• TSX ends down 0.1% at 30,036.46
• Posts lowest closing level since November 7
• Tech sector falls 1.1% with Celestica down 3.5%
• Energy rises 1.9% as oil settles 1.4% higher

Nov 18 (Reuters) - Canada's main stock index edged lower on Tuesday as doubts lingered that booming investment in artificial intelligence will pay off, with declines for the technology and industrial sectors offsetting gains for energy.

The S&P/TSX composite index (.GSPTSE) , opens new tab ended down 39.75 points, or 0.1%, at 30,036.46, its lowest closing level since November 7.

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Investors are concerned about possible overspending by companies on artificial intelligence and signs of a slowdown in U.S. job growth, said Michael Dehal, a senior portfolio manager at Dehal Investment Partners at Raymond James.

"It's spooking the markets all week," Dehal said.

U.S. stocks also ended lower, with the S&P 500 putting in a fourth day of losses as valuation worries hit big technology-related shares.

Quarterly results from artificial intelligence and market leader Nvidia (NVDA.O) , opens new tab are due after the bell on Wednesday and the September U.S. jobs report is set to be released on Thursday. The report was delayed by the long U.S. government shutdown.

The Toronto market's technology sector (.SPTTTK) , opens new tab fell 1.1%, with shares of electronic equipment firm Celestica Inc (CLS.TO) , opens new tab ending 3.5% lower. Industrials were down 1% as railroad stocks lost ground.

Shares of Telus Corp (T.TO) , opens new tab dropped 5.3% after JP Morgan downgraded the telecommunications company to an "underweight" rating from "neutral."

Energy (.SPTTEN) , opens new tab was up 1.9% as the price of oil settled 1.4% higher at $60.74 a barrel. Investors weighed the impact of Western sanctions on Russian oil flows.

Activist investor Elliott Investment Management has built a significant stake in Barrick Mining Corp (ABX.TO) , opens new tab, a source familiar with the matter said. Barrick's shares gained 1.5%.

https://www.reuters.com/business/tsx-futures-fall-investors-avoid-risks-commodity-prices-fall-2025-11-18/