The S&P 500 has soared over 80% in just three years, putting pressure on companies to deliver on lofty expectations.

Hopes for an end to the government shutdown boost markets, but big tech stocks fall ...

Investors buying stocks with borrowed money suggests confidence that the market will keep rising. If only that were true. Margin debt's recent jump to a new high is potentially worrying. But it's not ...

Shares in CoreWeave slide ...