The Globe and Mail reports in its Wednesday, Nov. 19, edition that stocks ended lower on Tuesday, with the S&P 500 putting in a fourth straight session of losses as valuation worries hit big technology-related shares and a disappointing forecast pressured The Home Depot. A Reuters dispatch to The Globe reports that the four-day drop was the U.S. benchmark's longest losing streak in three months. Adding to caution, quarterly results from artificial intelligence and market leader Nvidia, are due after the bell on Wednesday. The U.S. earnings season is near its end, but Nvidia's results will be closely watched by investors worried about market gains tied to artificial intelligence exuberance. Nvidia's shares were 2.8 per cent lower on the day. Shares of Home Depot dropped 6 per cent after the home improvement chain gave a forecast for full-year profit that disappointed and missed quarterly earnings estimates. Home Depot aside, earnings for this reporting period have been much stronger than expected. Year-over-year earnings growth for the S&P 500 is now at 16.9 per cent, well above the 8.8 per cent estimated at the start of October. Indexes pared losses by midday before falling again.