The stock market’s resilience in recent years, particularly the S&P 500’s historic run, has perplexed many, with some experts now suggesting that the index’s performance is driven by a handful of mega ...

U.S. stock markets ended Friday on a high note, capping a strong week fueled by upbeat corporate earnings and encouraging trade news. The S&P 500 gained 0.40% to close at a new record high of 6,388.64 ...

Under the surface of the US stock market’s march to record highs this month, there are signs the rally is running out of gas. The S&P 500 Index has gone 17 sessions without a move of 1% in either ...

Megacap tech stocks powered the major indexes higher as Wall Street continued to set records with a big interest-rate decision looming later this week. The Dow Jones Industrial Average rose 50 points, ...