The Globe and Mail reports in its Friday edition that the S&P/TSX Composite Index has climbed 1,445 points in the past three months, up until Wednesday's close. The Globe's Scott Barlow writes that in a market cap-weighted benchmark like the TSX, small moves in bigger companies can have much bigger effects than big percentage changes in smaller companies. The biggest positive influence on the index came from Canadian Pacific Kansas City. Its 15.1-per-cent appreciation boosted the benchmark by 116 points. Canadian Natural Resources's 15.6-per-cent rise added 115 points and Suncor Energy's 15.6-per-cent return pushed the benchmark higher by 65 points. For technology, Constellation Software climbed 16.7 per cent and added 80 points. Shopify rose 8.5 per cent and contributed 75 points. The biggest five detractors from index returns include three precious metals stocks. Barrick Gold shaved 30 points from benchmark returns, Wheaton Precious Metals subtracted 13 points and SSR Mining's 62-per-cent loss reduced index returns by 13 points. TD Bank eased lower by 4.3 per cent but its large market cap resulted in a 15-point reduction in benchmark returns. Similarly, BCE's 9.9-per-cent loss took 25 points from the index.