The Globe and Mail reports in its Thursday edition that the S&P 500 ended higher on Wednesday, lifted by gains in Nvidia, Amazon and other tech-related heavyweights after recent jitters about artificial intelligence eased somewhat. A Reuters dispatch to The Globe says the bounceback in tech names extended into Canada, where the S&P/TSX Composite Index closed at a record high and found further strength from a rally in oil and gold prices. Nvidia climbed 1.6 per cent after the world's most valuable company said it had signed a deal to sell to Meta millions of its current and future AI chips. Meta added 0.6 per cent. Amazon added 1.8 per cent and Microsoft rose 0.7 per cent. Software makers also showed signs of recovery after recent worries that improved AI tools could lead to more competition and squeeze their profit margins. The S&P/TSX composite added 493.18 points to close at 33,389.73. The Toronto tech sector was up 3.9 per cent, while materials rose 2.8 per cent as gold prices gained 2.2 per cent amid lingering geopolitical concerns. Defence stocks also gained, with Bombardier jumping 5.9 per cent, Magellan adding 1.9 per cent and MDA rising 3.2 per cent. Oil prices settled up more than 4 per cent.