MarketWatch column names five S&P 500 stocks with the deepest documented AI adoption
A MarketWatch column argues the megacap AI trade has lost momentum: through the first half of 2026 the Magnificent Seven…
S&P 500 News
Latest S&P 500 news — index price movements, earnings season results, Federal Reserve policy impact and US equity market analysis.
US large-cap index
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The world’s 10 largest companies shed $640 billion in combined market value
The combined value of the world’s 10 largest public companies slipped from $28.44 trillion to $27.8 trillion, erasing about $640…
Citi Warns U.S. Equity Positioning May Face Further Pressure
Citi has warned that the technology-led selloff has weakened investor positioning across global equity markets and that the adjustment in…
S&P 500 flashes sell signals as megacap earnings loom
The S&P 500 has tripped a cluster of sell signals from options-market indicators, according to MarketWatch columnist Lawrence G. McMillan….
Wall Street Margin Debt Hits Record $1.5 Trillion, Up 77% in 14 Months
U.S. margin debt reached a record $1.502 trillion in June 2026, a 77% jump in just 14 months. The last…
