
U.S. markets close lower
Fed chairman suggests possible pause in interest rate hikes