Exchange-traded U.S. equity funds took in $7 billion last week, led by strategies tracking the hottest themes from solar power to robotics.

The S&P 500 rose 1.9% in its best week since November, while technology shares -- dubbed the world’s second-most crowded trade -- hit recor...

A growing chorus of strategists and money managers is voicing concern as investors charge into government debt at seemingly any price.

Central banks are already set to play their part to preserve the expansion.