The Globe and Mail reports in its Tuesday edition that Canada's main stock index fell on Monday, pulled down by a strong U.S. dollar and lower commodity prices that weighed on the commodity-heavy index. A Reuters dispatch to The Globe says the Dow also ended lower, but the S&P 500 Index and Nasdaq rose to new record highs thanks mostly to tech-related shares. The S&P/TSX Composite Index closed down 57.67 points at 25,590.33. The materials and energy companies, which together account for more than a quarter of the weight of the composite index, fell as a strong dollar made prices of these commodities more expensive in local currency. Canada's materials sector fell 0.91 per cent owing to lower gold and copper prices, while the energy index was down 0.77 per cent. The health care sector was the biggest loser of the day in Toronto with a drop of 4.37 per cent, weighed down by Bausch Health, which fell more than 7 per cent. Toronto has had a stellar year so far with overall returns of more than 22 per cent, and it currently hovers around record-high levels, led by heavyweight financials, materials and mining. In New York, Tesla shares advanced 3.5 per cent, with Stifel raising its price target on the stock.