India, Nov. 18 -- The Canadian stock market was marginally down Monday morning after a subdued start.

Although early signs pointed to a positive opening for stocks on Bay Street, stocks failed to find support after a tweet from CNBC's Beijing Bureau Chief Eunice Yoon suggested Chinese officials have grown pessimistic about the chances for a trade deal due to U.S. President Donald Trump's reluctance to roll back tariffs.

"Mood in Beijing about #trade deal is pessimistic, government source tells me. #China troubled after Trump said no tariff rollback. (China thought both had agreed in principle.)" Yoon tweeted.

Cannabis shares declined sharply, dragging the Capped Healthcare Index down by nearly 3%. Energy shares were the other prominent l...