• TSX ends up 0.1% at 27,775.23
• Constellation Software adds 4.4% on earnings beat
• Materials group loses 0.5% as gold prices fall
• Energy ends down 0.9%

Aug 11 (Reuters) - Canada's main stock index edged higher on Monday as industrial and technology shares notched gains, but the move was limited ahead of a key U.S. inflation report and as investors fretted about a seasonally weak period for the market.

The S&P/TSX composite index (.GSPTSE) , opens new tab ended up 16.55 points, or 0.1%, at 27,775.23, after last week posting its biggest weekly gain since September.

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"We got a big inflation report, CPI, tomorrow, which will be a big number," said Allan Small, senior investment advisor of the Allan Small Financial Group with iA Private Wealth. "That will move markets on both sides of the border."

Wall Street's main indexes ended lower as investors anxiously awaited U.S. consumer price index data on Tuesday to assess the outlook for interest rates and eyed U.S.-China trade developments.

U.S. President Donald Trump has signed an executive order extending a pause in sharply higher U.S. tariffs on Chinese imports for another 90 days, a White House official said.

"I would not be surprised to see volatility in the last two weeks of August and of course into September," Small said.

Over the past 35 years, August and September have ranked as the worst-performing months for the S&P 500, the U.S. benchmark, according to the Stock Trader's Almanac.

The technology sector (.SPTTTK) , opens new tab added 0.2%, helped by a gain of 4.4% for the shares of Constellation Software (CSU.TO) , opens new tab after the company's quarterly earnings beat estimates.

Industrials (.GSPTTIN) , opens new tab were up 0.3% and health care (.GSPTTHC) , opens new tab ended 4.9% higher, with shares of Bausch Health Companies Inc jumping 16.1%.

The materials sector (.GSPTTMT) , opens new tab, which contains metal mining shares, was a drag. It fell 0.5%, weighed by a drop in gold prices as Trump said tariffs will not be placed on imported gold bars.

Shares of Barrick Mining Corp (ABX.TO) , opens new tab were down 2.4% after the company reported second-quarter results.

Energy (.SPTTEN) , opens new tab was down 0.9% as the price of oil settled 0.1% higher at $63.96 a barrel.

https://www.reuters.com/world/americas/tsx-ends-higher-move-limited-ahead-us-inflation-report-2025-08-11/