Key TakeawaysThe Bank of Montreal's third-quarter earnings fell short of analysts' estimates as profits declined across several segments, including personal and commercial banking in the U.S. and Canada.Overall, profits increased year-over-year despite lower revenue, as CEO Darryl White said the bank practiced "good cost discipline."The bank's shares moved lower in early trading Tuesday after the earnings report was released. Canada's Bank of Montreal (BMO) missed estimates for its third-quarter results Tue ...