STORY: U.S. stocks ended higher on Friday, with the Dow adding about half a percent to close at a another record high, the S&P 500 gaining nearly two-thirds of a percent to also close at a record high and the Nasdaq climbing about eight-tenths of a percent.Wall Street's main indexes all gained sharply in 2026's first full week of trading, fueled not only by gains in AI-related stocks, but also by increases in materials, industrials and other sectors that have lagged tech stocks in recent years.It's a trend that should continue, said Alexander Morris, CEO and chief investment officer of F/m Investments."I think stocks are going to keep powering higher until something very specifically takes AI off of the track it's on. For whatever reason, although AI stocks are expensive, they're not as expensive as some of the dotcom names were just before the dotcom bust, sort of giving investors some comfort that expensive isn't too expensive, at least not yet. [FLASH] But we're also seeing a broadening of some of this rally. We see small caps starting to participate. We're starting to see the signs of this rally has some legs outside of just one single sector."Among individual stock moves, chipmaker Broadcom rose more than 3.5%, while fellow tech names Alphabet and Tesla also gained.Shares of Intel rallied almost 11% after President Trump said he had a "great meeting" with the chipmaker's CEO, Lip-Bu Tan.And shares of power company Vistra jumped 10.5% after Meta Platforms said it struck 20-year agreements to buy power from three Vistra nuclear plants.Separately, the December nonfarm payrolls report from the Labor Department showed U.S. employment growth slowed more than expected last month, but a decline in the unemployment rate to 4.4% suggested the labor market was holding relatively firm.