Stocks closed broadly higher on Wall Street Monday, sending the S&P 500 and Nasdaq indexes to all-time highs.

Technology stocks accounted for much of the rally, which added to the market's gains from last week. Retailers, restaurant chains and other companies that rely on consumer spending also notched solid gains.

Traders also shifted money into U.S. government bonds, sending yields lower, and they bid up the price of gold. Both can signal uneasiness in the market. Investors mostly shunned energy and materials stocks , which depend upon economic growth more than other sectors do.

The latest g...