Over the past few decades, Japan-based automaker Toyota has spent billions of dollars to expand its manufacturing and assembly plants in the United States. Those plants now employ over 64,000 people across North America and have churned out millions of vehicles.

The centerpiece is Tokyo’s pledge to set up a $550 billion US investment fund and the lack of detail is raising questions about the viability of an agreement that’s been floated as a potential templa...

Meanwhile, earnings estimates for the S&P 500 compiled by research group FactSet are 3% lower since then, the Journal said.