The S&P 500 index rose 1.1% this week to its highest close ever, boosted by strong gains in the health care sector amid an agreement...

The S&P 500 index dropped 0.3% this week as the Trump administration unveiled plans for new tariffs on pharmaceuticals, trucks, and...

The S&P 500 index rose 1.6% this week in a broad advance led by the technology sector as investors grew more hopeful for interest rate...