10:32 AM EST - Canadian Imperial Bank of Commerce : posted an increase in third-quarter earnings on Thursday despite a $290 million write-down tied to the U.S. residential mortgage market. Canada's fifth biggest bank said it earned $835 million, or $2.31 a diluted share, in the three months ended July 31, helped by higher profits in its retail banking business. That compared with a profit of $662 million, or $1.86 a share, a year earlier. Canadian Imperial Bank of Commerce
shares T.CM are trading up $1.33 at $95.30.
