TSX opens lower on AI costs and oil prices

Canadas main stock index opened lower as results from major US technology firms raised concerns over rising artificial intelligence costs. Higher oil prices further dampened investor sentiment across the materials and technology sectors.

Insights:
FILE PHOTO: The Art Deco facade of the original Toronto Stock Exchange building is seen on Bay Street in Toronto, Ontario, Canada January 23, 2019. REUTERS/Chris Helgren/File Photo

Canada's main stock index fell 1.2% to 35,816.83 points on Friday morning as technology and materials sectors drove broad declines. The drop follows escalating concerns over artificial intelligence spending reported by major United States technology companies. Elevated oil prices further dampened investor sentiment across domestic markets during the morning session.