Stock market today: Wall Street gains expected [Video]

Wall Street is heading for more gains before the open on Wednesday on the last earnings reports, and ahead of Friday’s U.S. jobs report.

Futures for the S&P 500 rose 0.3 per cent before the bell, while futures for the Dow Jones Industrial Average climbed 0.4 per cent.

General Motors shares dipped modestly after a poor performance by the Detroit automaker’s Chinese joint ventures forced it to write down assets and take a more than US$5 billion restructuring charge. GM’s joint ventures in China used to be a reliable source of equity income for the company, but have swung to losses in the past year. GM shares were down less than one per cent before the bell.

Salesforce jumped close to 13 per cent after the cloud-based software maker reported a more than 8 per cent jump in sales over the same quarter a year ago. The owner of Slack …